{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9853130","patent":{"patent_number":"US-9853130","title":"Method of modifying the strain state of a semiconducting structure with stacked transistor channels","assignee":null,"inventors":[],"filing_date":"2016-02-22T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L"],"num_claims":10,"abstract":"A method of modifying a strain state of a first channel structure in a transistor is provided, said structure being formed from superposed semiconducting elements, the method including providing on a substrate at least one first semiconducting structure formed from a semiconducting stack including alternating elements based on at least one first semiconducting material and elements based on at least one second semiconducting material different from the first material; then removing portions of the second material from the first semiconducting structure by selective etching, the removed portions forming at least one empty space; filling the empty space with a dielectric material; forming a straining zone on the first semiconducting structure based on a first strained material having an intrinsic strain; and performing thermal annealing to cause the dielectric material to creep, and to cause a change in a strain state of the elements based on the first material."},"analysis":{"summary":"The patent, \"Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels\" (US-9853130), introduces a groundbreaking approach to enhance the performance of advanced transistors, particularly those featuring vertically stacked channels. At its core, this innovation addresses the critical need to precisely control mechanical strain within semiconductor materials to boost charge carrier mobility, leading to faster and more energy-efficient microprocessors.\n\nThe core innovation lies in a multi-step process. First, a semiconducting structure with superposed layers of different materials is provided. Portions of one material are then selectively removed, creating empty spaces within the stacked channels. These voids are subsequently filled with a specialized dielectric material. A straining zone, composed of a material with inherent mechanical stress, is formed on the structure. The pivotal step involves thermal annealing, which causes the dielectric material to 'creep' – a controlled, temperature-dependent deformation. This creep mechanism, driven by the straining zone, induces a precise and desired change in the strain state of the active semiconducting elements.\n\nThis technology solves the persistent problem of applying uniform and effective strain in complex 3D transistor architectures, where traditional methods struggle with precision and scalability. By leveraging the creep behavior of dielectric materials, the invention offers a novel pathway to fine-tune transistor characteristics post-fabrication, minimizing defects and maximizing performance gains.\n\nFrom a business perspective, this patent unlocks significant value. It enables chip manufacturers to extend the performance scaling of transistors, crucial for powering the next generation of AI, IoT, and high-performance computing devices. This approach offers a competitive advantage by providing a robust, controllable, and scalable method for enhancing chip speed and reducing power consumption, translating into higher-performing products and potentially new market opportunities in advanced semiconductor fabrication. It lays the foundation for more powerful and efficient electronic devices across various industries.","layman_explanation":"### What Problem Does This Solve?\n\nThink about how we make computers faster. For decades, the primary way was to simply make the components smaller, packing more power into less space. But we're reaching the physical limits of how small things can get. Even with tiny, stacked transistors – which are like multi-story highways for electricity – simply shrinking them isn't enough anymore. The problem is about how efficiently electricity (electrons) can flow through these tiny channels. If electrons move slowly, your computer is slow. We need to make these 'highways' incredibly smooth and fast, but doing that consistently and reliably in such miniature, complex structures is a monumental engineering challenge. Existing methods often fall short, introducing flaws or not providing enough boost.\n\n### How Does It Work?\n\nThis patent, \"Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels,\" offers an ingenious solution. Imagine building a tiny, layered cake with different types of batter. First, you have several layers of two different cake batters (these are our semiconducting materials). Then, you carefully scoop out specific sections of one type of batter from *inside* the cake, creating little empty pockets or tunnels. Next, you fill these pockets with a special kind of flexible frosting (that's the dielectric material). After that, you place a heavy, slightly stretchy sheet (the straining zone) on top of your cake. Finally, you bake the cake in a very controlled oven (thermal annealing). As it bakes, the frosting in the tunnels slowly 'creeps' or shifts under the pressure from the stretchy sheet. This subtle creeping of the frosting then gently pushes and pulls on the main cake layers, subtly changing their internal structure. This structural change makes the 'highways' for electricity incredibly smooth and optimized, allowing electrons to zip through much faster.\n\n### Why Does This Matter?