Invention Grant
- Patent Title: Method of integrating FinFET CMOS devices with embedded nonvolatile memory cells
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Application No.: US15489548Application Date: 2017-04-17
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Publication No.: US09985042B2Publication Date: 2018-05-29
- Inventor: Chien-Sheng Su , Jeng-Wei Yang , Man-Tang Wu , Chun-Ming Chen , 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: H01L21/306
- IPC: H01L21/306 ; H01L21/8238 ; H01L27/11568 ; H01L21/3065

Abstract:
A method of forming a memory device with memory cells over a planar substrate surface and FinFET logic devices over fin shaped substrate surface portions, including forming a protective layer over previously formed floating gates, erase gates, word line poly and source regions in a memory cell portion of the substrate, then forming fins into the surface of the substrate and forming logic gates along the fins in a logic portion of the substrate, then removing the protective layer and completing formation of word line gates from the word line poly and drain regions in the memory cell portion of the substrate.
Public/Granted literature
- US20170345840A1 Method Of Integrating FINFET CMOS Devices With Embedded Nonvolatile Memory Cells Public/Granted day:2017-11-30
Information query
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