{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9831267","patent":{"patent_number":"US-9831267","title":"Three-dimensional semiconductor device","assignee":null,"inventors":[],"filing_date":"2016-08-17T00:00:00.000Z","publication_date":"2017-11-28T00:00:00.000Z","cpc_codes":["H01L","H01L"],"num_claims":20,"abstract":"A three-dimensional semiconductor device includes a plurality of stack structures extending in one direction on a substrate and spaced apart from each other, a plurality of vertical structures penetrating the stack structures, a common source plug between the stack structures that are adjacent to each other and extending in parallel to the stack structures, and a spacer structure at each side of the common source plug. The stack structure has a sidewall defining recess regions vertically spaced apart from each other. The spacer structure covers sidewalls of the stack structures. The spacer structure includes an insulating spacer and a protection spacer. The insulating spacer fills the recess regions of the stack structure and includes a surface having grooves. The protection spacer fills the grooves of the surface of the insulating spacer and has a substantially flat surface."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Three-dimensional semiconductor device","description":"A three-dimensional semiconductor device includes a plurality of stack structures extending in one direction on a substrate and spaced apart from each other, a plurality of vertical structures penetra","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9831267","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-9831267","citation_suggestion":"Patentable. \"Three-dimensional semiconductor device\" (US-9831267). https://patentable.app/patents/US-9831267","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9831267","json":"https://patentable.app/api/llm-context/US-9831267","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:38:45.517Z"}