\n\nThis innovation matters immensely for several reasons. Firstly, it offers a new, highly controlled way to boost the performance of microchips without relying solely on making things smaller. This means faster processors for everything from your smartphone to massive data centers, powering artificial intelligence, virtual reality, and advanced scientific computing. Secondly, by making electrons flow more efficiently, it reduces the amount of power these chips consume. This translates to longer battery life for portable devices and lower energy bills for large computing facilities, which has significant environmental and economic benefits. Thirdly, this method is especially well-suited for the complex, three-dimensional stacked transistor designs that are becoming standard in cutting-edge chip manufacturing. Companies that adopt this technology will gain a significant competitive edge, enabling them to produce more powerful, efficient, and reliable chips, which are the backbone of our digital economy.\n\n### What's Next?\n\nThis patent lays a crucial foundation for the next generation of semiconductors. We can expect to see this technology integrated into the manufacturing processes of leading chipmakers, potentially within the next few years. As it matures, it will enable even more advanced chip designs, pushing the boundaries of computational power and energy efficiency. For investors, this represents a key area for growth in the semiconductor sector, as companies capable of implementing such sophisticated strain engineering will be highly valued. It promises to keep the pace of innovation high, ensuring that our digital future continues to accelerate with increasingly capable hardware.","technical_analysis":"The patent, \"Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels\" (US-9853130), details a sophisticated process for engineering mechanical strain within advanced semiconductor devices, specifically those incorporating stacked transistor channels. This technical analysis delves into the architectural considerations, implementation specifics, and performance implications of this innovative approach.\n\n**Technical Architecture and Problem Statement:**\nModern transistor architectures, such as Gate-All-Around (GAA) FETs, rely on vertically stacked nanowires or nanosheets to achieve higher current drive and density. Enhancing carrier mobility within these channels is paramount for performance scaling. Strain engineering, which involves inducing tensile or compressive stress in the silicon or germanium channel, is a proven technique. However, applying precise, differential, and defect-free strain across multiple, superposed channel structures, often requiring different strain types for nMOS and pMOS, presents significant manufacturing challenges. Traditional methods like SiGe/SiC source/drain stressors or strained capping layers can be difficult to control at nanoscale dimensions and may introduce undesirable interactions or defects in complex 3D stacks.\n\n**Implementation Details and Algorithm Specifics:**\nThis invention proposes a multi-step fabrication sequence:\n\n1.  **Initial Structure Provision**: A substrate is provided with at least one first semiconducting structure. This structure is a stack of alternating elements: a first semiconducting material (e.g., silicon, which will form the active channel) and a second semiconducting material (e.g., silicon-germanium, often used as a sacrificial layer in GAA fabrication). These layers are typically epitaxially grown.\n2.  **Selective Etching**: Portions of the second semiconducting material are selectively removed. This is a crucial step, often performed using highly selective wet or dry etching techniques, creating empty spaces or voids. These voids are strategically located adjacent to the first semiconducting material elements that will form the transistor channels. This selective removal is key to defining where the strain modification will occur.\n3.  **Dielectric Material Filling**: The empty spaces created in the previous step are then meticulously filled with a dielectric material. The choice of dielectric is critical; it must possess specific mechanical properties, particularly its viscoelastic or creep behavior at elevated temperatures. Examples could include certain oxides (e.g., SiO2 with specific doping) or nitrides.\n4.  **Straining Zone Formation**: A straining zone is subsequently formed on the first semiconducting structure. This zone consists of a first strained material, meaning it intrinsically possesses tensile or compressive stress. This layer acts as the primary source of mechanical force that will be transferred to the channels. Common straining materials include silicon nitride (SiN) for tensile strain or silicon carbide (SiC) for compressive strain, often deposited via CVD.\n5.  **Thermal Annealing and Creep Mechanism**: The entire structure undergoes a thermal annealing step. This high-temperature process serves two primary functions:\n    *   It provides the thermal energy for the dielectric material, now confined within the etched spaces and under the influence of the straining zone, to exhibit creep. Creep is a time-dependent deformation under constant mechanical stress, which occurs more readily at higher temperatures.\n    *   As the dielectric material creeps, it deforms and effectively transfers the mechanical stress from the straining zone to the adjacent elements of the first semiconducting material (the active channels). This controlled deformation of the dielectric induces a precise change in the strain state of these channels.\n\n**Integration Patterns and Performance Characteristics:**\nThis method offers a highly integrated approach to strain engineering that can be seamlessly incorporated into advanced CMOS fabrication flows. The selective etching allows for precise localization of the dielectric, enabling differential strain application to nMOS and pMOS channels, which often require opposite types of strain (tensile for nMOS, compressive for pMOS). The use of dielectric creep provides a 'tunable' aspect; the amount and type of strain can be influenced by the choice of dielectric material, the intrinsic strain of the straining zone, and the specific parameters of the thermal annealing (temperature, duration).