{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9594021","patent":{"patent_number":"US-9594021","title":"Apparatus of detecting transmittance of trench on infrared-transmittable material and method thereof","assignee":null,"inventors":[],"filing_date":"2015-08-12T00:00:00.000Z","publication_date":"2017-03-14T00:00:00.000Z","cpc_codes":["G01N","G01N","G01N","G01N","G01N","G01N"],"num_claims":8,"abstract":"An apparatus is provided for detecting transmittance of a trench. The trench is located on an infrared-transmittable material, which can be a wafer. The wafer is obtained after a ditching process. An image of the wafer is fetched. The contrast of the image is greatly enhanced. The contrast-enhanced image is used for automated analysis of the transmittance of the trench. Accuracy of detecting the transmittance is improved. Hence, the present invention uses a simple structure to detect transmittance defects of the trench for ensuring goodness of the wafer."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Apparatus of detecting transmittance of trench on infrared-transmittable material and method thereof","description":"An apparatus is provided for detecting transmittance of a trench. The trench is located on an infrared-transmittable material, which can be a wafer. The wafer is obtained after a ditching process. An ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9594021","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-9594021","citation_suggestion":"Patentable. \"Apparatus of detecting transmittance of trench on infrared-transmittable material and method thereof\" (US-9594021). https://patentable.app/patents/US-9594021","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9594021","json":"https://patentable.app/api/llm-context/US-9594021","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T12:04:16.985Z"}