Invention Grant
- Patent Title: Offset canceling dual stage sensing circuit
- Patent Title (中): 偏移消除双级感测电路
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Application No.: US14015845Application Date: 2013-08-30
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Publication No.: US09165630B2Publication Date: 2015-10-20
- Inventor: Seong-Ook Jung , Taehui Na , Jisu Kim , Jung Pill Kim , Seung Hyuk Kang
- Applicant: QUALCOMM Incorporated , Industry-Academic Cooperation Foundation
- Applicant Address: US CA San Diego KR Seoul
- Assignee: QUALCOMM INCORPORATED,INDUSTRY-ACADEMIC COOPERATION FOUNDATION
- Current Assignee: QUALCOMM INCORPORATED,INDUSTRY-ACADEMIC COOPERATION FOUNDATION
- Current Assignee Address: US CA San Diego KR Seoul
- Agency: Seyfarth Shaw LLP
- Main IPC: G11C11/00
- IPC: G11C11/00 ; G11C11/16 ; G11C7/06 ; G11C13/00

Abstract:
An offset canceling dual stage sensing method includes sensing a data value of a resistive memory data cell using a first load PMOS gate voltage generated by a reference value of a resistive memory reference cell in a first stage operation. The method also includes sensing the reference value of the resistive memory reference cell using a second load PMOS gate voltage generated by the data value of the resistive memory data cell in a second stage operation of the resistive memory sensing circuit. By adjusting the operating point of the reference cell sensing, an offset canceling dual stage sensing circuit increases the sense margin significantly compared to that of a conventional sensing circuit.
Public/Granted literature
- US20150063012A1 OFFSET CANCELING DUAL STAGE SENSING CIRCUIT Public/Granted day:2015-03-05
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