发明名称 SONOS type stacks for nonvolatile charge trap memory devices and methods to form the same
摘要 A method includes forming a first oxide layer. The method further includes etching a portion of the first oxide layer using a first decoupled plasma nitridation process. The method includes forming, subsequent to the etching, a charge-trapping layer on the first oxide layer.
申请公布号 US9553175(B2) 申请公布日期 2017.01.24
申请号 US201514824023 申请日期 2015.08.11
申请人 CYPRESS SEMICONDUCTOR CORPORATION 发明人 Puchner Helmut;Polishchuk Igor;Levy Sagy Charel
分类号 H01L21/3205;H01L29/66;H01L21/28;H01L29/423;H01L29/51;H01L29/792 主分类号 H01L21/3205
代理机构 Lowenstein Sandler LLP 代理人 Lowenstein Sandler LLP
主权项 1. A method comprising: forming a first oxide layer; etching a portion of the first oxide layer using a first decoupled plasma nitridation process; and forming, subsequent to the etching, a charge-trapping layer on the first oxide layer, wherein the charge-trapping layer includes an oxide-rich oxy-nitride portion and a silicon-rich oxy-nitride portion.
地址 San Jose CA US