{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9650723","patent":{"patent_number":"US-9650723","title":"Large area seed crystal for ammonothermal crystal growth and method of making","assignee":null,"inventors":[],"filing_date":"2014-04-10T00:00:00.000Z","publication_date":"2017-05-16T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L"],"num_claims":20,"abstract":"Large area seed crystals for ammonothermal GaN growth are fabricated by deposition or layer transfer of a GaN layer on a CTE-matched handle substrate. The sides and back of the handle substrate are protected from the ammonothermal growth environment by a coating comprising an adhesion layer, a diffusion barrier layer, and an inert layer. A patterned mask, also comprising an adhesion layer, a diffusion barrier layer, and an inert layer, may be provided over the GaN layer to allow for reduction of the dislocation density by lateral epitaxial growth."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Large area seed crystal for ammonothermal crystal growth and method of making","description":"Large area seed crystals for ammonothermal GaN growth are fabricated by deposition or layer transfer of a GaN layer on a CTE-matched handle substrate. The sides and back of the handle substrate are pr","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9650723","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-9650723","citation_suggestion":"Patentable. \"Large area seed crystal for ammonothermal crystal growth and method of making\" (US-9650723). https://patentable.app/patents/US-9650723","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9650723","json":"https://patentable.app/api/llm-context/US-9650723","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:22:02.972Z"}