US3934233A

GPTKB entity

Statements (14)
Predicate Object
gptkbp:instanceOf gptkb:US_patent
gptkbp:allows A method for producing a semiconductor device with improved characteristics by forming a silicon oxide film on a silicon substrate and then forming a silicon nitride film thereon.
gptkbp:application US 05/407,073
gptkbp:assignee gptkb:Sony_Corporation
gptkbp:country gptkb:United_States
gptkbp:filingDate 1973-10-19
https://www.w3.org/2000/01/rdf-schema#label US3934233A
gptkbp:inventedBy gptkb:Masaru_Ibuka
gptkbp:priorityDate 1972-10-20
gptkbp:publicationDate 1976-01-20
gptkbp:status Expired
gptkbp:title Method for producing a semiconductor device
gptkbp:bfsParent gptkb:John_Alex_Atalla
gptkbp:bfsLayer 7