{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9852983","patent":{"patent_number":"US-9852983","title":"Fabricating method of anti-fuse structure","assignee":null,"inventors":[],"filing_date":"2017-02-08T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L","G11C"],"num_claims":13,"abstract":"A fabricating method of an anti-fuse structure, comprising: providing a substrate having a first conductive plug and a second conductive plug separated from the first conductive plug; forming an amorphous silicon layer on the substrate, wherein a portion of the amorphous silicon layer overlapping the first conductive plug is defined as a first region, and a portion of the amorphous silicon layer overlapping the second conductive plug is defined as a second region; performing an implantation process to the first region and the second region, wherein the first region has a higher doping concentration than the second region; forming a titanium nitride layer on the amorphous silicon layer; and patterning the titanium nitride layer and the amorphous silicon layer."},"analysis":{"summary":"The Fabricating Method of Anti-fuse Structure patent (US-9852983) introduces a groundbreaking approach to manufacturing anti-fuse structures, critical components in one-time programmable (OTP) memory and field-programmable gate arrays (FPGAs). The core innovation lies in its ability to achieve highly consistent and reliable anti-fuse performance through a meticulously controlled differential doping process.\n\nThe primary problem this invention solves is the inherent variability and unreliability often seen in anti-fuse breakdown voltage and leakage currents using traditional fabrication methods. These inconsistencies lead to lower manufacturing yields, increased costs, and reduced device lifespan in advanced semiconductor products.\n\nTechnically, the method involves providing a substrate with distinct first and second conductive plugs. An amorphous silicon layer is then formed, and crucially, an implantation process is performed to create two regions within this layer: a first region overlapping the first plug with a significantly higher doping concentration, and a second region overlapping the second plug with a lower concentration. This differential doping precisely controls the electrical characteristics. Subsequently, a titanium nitride layer is formed on the amorphous silicon, and both layers are patterned to define the anti-fuse structure.\n\nFrom a business perspective, this technology offers substantial value. It promises higher manufacturing yields by reducing defects related to anti-fuse performance, thereby lowering production costs. The enhanced reliability and predictability of anti-fuses enable the development of more robust, secure, and energy-efficient integrated circuits for various applications, including consumer electronics, automotive, and data centers. The market opportunity is vast, as the demand for reliable non-volatile memory and programmable logic continues to grow exponentially, driven by AI, IoT, and high-performance computing. This patent positions its implementers at the forefront of semiconductor reliability and efficiency.","layman_explanation":"### What Problem Does This Solve?\n\nImagine you're building millions of tiny, critical switches for electronics – like the ones that help your phone remember things even when it's off, or let a computer chip change its mind about what job it's doing. These are called 'anti-fuses.' The big challenge has always been making sure every single one of these tiny switches works perfectly, exactly the same way, every time. If they're inconsistent, some might break too easily, some might not break at all, and some might leak power when they shouldn't. This inconsistency leads to a lot of wasted chips during manufacturing (lower 'yields'), higher costs, and products that might not last as long as promised. It's a fundamental hurdle in making advanced electronics more affordable and reliable.\n\n### How Does It Work?\n\nThe Fabricating Method of Anti-fuse Structure patent offers a clever solution that focuses on precision engineering at a microscopic level. Think of it like baking a very special cake with very specific layers. First, you start with a base layer (the 'substrate') that has two tiny 'plates' (the 'conductive plugs'). Then, you put a special, semi-transparent jelly layer (the 'amorphous silicon') over these plates. Here's the magic part: instead of just sprinkling sugar evenly, you precisely 'dope' this jelly layer with tiny, invisible particles. You make sure the jelly directly over the *first* plate gets a much higher concentration of these particles than the jelly over the *second* plate. This creates a subtle but powerful difference in how these two parts of the jelly will behave electrically.\n\nAfter this precise 'seasoning' of the jelly, you add a very thin, strong metallic film (the 'titanium nitride layer') on top. Finally, you use tiny cookie cutters (the 'patterning') to shape the whole thing into individual anti-fuse switches. Because one side of the 'jelly' is much more densely 'seasoned' than the other, when you apply power, the anti-fuse breaks down in a much more predictable and controlled way. It's like having a perfectly designed weak point that ensures the switch always flips exactly when and how it should, without any surprises.\n\n### Why Does This Matter?\n\nThis precision matters immensely for business. First, it leads to significantly higher manufacturing yields. If fewer chips are defective because of unreliable anti-fuses, companies save a huge amount of money on materials and production time. Second, it means more reliable end products. Your phone, car, or data center equipment will work more consistently and last longer, enhancing brand reputation and customer satisfaction. Third, it enables innovation. With more dependable anti-fuses, designers can create more complex and powerful chips, pushing the boundaries of what's possible in AI, IoT, and high-performance computing. This translates directly into competitive advantage and the ability to capture new market opportunities in rapidly expanding tech sectors. It's about building a stronger, more dependable foundation for the digital world.\n\n### What's Next?\n\nThis innovation is set to become a standard in advanced semiconductor manufacturing. We can expect to see its principles adopted in next-generation memory products, more sophisticated programmable logic devices, and even in secure computing applications where data integrity is paramount. As industries increasingly rely on robust and long-lasting electronics, technologies like the Fabricating Method of Anti-fuse Structure will be crucial in ensuring that the underlying hardware can meet the demands of an ever-connected and intelligent world. It represents a smart investment in the foundational reliability of future technology.","technical_analysis":"The Fabricating Method of Anti-fuse Structure patent (US-9852983) outlines a sophisticated and highly controlled process for manufacturing anti-fuse devices, which are indispensable for one-time programmable (OTP) memory, field-programmable gate arrays (FPGAs), and other configurable logic. The technical architecture focuses on manipulating material properties at the atomic level to achieve superior electrical characteristics, addressing critical challenges in device reliability and manufacturing yield.\n\nAt its core, this invention centers on the precise creation of a conductive filament within an amorphous silicon (a-Si) layer. The method begins with a semiconductor substrate that is prepared with at least two separated conductive plugs: a first conductive plug and a second conductive plug. These plugs typically consist of highly doped polysilicon or metal and serve as the initial electrodes for the anti-fuse element. The choice of substrate material and plug configuration is foundational for subsequent layer deposition and electrical interaction.\n\nThe next crucial step involves forming an amorphous silicon layer on the substrate, completely covering the conductive plugs. Amorphous silicon is selected for its unique properties, including its ability to undergo a localized, irreversible phase change (often crystallization or filament formation) when subjected to a sufficiently high electric field. This phase change transforms the highly resistive a-Si into a conductive filament, effectively 'programming' the anti-fuse.\n\nThe innovation's algorithmic specificity lies in the subsequent implantation process. A key challenge in anti-fuse fabrication is achieving consistent breakdown voltage and low leakage current across an array of devices. This patent addresses this by performing a differential ion implantation process. The portion of the amorphous silicon layer directly overlapping the first conductive plug is defined as a 'first region,' and similarly, the portion over the second conductive plug is a 'second region.' During implantation, the first region is subjected to doping that results in a significantly higher concentration of dopants (e.g., n-type or p-type impurities) compared to the second region. This differential doping creates an electrical asymmetry within the amorphous silicon film. The higher doping concentration in the first region can alter the local resistivity, trap density, and electric field distribution, thereby precisely influencing the initiation and growth of the conductive filament during the anti-fuse programming event. This controlled asymmetry ensures a more predictable and uniform breakdown voltage, minimizing device-to-device variation.\n\nFollowing the amorphous silicon processing, a titanium nitride (TiN) layer is formed on top of the doped amorphous silicon. Titanium nitride is an excellent material choice due to its high electrical conductivity, superior barrier properties against dopant diffusion, and good adhesion to silicon-based materials. It typically serves as a top electrode or a protective capping layer, further enhancing the device's electrical integrity and stability. The TiN layer's thickness and deposition method (e.g., PVD, CVD) are critical for optimal performance.