{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9685906","patent":{"patent_number":"US-9685906","title":"Photoluminescence mapping of passivation defects for silicon photovoltaics","assignee":null,"inventors":[],"filing_date":"2014-06-26T00:00:00.000Z","publication_date":"2017-06-20T00:00:00.000Z","cpc_codes":["G01N","G01N"],"num_claims":15,"abstract":"Methods for fast and accurate mapping of passivation defects in a silicon wafer involve capturing of photoluminescence (PL) images while the wafer is moving, for instance, when the wafer is transported on a belt in a fabrication line. The methods can be applied to in-line diagnostics of silicon wafers in solar cell fabrication. Example embodiments include a procedure for obtaining the whole wafer images of passivation defects from a single image (map) of photoluminescence intensity, and can provide rapid feedback for process control."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Photoluminescence mapping of passivation defects for silicon photovoltaics","description":"Methods for fast and accurate mapping of passivation defects in a silicon wafer involve capturing of photoluminescence (PL) images while the wafer is moving, for instance, when the wafer is transporte","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9685906","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-9685906","citation_suggestion":"Patentable. \"Photoluminescence mapping of passivation defects for silicon photovoltaics\" (US-9685906). https://patentable.app/patents/US-9685906","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9685906","json":"https://patentable.app/api/llm-context/US-9685906","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T03:52:52.524Z"}