{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9606420","patent":{"patent_number":"US-9606420","title":"Method of fabricating wavelength conversion device","assignee":null,"inventors":[],"filing_date":"2016-04-18T00:00:00.000Z","publication_date":"2017-03-28T00:00:00.000Z","cpc_codes":["G02F","G02F","G02F","G02F","G02F"],"num_claims":17,"abstract":"Disclosed is a method for fabricating a wavelength conversion device that is capable of suppressing unintended and random polarization reversal due to heating thereby achieving higher wavelength conversion efficiency. The method includes: forming an insulating layer on one place of a crystal substrate naturally and uniformly polarized in a thickness direction; forming an insulating layer pattern with line-and-space by photolithography; then supplying conductive fluid to both planes of the crystal substrate to apply voltage to the crystal substrate, thereby a wavelength conversion device that is periodically polarization-reversed is fabricated. When temperature of the crystal substrate decreases after heating, an ionizer supplies ions to a surface of the crystal substrate, negative ions collect on +z plane, and positive ion collect on −z plane, thereby unintended and random polarization reversal is suppressed."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method of fabricating wavelength conversion device","description":"Disclosed is a method for fabricating a wavelength conversion device that is capable of suppressing unintended and random polarization reversal due to heating thereby achieving higher wavelength conve","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9606420","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-9606420","citation_suggestion":"Patentable. \"Method of fabricating wavelength conversion device\" (US-9606420). https://patentable.app/patents/US-9606420","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9606420","json":"https://patentable.app/api/llm-context/US-9606420","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:48:41.310Z"}