- Patent Title: Three-dimensional three-port bit cell and method of assembling same
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Application No.: US14334935Application Date: 2014-07-18
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Publication No.: US10083739B2Publication Date: 2018-09-25
- Inventor: Tzu-Kuei Lin , Hung-Jen Liao , Yen-Huei Chen , Ching-Wei Wu
- Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
- Applicant Address: TW Hsin-Chu
- Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee Address: TW Hsin-Chu
- Agency: Duane Morris LLP
- Main IPC: G11C11/00
- IPC: G11C11/00 ; G11C11/419 ; G11C11/413 ; H01L27/11 ; G11C7/10 ; H01L25/065 ; G11C8/16 ; G11C11/412 ; H01L27/06 ; G11C5/02 ; G11C5/06 ; H01L21/768 ; H01L23/522 ; H01L25/00 ; G11C11/418 ; G11C11/40
Abstract:
A three-port, three-dimensional bit cell generally comprises a read portion of a cell disposed on a first tier. The read portion comprises a plurality of read port elements. The three-port bit cell further comprises a write portion of the cell disposed on a second tier that is vertically stacked with respect to the first tier. The first and second tiers are coupled using at least one via. The write portion comprises a plurality of write port elements.
Public/Granted literature
- US20160276019A9 THREE-DIMENSIONAL THREE-PORT BIT CELL AND METHOD OF ASSEMBLING SAME Public/Granted day:2016-09-22
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