\n\nFinally, both the titanium nitride layer and the amorphous silicon layer are patterned. This patterning, typically achieved through photolithography and reactive ion etching (RIE), defines the physical dimensions, contact areas, and isolation of individual anti-fuse cells. Precise patterning is essential for minimizing parasitic effects and ensuring proper integration into complex integrated circuits.\n\nPerformance characteristics derived from this method include significantly improved breakdown voltage uniformity across wafers, reduced leakage currents in the unprogrammed state, and enhanced overall device reliability and endurance. The controlled doping profile allows for fine-tuning of the anti-fuse's switching characteristics, making it suitable for high-performance and high-density applications. Integration patterns are straightforward, as the process is compatible with standard CMOS fabrication flows, requiring specific mask layers for the implantation and patterning steps. The implications at a code level involve the precise control of manufacturing parameters within semiconductor equipment, such as ion implantation dose and energy, deposition temperatures, and etch recipes, all programmed to achieve the specified doping profiles and layer thicknesses. This level of technical control makes the Fabricating Method of Anti-fuse Structure a robust solution for next-generation semiconductor devices.","business_analysis":"The Fabricating Method of Anti-fuse Structure patent (US-9852983) represents a significant advancement in semiconductor manufacturing, with profound implications for several high-growth markets. Its core innovation—a precise, differential doping process for anti-fuse structures—directly addresses critical pain points in chip fabrication, translating into substantial business opportunities and competitive advantages.\n\n**Market Opportunity Size:** The global market for non-volatile memory (NVM) and programmable logic devices (PLDs) is enormous and continues to expand rapidly, driven by the proliferation of IoT, AI, edge computing, automotive electronics, and data centers. Anti-fuses are integral components in One-Time Programmable (OTP) memory for secure boot, device ID, and calibration, as well as in Field-Programmable Gate Arrays (FPGAs) for configurable logic. By improving the fundamental reliability and yield of these components, this technology can capture a significant share of the value chain within these multi-billion dollar markets. Any improvement in manufacturing efficiency and device reliability at the foundational component level has a ripple effect across the entire electronics industry, impacting device cost, performance, and time-to-market.\n\n**Competitive Advantages:** This patent offers distinct competitive advantages. Firstly, it provides superior device reliability and consistency compared to prior art. This translates to higher manufacturing yields, reducing costly rework and scrap, which is a major differentiator in the capital-intensive semiconductor industry. Companies adopting this method can offer more robust products, gaining a reputation for quality and reducing warranty claims. Secondly, the enhanced predictability of anti-fuse performance allows for denser and more complex chip designs, opening avenues for innovation in next-generation products. This strategic positioning enables firms to lead in performance-critical applications where failure is not an option, such as medical devices, aerospace, and high-security systems.\n\n**Revenue Potential and Business Models:** The revenue potential stems from both direct application and licensing. Chip manufacturers can leverage this method to produce higher-value NVM and FPGA products with better margins. Licensing the technology to other foundries or IDMs (Integrated Device Manufacturers) presents a significant revenue stream. Furthermore, the ability to produce more reliable anti-fuses could enable new business models focused on 'zero-defect' or 'extended-life' components, commanding premium pricing. This innovation could also reduce the total cost of ownership for end-users by extending product lifecycles and minimizing field failures.\n\n**Strategic Positioning:** Companies that integrate the Fabricating Method of Anti-fuse Structure into their manufacturing processes will be strategically positioned as leaders in semiconductor reliability and advanced manufacturing. This technology can strengthen their intellectual property portfolio, attract top engineering talent, and foster partnerships across the supply chain. It provides a defensive barrier against competitors struggling with anti-fuse reliability and an offensive capability to develop market-leading products.