Invention Grant
- Patent Title: Differential and hierarchical sensing for memory circuits
- Patent Title (中): 存储电路的差分和分层感测
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Application No.: US11754422Application Date: 2007-05-29
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Publication No.: US07382672B2Publication Date: 2008-06-03
- Inventor: John Edward Barth, Jr. , Paul C. Parries , William Robert Reohr , Matthew R. Wordeman
- Applicant: John Edward Barth, Jr. , Paul C. Parries , William Robert Reohr , Matthew R. Wordeman
- Applicant Address: US NY Armonk
- Assignee: International business Machines Corporation
- Current Assignee: International business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Ryan, Mason & Lewis, LLP
- Main IPC: G11C7/02
- IPC: G11C7/02

Abstract:
A memory circuit includes multiple word lines, multiple pairs of complementary bank bit lines, multiple block select lines, and multiple of block circuits. Each of the block circuits includes a local bit line; a first transistor having a control terminal connected to the local bit line, a first bias terminal connected to a first bank bit line of a given pair of bank bit lines, and a second bias terminal connecting to a first voltage source; a second transistor having a control terminal connected to a corresponding one of the block select lines, a first bias terminal connected to a second bank bit line of the given pair of bank bit lines, and a second bias terminal connected to the local bit line; and a plurality of memory cells connected to the local bit line and to respective word lines in the memory circuit. At least two block circuits are connected to a given pair of bank bit lines, the block circuits being configured such that a load on each bank bit line in the given pair of bank bit lines is substantially matched to one another.
Public/Granted literature
- US20070223298A1 Differential and Hierarchical Sensing for Memory Circuits Public/Granted day:2007-09-27
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