Invention Grant
- Patent Title: Memory circuit having tracking circuit including series-connected transistors
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Application No.: US16206314Application Date: 2018-11-30
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Publication No.: US10553265B2Publication Date: 2020-02-04
- Inventor: Kuoyuan (Peter) Hsu , Jacklyn Chang
- Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
- Applicant Address: TW Hsinchu
- Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
- Current Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
- Current Assignee Address: TW Hsinchu
- Agency: Hauptman Ham, LLP
- Main IPC: G11C7/22
- IPC: G11C7/22 ; G11C7/14 ; G11C29/50 ; G11C7/12 ; G11C11/404 ; G11C11/4094

Abstract:
A memory circuit including: memory cells, each including a storage cell transistor; a first tracking bit line; and a tracking circuit, electrically coupled between a first tracking word line and a reference voltage node, including a first set of first tracking cells, each first tracking cell including a first cell transistor having a same transistor configuration as each storage cell transistor; and wherein: a driving capacity of the storage cell transistors of the memory cells has a storage cell statistical distribution that exhibits a weak bit current value; a driving capacity of the first cell transistors of the first set of tracking cells has a first tracking cell statistical distribution that exhibits a first strong bit current value; and a first quantity of the first tracking cells is sufficient to cause the first strong bit current value to be equal to or less than the weak bit current value.
Public/Granted literature
- US20190096457A1 MEMORY CIRCUIT INCLUDING TRACKING CIRCUIT Public/Granted day:2019-03-28
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