{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9634189","patent":{"patent_number":"US-9634189","title":"Patterned substrate design for layer growth","assignee":null,"inventors":[],"filing_date":"2016-04-26T00:00:00.000Z","publication_date":"2017-04-25T00:00:00.000Z","cpc_codes":["G06F","H01L","H01L","H01L","H01L","H01L","G06F","H01L","H01L","H01L","H01L"],"num_claims":20,"abstract":"A patterned surface for improving the growth of semiconductor layers, such as group III nitride-based semiconductor layers, is provided. The patterned surface can include a set of substantially flat top surfaces and a plurality of openings. Each substantially flat top surface can have a root mean square roughness less than approximately 0.5 nanometers, and the openings can have a characteristic size between approximately 0.1 micron and five microns. One or more of the substantially flat top surfaces can be patterned based on target radiation."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Patterned substrate design for layer growth","description":"A patterned surface for improving the growth of semiconductor layers, such as group III nitride-based semiconductor layers, is provided. The patterned surface can include a set of substantially flat t","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9634189","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-9634189","citation_suggestion":"Patentable. \"Patterned substrate design for layer growth\" (US-9634189). https://patentable.app/patents/US-9634189","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9634189","json":"https://patentable.app/api/llm-context/US-9634189","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:31:24.502Z"}