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 |