Invention Grant
- Patent Title: Antifuse OTP structure with hybrid device and hybrid junction for select transistor
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Application No.: US16744060Application Date: 2020-01-15
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Publication No.: US11217595B2Publication Date: 2022-01-04
- Inventor: Li Li , Zhigang Wang
- Applicant: Zhuhai Chuangfeixin Technology Co., Ltd.
- Applicant Address: CN Zhuhai
- Assignee: Zhuhai Chuangfeixin Technology Co., Ltd.
- Current Assignee: Zhuhai Chuangfeixin Technology Co., Ltd.
- Current Assignee Address: CN Zhuhai
- Agency: SV Patent Service
- Main IPC: H01L27/112
- IPC: H01L27/112

Abstract:
An antifuse One-Time-Programmable memory cell includes a substrate, a select transistor formed on the substrate, and an antifuse capacitor formed on the substrate. The select transistor includes a first gate dielectric layer formed on the substrate, a first gate formed on the gate dielectric layer, a first low-voltage junction formed in the substrate, and a second low-voltage junction formed in the substrate. A source and a drain for the select transistor are formed by the first low-voltage junction and the second low-voltage junction. The antifuse capacitor includes a second gate dielectric layer formed on the substrate, a second gate formed on the gate dielectric layer, a third low-voltage junction formed in the substrate, and a fourth low-voltage junction formed in the substrate. A source and a drain for the antifuse capacitor are respectively formed by the third low-voltage junction and the fourth low-voltage junction.
Public/Granted literature
- US20210217756A1 novel antifuse OTP structure with hybrid device and hybrid junction for select transistor Public/Granted day:2021-07-15
Information query
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