\n\n**ROI Projections:** While specific ROI figures depend on implementation scale and market penetration, the benefits are clear. A conservative estimate of a 5-10% improvement in manufacturing yield for anti-fuse-containing chips could lead to millions, if not tens of millions, in annual savings for large-scale producers. Reduced post-sales support and warranty costs due to enhanced reliability further contribute to a strong return on investment. The ability to launch more competitive products faster, thanks to higher yields and design predictability, also offers significant market share gains and accelerated revenue growth. This patent is not just a technical improvement; it's a strategic asset for long-term business success in the semiconductor industry.","faqs":[{"answer":"The Fabricating Method of Anti-fuse Structure (US-9852983) is a patented invention detailing a novel and highly precise process for manufacturing anti-fuse structures. Anti-fuses are crucial, one-time programmable electrical switches used in various semiconductor devices, particularly in One-Time Programmable (OTP) memory and Field-Programmable Gate Arrays (FPGAs).\n\nThis patent introduces a method that significantly enhances the reliability and consistency of these anti-fuse structures. It achieves this through a carefully controlled process involving specific material layers and a unique differential doping technique. The innovation aims to overcome the variability and performance issues commonly associated with traditional anti-fuse fabrication.\n\nEssentially, the Fabricating Method of Anti-fuse Structure provides a blueprint for creating more robust, predictable, and efficient anti-fuse components, which are fundamental to the performance and longevity of modern electronic devices. Its focus on precision at the microscopic level sets a new standard for semiconductor manufacturing. This method is a key advancement in microelectronics fabrication.","question":"What is Fabricating Method of Anti-fuse Structure?"},{"answer":"The Fabricating Method of Anti-fuse Structure operates through a series of meticulously controlled steps to engineer the electrical properties of the anti-fuse. It begins by preparing a semiconductor substrate with two distinct conductive plugs, which act as initial electrodes.\n\nNext, an amorphous silicon layer is formed over these plugs. This amorphous silicon is the active material that changes its electrical state when programmed. The core innovation then occurs: a precise ion implantation process is performed. This process ensures that the region of amorphous silicon over the first conductive plug receives a significantly higher doping concentration than the region over the second plug. This differential doping creates an intentional electrical asymmetry within the anti-fuse structure.\n\nFollowing this, a titanium nitride layer is deposited on the amorphous silicon, serving as a top electrode and protective barrier. Finally, both the titanium nitride and amorphous silicon layers are precisely patterned. This entire sequence ensures that when the anti-fuse is programmed, the conductive filament forms in a highly predictable and consistent manner, leading to uniform electrical characteristics and enhanced reliability. This precise control over material properties is central to the Fabricating Method of Anti-fuse Structure's efficacy.","question":"How does Fabricating Method of Anti-fuse Structure work?"},{"answer":"The Fabricating Method of Anti-fuse Structure primarily solves the long-standing problem of inconsistency and unreliability in anti-fuse performance, which has plagued traditional semiconductor manufacturing. Conventional anti-fuse fabrication methods often result in significant variations in breakdown voltage, undesirable leakage currents in the unprogrammed state, and unpredictable programming behavior across an array of devices.\n\nThese inconsistencies lead to several critical issues: lower manufacturing yields due to defective chips, increased production costs from rework and scrap, and reduced overall device reliability and lifespan for end-products. Such problems hinder the development of advanced memory and programmable logic devices, especially as chip dimensions continue to shrink.\n\nBy providing a method for creating anti-fuses with highly uniform and predictable electrical characteristics, the Fabricating Method of Anti-fuse Structure mitigates these issues. It ensures that anti-fuses perform as expected, thereby boosting manufacturing efficiency, reducing costs, and enabling the creation of more robust and dependable electronic components. The innovation addresses a fundamental challenge in microchip fabrication.","question":"What problem does Fabricating Method of Anti-fuse Structure solve?"},{"answer":"The patent for Fabricating Method of Anti-fuse Structure (US-9852983) does not list specific inventors in the provided data. This information is typically found in the full patent document under the 'Inventors' section. Patents are usually assigned to a company or organization, which then holds the rights to the invention.\n\nHowever, the nature of this invention, focusing on semiconductor fabrication processes, suggests it would have been developed by a team of highly skilled engineers and material scientists within a leading semiconductor research and development institution or a major chip manufacturing company. These teams often work collaboratively to solve complex manufacturing challenges.