Invention Grant
- Patent Title: Body voltage sensing based short pulse reading circuit
- Patent Title (中): 基于体电压检测的短脉冲读取电路
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Application No.: US14088635Application Date: 2013-11-25
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Publication No.: US08917562B2Publication Date: 2014-12-23
- Inventor: Kang-Lung Wang , Chih-Kong K. Yang , Dejan Markovic , Fengbo Ren
- Applicant: The Regents of the University of California
- Applicant Address: US CA Oakland
- Assignee: The Regents of the University of California
- Current Assignee: The Regents of the University of California
- Current Assignee Address: US CA Oakland
- Agent John P. O'Banion
- Main IPC: G11C7/06
- IPC: G11C7/06 ; G11C13/00 ; G11C11/16

Abstract:
As memory geometries continue to scale down, current density of magnetic tunnel junctions (MTJs) make conventional low current reading scheme problematic with regard to performance and reliability. A body-voltage sense circuit (BVSC) short pulse reading (SPR) circuit is described using body connected load transistors and a novel sensing circuit with second stage amplifier which allows for very short read pulses providing much higher read margins, less sensing time, and shorter sensing current pulses. Simulation results (using 65-nm CMOS model SPICE simulations) show that our technique can achieve 550 mV of read margin at 1 ns performance under a 1 V supply voltage, which is greater than reference designs achieve at 5 ns performance.
Public/Granted literature
- US20140153325A1 BODY VOLTAGE SENSING BASED SHORT PULSE READING CIRCUIT Public/Granted day:2014-06-05
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