Invention Grant
- Patent Title: Method of minimizing the operating voltage of an SRAM cell
- Patent Title (中): 使SRAM单元的工作电压最小化的方法
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Application No.: US14813278Application Date: 2015-07-30
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Publication No.: US09390786B2Publication Date: 2016-07-12
- Inventor: Christophe Lecocq , Kaya Can Akyel , Amit Chhabra , Dibya Dipti
- Applicant: STMicroelectronics SA , STMicroelectronics International N.V.
- Applicant Address: FR Montrouge NL Amsterdam
- Assignee: STMicroelectronics SA,STMicroelectronics International N.V.
- Current Assignee: STMicroelectronics SA,STMicroelectronics International N.V.
- Current Assignee Address: FR Montrouge NL Amsterdam
- Agency: Gardere Wynne Sewell LLP
- Priority: FR1457800 20140813
- Main IPC: G11C11/34
- IPC: G11C11/34 ; G11C11/417 ; G11C11/412 ; H01L27/11

Abstract:
An SRAM cell is formed of FDSOI-type NMOS and PMOS transistors. A doped well extends under the NMOS and PMOS transistors and is separated therefrom by an insulating layer. A bias voltage is applied to the doped well. The applied bias voltage is adjusted according to a state of the memory cell. For example, a temperature of the memory cell is sensed and the bias voltage adjusted as a function of the sensed temperature. The adjustment in the bias voltage is configured so that threshold voltages of the NMOS and PMOS transistors are substantially equal to n and p target threshold voltages, respectively.
Public/Granted literature
- US20160049189A1 METHOD OF MINIMIZING THE OPERATING VOLTAGE OF AN SRAM CELL Public/Granted day:2016-02-18
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