\n\nPerformance-wise, this technology is expected to yield significant improvements in carrier mobility, directly translating to higher drive currents (I_on) and reduced switching delays (t_delay). By optimizing the strain state, subthreshold leakage current (I_off) can also be better controlled, leading to enhanced energy efficiency. The robustness of this method, minimizing defect formation, is critical for achieving high manufacturing yields in advanced nodes.\n\n**Code-Level Implications (Conceptual):**\nWhile this patent is hardware-centric, its implications extend to TCAD (Technology Computer-Aided Design) and process simulation tools. Engineers would need to update material models to accurately capture the viscoelastic and creep properties of the chosen dielectric materials under various thermal budgets. Simulation algorithms for mechanical stress propagation would need to account for the dynamic, time-dependent deformation of the dielectric, allowing for predictive modeling of the final strain state in the channels. This enables iterative design optimization without extensive physical prototyping, accelerating the development cycle for next-generation devices. The ability to precisely model and control the strain states at this level of detail is crucial for optimizing device physics and performance.\n\nIn conclusion, the Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels provides a robust, scalable, and highly controllable solution to a critical challenge in semiconductor manufacturing, paving the way for further performance enhancements in advanced logic devices.","business_analysis":"The patent, \"Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels\" (US-9853130), represents a significant strategic asset for the semiconductor industry. Its implications extend far beyond technical novelty, offering substantial commercial applications and market opportunities, particularly in an era driven by the insatiable demand for higher-performing and more energy-efficient computing.\n\n**Market Opportunity Size:**\nThe global semiconductor market is projected to reach well over a trillion dollars in the coming decade, with logic devices forming a substantial segment. Within this, advanced nodes (7nm, 5nm, 3nm, and beyond) are critical for high-growth areas like AI accelerators, high-performance computing (HPC), data centers, 5G/6G communication, and advanced mobile processors. All these segments demand continuous improvements in transistor speed and power efficiency. This invention directly addresses a fundamental limitation in scaling these advanced nodes, making the addressable market for its application vast and rapidly expanding. Any technology that can reliably boost transistor performance at these critical nodes holds immense market value.\n\n**Competitive Advantages:**\nThis patent offers several key competitive advantages:\n\n1.  **Precision and Control**: Unlike traditional methods, this approach allows for highly localized and precise strain modification within complex, stacked channel architectures. This level of control is difficult to achieve with blanket depositions or less refined epitaxial growth techniques, giving early adopters a significant edge.\n2.  **Scalability for 3D Architectures**: As the industry moves towards Gate-All-Around (GAA) FETs and other 3D transistor designs, the ability to engineer strain effectively in vertically stacked channels becomes paramount. This technology provides a robust and scalable solution where prior art struggles, positioning it as a foundational enabler for future process nodes.\n3.  **Process Flexibility and Yield Improvement**: The use of a creeping dielectric and a post-deposition thermal anneal introduces new degrees of freedom in manufacturing. It potentially simplifies certain aspects of the fabrication flow, reduces the likelihood of defect formation associated with high-stress material interfaces, and can lead to improved manufacturing yields for advanced logic chips, directly impacting profitability.\n4.  **Performance Differentiation**: Chip manufacturers employing this method can produce transistors with superior carrier mobility, translating into faster clock speeds, lower power consumption, and better overall device performance. This differentiation is crucial in a highly competitive market where performance metrics directly influence market share and premium pricing.\n\n**Revenue Potential and Business Models:**\nFor semiconductor foundries (e.g., TSMC, Samsung Foundry, Intel Foundry Services), this technology can be integrated into their process recipes, becoming a core offering for their most advanced nodes. This translates into higher wafer ASPs (Average Selling Prices) and increased demand from fabless design companies. For IDMs (Integrated Device Manufacturers) like Intel or Micron, it offers a pathway to design and manufacture their own leading-edge products with superior performance characteristics.\n\nPotential business models could include:\n\n*   **Licensing**: The patent holder could license the technology to major foundries and IDMs, generating significant royalty revenues.\n*   **Integration as a Service**: For specialized process steps, the patent holder could offer expertise or specialized materials/equipment required for implementing the dielectric creep and annealing process.\n*   **Enabling Technology**: Companies developing materials (e.g., specific dielectric formulations with tailored creep properties) or specialized annealing equipment could leverage this patent to position their products.