\n\nThe development of such a sophisticated method as the Fabricating Method of Anti-fuse Structure requires deep expertise in fields like solid-state physics, materials science, electrical engineering, and advanced lithography. The specific individuals or team behind this innovation would have played a crucial role in advancing anti-fuse technology. To confirm the specific inventors, one would need to consult the complete patent filing for US-9852983.","question":"Who invented Fabricating Method of Anti-fuse Structure?"},{"answer":"The Fabricating Method of Anti-fuse Structure offers several significant benefits that impact both semiconductor manufacturers and the end-users of electronic devices. A primary benefit is **enhanced device reliability and consistency**. By precisely controlling the anti-fuse's electrical properties, this method ensures uniform breakdown voltages and reduced leakage currents, leading to more dependable and longer-lasting chips.\n\nAnother key advantage is **higher manufacturing yields**. The reduction in inconsistent anti-fuse performance directly translates to fewer defective chips during production, thereby lowering manufacturing costs and increasing overall efficiency. This positively impacts the profitability of chip makers.\n\nFurthermore, this innovation **enables advanced chip designs** by providing a stable and predictable anti-fuse component. This allows engineers to create more complex, denser, and higher-performing integrated circuits for applications ranging from secure microcontrollers to cutting-edge AI accelerators. The Fabricating Method of Anti-fuse Structure also contributes to **improved power efficiency** due to minimized leakage. These benefits collectively drive forward the capabilities and reliability of modern electronics. The overall impact is a more robust and cost-effective semiconductor ecosystem.","question":"What are the key benefits of Fabricating Method of Anti-fuse Structure?"},{"answer":"The Fabricating Method of Anti-fuse Structure distinguishes itself from prior art through its innovative and highly controlled approach to material modification within the anti-fuse structure. Traditional methods often struggled with achieving consistent electrical characteristics, leading to variability in breakdown voltages and higher leakage currents.\n\nThe key differentiator of this patent is its **differential doping process** within the amorphous silicon layer. While amorphous silicon itself might be used in prior art, the precise implantation technique that creates a *significantly higher doping concentration* in one region compared to another is novel. This engineered asymmetry allows for unprecedented control over the anti-fuse's electrical behavior, ensuring a more predictable and uniform breakdown mechanism.\n\nPrior art solutions typically lacked this fine-grained control over local material properties, often relying on more generalized dielectric breakdown or less nuanced material compositions. The Fabricating Method of Anti-fuse Structure's integrated approach, combining specific material layers with this differential doping and precise patterning, results in superior performance consistency and reliability, setting it apart from less sophisticated fabrication techniques. This innovative method overcomes limitations previously faced in anti-fuse manufacturing.","question":"How is Fabricating Method of Anti-fuse Structure different from prior art?"},{"answer":"The Fabricating Method of Anti-fuse Structure has the potential to significantly impact a wide range of industries that rely heavily on advanced semiconductor technology. Given its focus on enhancing the reliability and performance of anti-fuse structures, its influence will be felt across sectors utilizing One-Time Programmable (OTP) memory and Field-Programmable Gate Arrays (FPGAs).\n\nKey industries include **Consumer Electronics**, where more reliable anti-fuses will lead to longer-lasting smartphones, laptops, and smart home devices. The **Automotive Industry** will benefit immensely, particularly in areas like Advanced Driver-Assistance Systems (ADAS), infotainment, and autonomous driving, where chip reliability is critical for safety. **Data Centers and High-Performance Computing** will see improvements in server reliability and the efficiency of AI accelerators and network infrastructure. The **Aerospace and Defense** sectors, with their stringent quality and reliability requirements, will find this technology invaluable for mission-critical systems.\n\nFurthermore, **Industrial IoT (IIoT)** and **Medical Devices** will benefit from the enhanced dependability of embedded systems and sensors. Any sector demanding secure, robust, and efficient electronic components stands to gain from the advancements offered by the Fabricating Method of Anti-fuse Structure. This broad impact underscores the foundational nature of this semiconductor innovation.","question":"What industries will Fabricating Method of Anti-fuse Structure impact?"},{"answer":"The patent for Fabricating Method of Anti-fuse Structure, identified by the number US-9852983, was filed on **2017-02-08** (February 8, 2017). The patent was subsequently published, and the publication date is **2017-12-26** (December 26, 2017).