Invention Grant
US08785307B2 Method of forming a memory cell by reducing diffusion of dopants under a gate
有权
通过减少栅极下掺杂剂的扩散形成存储单元的方法
- Patent Title: Method of forming a memory cell by reducing diffusion of dopants under a gate
- Patent Title (中): 通过减少栅极下掺杂剂的扩散形成存储单元的方法
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Application No.: US13593448Application Date: 2012-08-23
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Publication No.: US08785307B2Publication Date: 2014-07-22
- Inventor: Xian Liu , Mandana Tadayoni , Chien-Sheng Su , Nhan Do
- Applicant: Xian Liu , Mandana Tadayoni , Chien-Sheng Su , Nhan Do
- Applicant Address: US CA San Jose
- Assignee: Silicon Storage Technology, Inc.
- Current Assignee: Silicon Storage Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: DLA Piper LLP (US)
- Main IPC: H01L21/04
- IPC: H01L21/04

Abstract:
A method of forming a memory cell includes forming a conductive floating gate over the substrate, forming a conductive control gate over the floating gate, forming a conductive erase gate laterally to one side of the floating gate and forming a conductive select gate laterally to an opposite side of the one side of the floating gate. After the forming of the floating and select gates, the method includes implanting a dopant into a portion of a channel region underneath the select gate using an implant process that injects the dopant at an angle with respect to a surface of the substrate that is less than ninety degrees and greater than zero degrees.
Public/Granted literature
- US20140057422A1 Method Of Forming A Memory Cell By Reducing Diffusion Of Dopants Under A Gate Public/Granted day:2014-02-27
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