Invention Grant
- Patent Title: VDD pre-set of direct sense DRAM
- Patent Title (中): VDD预置的直接感应DRAM
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Application No.: US12770976Application Date: 2010-04-30
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Publication No.: US08238168B2Publication Date: 2012-08-07
- Inventor: John E. Barth, Jr.
- Applicant: John E. Barth, Jr.
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Gibb & Riley, LLC
- Agent David A. Cain, Esq.
- Main IPC: G11C11/34
- IPC: G11C11/34

Abstract:
A direct sense memory array architecture and method of operation includes a plurality of memory cells where a bit-line restore voltage level is optimized to reduce memory cell leakage during a first inactive period, and a bit-line preset voltage level is optimized for signal sensing during a second active period. The architecture includes a sense head having of a pair of cross coupled gated inverters. Each of the gated inverters is responsive to a first and second gate control signal which can independently gate a power supply to the inverter circuit within each gated inverter. During the second active period, a first gated inverter senses the data state on the first bit-line, and a second gated inverter performs a preset and write-back function on the first bit-line.
Public/Granted literature
- US20110267916A1 VDD PRE-SET OF DIRECT SENSE DRAM Public/Granted day:2011-11-03
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