发明申请
- 专利标题: Programmable memory cell
- 专利标题(中): 可编程存储单元
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申请号: US12077600申请日: 2008-03-19
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公开(公告)号: US20090237974A1公开(公告)日: 2009-09-24
- 发明人: Jonathan Schmitt , Joseph Glenn , Douglas Smith , Myron Buer
- 申请人: Jonathan Schmitt , Joseph Glenn , Douglas Smith , Myron Buer
- 申请人地址: US CA IRVINE
- 专利权人: BROADCOM CORPORATION
- 当前专利权人: BROADCOM CORPORATION
- 当前专利权人地址: US CA IRVINE
- 主分类号: G11C17/00
- IPC分类号: G11C17/00 ; G11C17/18
摘要:
A disclosed embodiment is a programmable memory cell comprising an elevated ground node having a voltage greater than a common ground node by an amount substantially equal to a voltage drop across a trigger point adjustment element. In one embodiment, the trigger point adjustment element can be a diode. The trigger voltage of the programmable memory cell is raised closer to a supply voltage when current passes through the trigger point adjustment element during a write operation. The programmable memory cell can comprise a pair of cross-coupled inverters, and first and second programmable antifuses that can be coupled to each inverter in the pair of cross-coupled inverters. Since the trigger voltage of the programmable memory cell is raised closer to the supply voltage, a programmed antifuse can easily reach below the trigger voltage and result in a successful write operation even when the supply voltage is a low voltage.
公开/授权文献
- US07796418B2 Programmable memory cell 公开/授权日:2010-09-14
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