\n\n**Strategic Positioning:**\nThis innovation strategically positions its adopters at the forefront of advanced semiconductor manufacturing. It allows them to overcome physical limitations that could otherwise slow down Moore's Law, ensuring continued performance gains in computing. Companies that master this technology will be better equipped to serve the burgeoning markets for AI hardware, high-performance mobile devices, and next-generation data center infrastructure, securing a critical competitive advantage for years to come.\n\n**ROI Projections:**\nInvesting in the implementation of this technology can yield substantial returns. Improved transistor performance translates directly to higher-value products, enabling premium pricing. Enhanced manufacturing yields reduce costs per chip. Furthermore, the ability to meet the performance demands of future applications ensures market relevance and sustained revenue growth. For a foundry, a fractional improvement in yield or a slight increase in performance can translate into billions of dollars in revenue and market capitalization. The long-term ROI is tied to maintaining technological leadership in the fiercely competitive semiconductor landscape.\n\nIn essence, the Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels is not just a technical breakthrough; it's a strategic imperative for businesses aiming to dominate the future of computing.","faqs":[{"answer":"The \"Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels\" refers to a patent (US-9853130) that describes an innovative technique for precisely altering the mechanical strain within the active regions of transistors, particularly those built with multiple layers of channels. This advanced method aims to enhance the performance and energy efficiency of microprocessors.\n\nIn essence, this technology provides a new way to 'tune' the internal stress of semiconductor materials at a microscopic level. By doing so, it optimizes how electrons and holes (charge carriers) move through the transistor channels. Faster and more efficient movement of these carriers directly translates to faster computing speeds and lower power consumption for electronic devices.\n\nThis invention is crucial for next-generation chips, which increasingly use complex 3D architectures like stacked transistor channels. Traditional methods of strain engineering struggle with the precision and scalability required for these intricate designs, making this patent a significant breakthrough in semiconductor manufacturing.","question":"What is Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels?"},{"answer":"The Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels operates through a sophisticated multi-step fabrication process.\n\nFirst, a semiconductor structure is prepared, featuring superposed (stacked) layers made of alternating first and second semiconducting materials. Next, specific portions of the second material are selectively etched away, creating empty spaces or voids within the stacked structure, strategically located near where the transistor channels will operate.\n\nThese empty spaces are then filled with a specialized dielectric material. A crucial characteristic of this dielectric is its ability to 'creep'—a slow, time-dependent deformation under stress at elevated temperatures. Following this, a 'straining zone' is formed on the structure; this is a layer made from a material with inherent mechanical stress.\n\nFinally, the entire assembly undergoes thermal annealing. During this heating process, the dielectric material, confined within the voids and influenced by the straining zone, begins to creep. This controlled deformation of the dielectric then precisely transfers and modifies the mechanical strain to the adjacent elements of the first semiconducting material, which are the active transistor channels. This precise strain modification ultimately optimizes their electronic properties, boosting performance.","question":"How does Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels work?"},{"answer":"The Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels patent solves a critical challenge in advanced semiconductor manufacturing: how to effectively and precisely enhance transistor performance in complex, multi-layered architectures.\n\nAs transistors shrink and designs become 3D (e.g., stacked channels), traditional methods of 'strain engineering'—which involve intentionally deforming semiconductor materials to speed up electron flow—become increasingly difficult to implement. These older methods often struggle with applying uniform strain, achieving different types of strain for n-type and p-type transistors in close proximity, or avoiding the introduction of defects into the delicate structures. They also face issues with strain relaxation during subsequent high-temperature processing steps.\n\nThis invention provides a robust, scalable, and controllable solution to these problems. By leveraging the creep behavior of dielectric materials and strategic thermal annealing, it enables highly localized and stable strain modification, overcoming the limitations of prior art and paving the way for continued performance scaling in next-generation microprocessors.","question":"What problem does Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels solve?"},{"answer":"The patent \"Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels\" (US-9853130) lists no specific inventors or assignee in the provided data. Typically, patent applications list the individual inventors who conceived the invention and the assignee, which is often the company or institution to whom the inventors have assigned their rights.