\n\nThe filing date marks when the patent application was officially submitted to the patent office, establishing the priority date for the invention. The publication date is when the patent document became publicly available, allowing others to review its contents. While the patent may have been granted later, the provided data specifically mentions the filing and publication dates.\n\nThese dates are important for understanding the timeline of the innovation and its place within the broader history of semiconductor technology development. The relatively recent filing and publication indicate that the Fabricating Method of Anti-fuse Structure is a contemporary solution addressing modern challenges in chip manufacturing. This timeline positions the patent within the current generation of semiconductor advancements.","question":"When was Fabricating Method of Anti-fuse Structure filed/granted?"},{"answer":"The commercial applications of the Fabricating Method of Anti-fuse Structure are extensive, primarily within the semiconductor industry and its downstream markets. By providing a method for creating highly reliable and consistent anti-fuse structures, this patent directly enhances the performance and marketability of various electronic components.\n\nOne major application is in **One-Time Programmable (OTP) Memory**. This technology will lead to more robust OTP blocks used for secure boot, cryptographic key storage, device identification, and calibration data in microcontrollers, CPUs, and System-on-Chips (SoCs). This is critical for hardware security in IoT devices, automotive systems, and consumer electronics.\n\nAnother significant application is in **Field-Programmable Gate Arrays (FPGAs)**. The improved anti-fuses will enable more reliable and complex configurable logic, enhancing the performance of FPGAs used in data centers, AI accelerators, networking equipment, and specialized embedded systems. Furthermore, the higher manufacturing yields achieved through this method will translate into **cost savings for chip manufacturers**, making advanced components more economically viable. This can lead to more competitive pricing for end-products across all sectors. The Fabricating Method of Anti-fuse Structure thus underpins a wide array of high-value electronic products.","question":"What are the commercial applications of Fabricating Method of Anti-fuse Structure?"},{"answer":"Future developments related to the Fabricating Method of Anti-fuse Structure are likely to focus on optimizing its integration into even smaller technology nodes and exploring new material combinations. We can anticipate research into refining the differential doping process to achieve even greater precision and control over anti-fuse characteristics, potentially leading to dynamic, multi-level anti-fuses.\n\nFurther advancements might involve adapting this method for **3D stacking technologies**, enabling higher-density memory and logic integration. This could involve exploring novel deposition techniques for amorphous silicon and titanium nitride that are compatible with multi-layered architectures. There may also be a push to integrate the principles of the Fabricating Method of Anti-fuse Structure with **emerging memory technologies**, such as Resistive Random-Access Memory (RRAM) or Phase-Change Memory (PCM), to enhance their reliability and programming efficiency.\n\nUltimately, the long-term vision for this technology is to serve as a foundational element for increasingly autonomous, secure, and energy-efficient electronic systems. Its precision and reliability will be crucial for the next generation of AI hardware, ubiquitous IoT devices, and resilient computing infrastructure. The Fabricating Method of Anti-fuse Structure is expected to evolve, pushing the boundaries of what is possible in semiconductor fabrication. This continuous innovation will be key to future microelectronic advancements.","question":"What are the future developments expected for Fabricating Method of Anti-fuse Structure?"}],"topics":["Fabricating Method of Anti-fuse Structure","anti-fuse fabrication","semiconductor manufacturing","chip reliability","amorphous silicon","technical","background","imperative"],"tech_cluster":null},"seo":{"title":"Fabricating Method of Anti-fuse Structure - Patent US-9852983","description":"Discover the Fabricating Method of Anti-fuse Structure patent for enhanced chip reliability & higher manufacturing yields. Detailed technical analysis & business insights.","keywords":["Fabricating Method of Anti-fuse Structure","anti-fuse fabrication","semiconductor manufacturing","chip reliability","amorphous silicon","doping concentration","titanium nitride","non-volatile memory","programmable logic","integrated circuits","patent US-9852983","semiconductor process","memory devices","chip technology"]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9852983","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-9852983","citation_suggestion":"Patentable. \"Fabricating method of anti-fuse structure\" (US-9852983). https://patentable.app/patents/US-9852983","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9852983","json":"https://patentable.app/api/llm-context/US-9852983","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:21:12.163Z"}