{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8497570","patent":{"patent_number":"US-8497570","title":"Wafer, fabricating method of the same, and semiconductor substrate","assignee":null,"inventors":[],"filing_date":"2011-07-08T00:00:00.000Z","publication_date":"2013-07-30T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L"],"num_claims":18,"abstract":"A wafer, a fabricating method of the same, and a semiconductor substrate are provided. The wafer includes a first substrate layer formed at a first surface, a second substrate layer formed at a second surface opposite to the first surface, the second substrate layer having a greater oxygen concentration than the first substrate layer, and an oxygen diffusion protecting layer formed between the first substrate layer and the second substrate layer, the oxygen diffusion protecting layer being located closer to the first surface than to the second surface."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Wafer, fabricating method of the same, and semiconductor substrate","description":"A wafer, a fabricating method of the same, and a semiconductor substrate are provided. The wafer includes a first substrate layer formed at a first surface, a second substrate layer formed at a second","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8497570","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-8497570","citation_suggestion":"Patentable. \"Wafer, fabricating method of the same, and semiconductor substrate\" (US-8497570). https://patentable.app/patents/US-8497570","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8497570","json":"https://patentable.app/api/llm-context/US-8497570","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T06:59:55.982Z"}