- Patent Title: One-time-programming (OTP) memory cell with floating gate shielding
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Application No.: US15008748Application Date: 2016-01-28
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Publication No.: US09865609B2Publication Date: 2018-01-09
- Inventor: Hung-Lin Chen , Shyh-Wei Cheng , Che-Jung Chu
- Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
- Applicant Address: TW Hsin-Chu
- Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee Address: TW Hsin-Chu
- Agency: Eschweiler & Potashnik, LLC
- Main IPC: H01L27/115
- IPC: H01L27/115 ; H01L21/28 ; H01L27/11521 ; G11C16/04

Abstract:
A one-time programmable (OTP) memory cell with floating gate shielding is provided. A pair of transistors is arranged on a semiconductor substrate and electrically coupled in series, where the transistors comprise a floating gate. An interconnect structure overlies the pair of transistors. A shield is arranged in the interconnect structure, directly over the floating gate. The shield is configured to block ions in the interconnect structure from moving to the floating gate. A method for manufacturing an OTP memory cell with floating gate shielding is also provided.
Public/Granted literature
- US20170221910A1 ONE-TIME-PROGRAMMING (OTP) MEMORY CELL WITH FLOATING GATE SHIELDING Public/Granted day:2017-08-03
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