Invention Application
- Patent Title: Method of manufacturing an electrically programmable, non-volatile memory and high-performance logic circuitry in the same semiconductor chip
- Patent Title (中): 在同一半导体芯片中制造电可编程,非易失性存储器和高性能逻辑电路的方法
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Application No.: US09817799Application Date: 2001-03-26
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Publication No.: US20010049166A1Publication Date: 2001-12-06
- Inventor: Daniela Peschiaroli , Alfonso Maurelli , Elisabetta Palumbo , Fausto Piazza
- Applicant: STMicroelectronics S.r.l.
- Applicant Address: IT Agrate Brianza
- Assignee: STMicroelectronics S.r.l.
- Current Assignee: STMicroelectronics S.r.l.
- Current Assignee Address: IT Agrate Brianza
- Priority: EP00830236.6 20000329
- Main IPC: H01L021/8238
- IPC: H01L021/8238

Abstract:
A method for manufacturing an integrated circuit having a memory device and a logic circuit includes forming a plurality of first transistors in a first portion of a semiconductor substrate, a plurality of second transistors in a second portion of the semiconductor substrate, and a plurality of memory cells in a third portion of the semiconductor substrate. A matrix mask used for selectively removing a dielectric layer from the first and third portions of the semiconductor substrate allows dielectric to remain on a floating gate of the plurality of memory cells and on the gate electrodes of the plurality of first transistors. A control gate is then formed on the floating gate, which is separated by the dielectric. Portions of the gate electrodes for the plurality of first transistors are left free so that contact is made with the transistors.
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