\n\nIn many cases, large corporations or research institutions are the assignees, as they fund the research and development leading to such innovations. Without the specific inventor and assignee information, it's not possible to attribute the invention to a particular individual or entity. However, the innovation itself, regardless of its specific origin, addresses a widespread challenge in the semiconductor industry and reflects a collaborative effort within the broader scientific and engineering community to advance chip technology.","question":"Who invented Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels?"},{"answer":"The Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels offers several key benefits that are crucial for advancing semiconductor technology:\n\n1.  **Enhanced Transistor Performance**: By precisely modifying the strain state of the active channels, this method significantly increases electron and hole mobility. This directly translates to faster transistor switching speeds, leading to more powerful and responsive microprocessors for all electronic devices.\n2.  **Improved Energy Efficiency**: Faster carrier movement means that transistors can operate effectively at lower voltages, reducing power consumption. This leads to longer battery life for mobile devices and substantial energy savings for data centers and high-performance computing systems.\n3.  **Scalability for Advanced Architectures**: This technology is particularly well-suited for complex 3D transistor designs, such as Gate-All-Around (GAA) FETs with stacked channels. It provides a controllable and robust solution for strain engineering in these intricate structures where traditional methods fall short.\n4.  **Process Control and Yield Improvement**: The creep-assisted strain modification offers a new level of precision and tunability. This can lead to more consistent device characteristics across wafers, potentially reducing manufacturing defects and improving overall production yields for advanced chips. The ability to fine-tune performance post-deposition is a significant advantage.","question":"What are the key benefits of Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels?"},{"answer":"The Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels distinguishes itself from prior art in several fundamental ways, primarily through its unique approach to localized and dynamic strain induction.\n\nPrior art methods, such as embedded source/drain stressors (e.g., SiGe/SiC epitaxy) or blanket strained capping layers (e.g., SiN), typically apply strain globally or rely on direct material deposition. These methods often struggle with: 1) **Spatial Selectivity**: They find it difficult to precisely strain individual channels within a dense 3D stack without affecting adjacent structures, or to apply differential strain (tensile vs. compressive) where needed. 2) **Strain Relaxation**: High-temperature processing steps can cause the induced strain to relax, reducing its effectiveness. 3) **Defect Generation**: Direct material interfaces with significant lattice mismatch can introduce crystalline defects.\n\nIn contrast, this invention uses a multi-step process involving selective etching to create precise voids, filling these with a specialized 'creeping' dielectric, and then using thermal annealing to dynamically transfer strain. This allows for unparalleled spatial control, tunable strain levels, reduced defectivity by buffering stress, and a more robust solution for the complex geometries of future stacked transistor channels. It's a more refined and adaptable approach to a critical manufacturing challenge.","question":"How is Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels different from prior art?"},{"answer":"The Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels is poised to have a transformative impact across a wide array of industries that rely heavily on advanced semiconductor technology.\n\n1.  **High-Performance Computing (HPC) and Data Centers**: Faster and more energy-efficient processors are critical for handling the immense computational demands of cloud computing, big data analytics, and scientific simulations, leading to more powerful and sustainable data centers.\n2.  **Artificial Intelligence (AI) and Machine Learning**: AI accelerators will benefit from enhanced processing speeds and reduced power consumption, enabling more complex models, faster training times, and more efficient inference at the edge.\n3.  **Consumer Electronics**: Smartphones, laptops, tablets, and wearables will see improvements in speed, responsiveness, and battery life, leading to a superior user experience.\n4.  **Automotive**: Advanced driver-assistance systems (ADAS) and autonomous vehicles require real-time, high-speed processing with low power. This technology will contribute to safer and more intelligent vehicles.\n5.  **Internet of Things (IoT)**: Edge devices, often constrained by power and size, will benefit from more efficient processors, extending their operational life and capabilities.\n\nEssentially, any sector driven by computational power and energy efficiency stands to gain from the widespread adoption of this semiconductor innovation, pushing the boundaries of what's technologically possible.","question":"What industries will Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels impact?"},{"answer":"The patent titled \"Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels\" (US-9853130) has specific dates associated with its lifecycle within the patent office.\n\nThe **Filing Date** for this patent application was **2016-02-22**. This is the date when the patent application was initially submitted to the patent office, marking the official beginning of the patent examination process and establishing the priority date for the invention.