Invention Grant
- Patent Title: Split gate non-volatile flash memory cell having metal gates
-
Application No.: US15945161Application Date: 2018-04-04
-
Publication No.: US10249631B2Publication Date: 2019-04-02
- Inventor: Chien-Sheng Su , Feng Zhou , Jeng-Wei Yang , Hieu Van Tran , Nhan Do
- Applicant: Silicon Storage Technology, Inc.
- 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: H01L29/423
- IPC: H01L29/423 ; H01L27/11521 ; H01L21/28 ; H01L29/66 ; H01L29/788 ; H01L27/11524

Abstract:
A memory device including a silicon substrate having a planar upper surface in a memory cell area and an upwardly extending silicon fin in a logic device area. The silicon fin includes side surfaces extending up and terminating at a top surface. The logic device includes spaced apart source and drain regions with a channel region extending there between (along the top surface and the side surfaces), and a conductive logic gate disposed over the top surface and laterally adjacent to the side surfaces. The memory cell includes spaced apart source and drain regions with a second channel region extending there between, a conductive floating gate disposed over one portion of the second channel region, a conductive word line gate disposed over another portion of the second channel region, a conductive control gate disposed over the floating gate, and a conductive erase gate disposed over the source region.
Public/Granted literature
- US20180226420A1 Split Gate Non-volatile Flash Memory Cell Having Metal Gates Public/Granted day:2018-08-09
Information query
IPC分类: