- 专利标题: DRIVER CIRCUIT FOR PHASE-CHANGE MEMORY CELLS AND METHOD OF DRIVING PHASE-CHANGE MEMORY CELLS
-
申请号: US17814442申请日: 2022-07-22
-
公开(公告)号: US20230021601A1公开(公告)日: 2023-01-26
- 发明人: Agatino Massimo Maccarrone , Antonino Conte , Francesco Tomaiuolo , Michelangelo Pisasale , Marco Ruta
- 申请人: STMicroelectronics S.r.l.
- 申请人地址: IT Agrate Brianza
- 专利权人: STMicroelectronics S.r.l.
- 当前专利权人: STMicroelectronics S.r.l.
- 当前专利权人地址: IT Agrate Brianza
- 优先权: IT102021000019574 20210723
- 主分类号: G11C13/00
- IPC分类号: G11C13/00
摘要:
In an embodiment a circuit includes a plurality of memory cells, wherein each memory cell includes a phase-change memory storage element coupled in series with a respective current-modulating transistor between a supply voltage node and a reference voltage node, the current-modulating transistors being configured to receive a drive signal at a control terminal and to inject respective programming currents into the respective phase-change memory storage element as a function of the drive signal, a driver circuit configured to produce the drive signal at a common control node, wherein the common control node is coupled to the control terminals of the current-modulating transistors, the drive signal modulating the programming currents to produce SET programming current pulses and RESET programming current pulses and at least one current generator circuit configured to inject a compensation current into the common control node in response to the current-modulating transistors injecting the programming currents into the respective phase-change memory storage elements.
信息查询