{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11289638","patent":{"patent_number":"US-11289638","title":"Superconducting qubit lifetime and coherence improvement via backside etching","assignee":null,"inventors":[],"filing_date":"2020-06-22T00:00:00.000Z","publication_date":"2022-03-29T00:00:00.000Z","cpc_codes":["G06N"],"num_claims":25,"abstract":"A method for improving lifetime and coherence time of a qubit in a quantum mechanical device is provided. The method includes providing a substrate having a frontside and a backside, the frontside having at least one qubit formed thereon, the at least one qubit having capacitor pads. The method further includes at least one of removing an amount of substrate material from the backside of the substrate at an area opposite the at least one qubit or depositing a superconducting metal layer at the backside of the substrate at the area opposite the at least one qubit to reduce radiofrequency electrical current loss due to at least one of silicon-air (SA) interface, metal-air (MA) interface or silicon-metal (SM) interface so as to enhance a lifetime (T1) and a coherence time (T2) in the at least one qubit."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Superconducting qubit lifetime and coherence improvement via backside etching","description":"A method for improving lifetime and coherence time of a qubit in a quantum mechanical device is provided. The method includes providing a substrate having a frontside and a backside, the frontside hav","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11289638","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-11289638","citation_suggestion":"Patentable. \"Superconducting qubit lifetime and coherence improvement via backside etching\" (US-11289638). https://patentable.app/patents/US-11289638","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11289638","json":"https://patentable.app/api/llm-context/US-11289638","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T22:31:09.687Z"}