Invention Grant
US09449709B1 Volatile memory and one-time program (OTP) compatible memory cell and programming method
有权
易失性存储器和一次性程序(OTP)兼容的存储单元和编程方法
- Patent Title: Volatile memory and one-time program (OTP) compatible memory cell and programming method
- Patent Title (中): 易失性存储器和一次性程序(OTP)兼容的存储单元和编程方法
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Application No.: US14863417Application Date: 2015-09-23
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Publication No.: US09449709B1Publication Date: 2016-09-20
- Inventor: Xia Li , Xiaonan Chen , Niladri Narayan Mojumder , Zhongze Wang , Weidan Li
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM INCORPORATED
- Current Assignee: QUALCOMM INCORPORATED
- Current Assignee Address: US CA San Diego
- Agency: Seyfarth Shaw LLP
- Main IPC: G11C11/00
- IPC: G11C11/00 ; G11C17/18 ; G11C11/419 ; G11C17/16

Abstract:
A volatile and one-time program (OTP) compatible asymmetric memory cell may include a first pull-up transistor having a first threshold voltage. The asymmetric memory cell may also include a second pull-up transistor having a second threshold voltage that differs from the first threshold voltage. The asymmetric memory cell may further include a switch coupled to a well of the first pull-up transistor and the second pull-up transistor to alternate between a program voltage (Vpg) and a power supply voltage. The asymmetric memory cell may also include a peripheral switching circuit to control programming of the asymmetric memory cell.
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