Invention Grant
- Patent Title: Leakage-current abatement circuitry for memory arrays
- Patent Title (中): 用于存储器阵列的泄漏电流消除电路
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Application No.: US14887210Application Date: 2015-10-19
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Publication No.: US09542993B2Publication Date: 2017-01-10
- Inventor: Loren McLaury
- Applicant: Lattice Semiconductor Corporation
- Applicant Address: US OR Hillsboro
- Assignee: Lattice Semiconductor Corporation
- Current Assignee: Lattice Semiconductor Corporation
- Current Assignee Address: US OR Hillsboro
- Agency: Haynes and Boone, LLP
- Main IPC: G11C11/00
- IPC: G11C11/00 ; G11C11/413 ; H04L12/801 ; H04L25/02 ; H04L12/24 ; G01R31/3185 ; H03M1/00 ; H03M1/34 ; G11C16/24 ; G11C17/16 ; H01L23/498 ; H01L23/50 ; H01L23/60

Abstract:
In one memory array embodiment, in order to compensate for bit-line leakage currents by OFF-state bit-cell access devices, a leakage-current reference circuit tracks access-device leakage current over different process, voltage, and temperature (PVT) conditions to generate a leakage-current reference voltage that drives a different leakage-current abatement device connected to each different bit-line to inject currents into the bit-lines to compensate for the corresponding leakage currents. In one implementation, the leakage-current reference circuit has a device that mimics the leakage of each access device configured in a current mirror that drives the resulting leakage-current reference voltage to the different leakage-current abatement devices.
Public/Granted literature
- US20160099045A1 Leakage-Current Abatement Circuitry for Memory Arrays Public/Granted day:2016-04-07
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