\n\nThe **Publication Date** for this patent was **2017-12-26**. This date typically refers to when the patent was officially granted and published by the patent office, making the full details of the invention publicly available. The time between filing and publication can vary depending on the complexity of the invention, the examination process, and any appeals or continuations.\n\nThese dates are important for understanding the patent's legal standing, its place in the timeline of technological development, and for assessing prior art in subsequent inventions related to semiconductor strain engineering and stacked transistor channels.","question":"When was Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels filed/granted?"},{"answer":"The commercial applications of the \"Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels\" are extensive and will span virtually every segment of the electronics industry that demands high-performance and energy-efficient processing.\n\nForemost, it will be a critical enabler for the **next generation of microprocessors** used in central processing units (CPUs), graphics processing units (GPUs), and specialized accelerators. This means improved performance in everything from flagship smartphones and high-end gaming PCs to enterprise servers and supercomputers. Companies developing AI hardware, in particular, will benefit from the enhanced computational density and efficiency this technology provides.\n\nBeyond core computing, this innovation will impact **specialized integrated circuits (ICs)** for applications such as 5G/6G communication, advanced driver-assistance systems (ADAS) in autonomous vehicles, and sophisticated IoT devices. The ability to precisely tune transistor characteristics will allow for the creation of more robust and power-optimized chips tailored for specific, demanding environments. Furthermore, for **semiconductor foundries and IDMs**, this patent provides a competitive advantage in offering leading-edge process nodes (e.g., 3nm and beyond) with superior performance metrics, attracting high-value customers and securing market leadership in advanced fabrication.","question":"What are the commercial applications of Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels?"},{"answer":"Looking ahead, several future developments are expected for the Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels as the technology matures and integrates into mainstream manufacturing.\n\n1.  **Material Optimization**: Further research will likely focus on developing novel dielectric materials with even more precise and tunable creep properties, allowing for finer control over induced strain. New straining zone materials with higher intrinsic stress or better compatibility with advanced processes could also emerge. This continuous material science innovation will further enhance the effectiveness of the strain modification.\n2.  **Process Refinement and Automation**: The fabrication steps, particularly the selective etching, dielectric filling, and thermal annealing, will undergo continuous refinement. This includes developing more advanced metrology tools for in-situ strain monitoring and greater automation to ensure high manufacturing yields and consistency in high-volume production for stacked transistor channels.\n3.  **Integration with Emerging Architectures**: As chip architectures continue to evolve beyond current Gate-All-Around (GAA) FETs (e.g., into Complementary FETs or other 3D stacking concepts), this strain engineering approach will be adapted and integrated. Its inherent flexibility makes it well-suited for these future complex designs, ensuring continued performance scaling.\n4.  **Advanced Modeling and Simulation**: Technology Computer-Aided Design (TCAD) tools will become more sophisticated, incorporating advanced models for viscoelasticity and creep behavior. This will enable engineers to accurately predict the final strain state and optimize device performance virtually, accelerating the design and development cycle for next-generation microprocessors and semiconductor structures.","question":"What are the future developments expected for Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels?"}],"topics":["Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels","semiconductor strain engineering","stacked transistor channels","transistor performance","dielectric creep","relentless","pursuit","higher"],"tech_cluster":null},"seo":{"title":"Stacked Transistor Strain - Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels US-9853130","description":"Discover the Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels patent. Enhance chip speed & efficiency with novel strain engineering for stacked transistors.","keywords":["Method of Modifying the Strain State of a Semiconducting Structure with Stacked Transistor Channels","semiconductor strain engineering","stacked transistor channels","transistor performance","dielectric creep","thermal annealing","chip manufacturing","US-9853130 patent","microelectronics innovation","advanced logic devices","carrier mobility","semiconducting structure","patent analysis"]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9853130","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9853130","citation_suggestion":"Patentable. \"Method of modifying the strain state of a semiconducting structure with stacked transistor channels\" (US-9853130). https://patentable.app/patents/US-9853130","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9853130","json":"https://patentable.app/api/llm-context/US-9853130","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T04:57:00.004Z"}