Invention Grant
- Patent Title: Implementing eFuse visual security of stored data using EDRAM
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Application No.: US15064543Application Date: 2016-03-08
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Publication No.: US09646712B1Publication Date: 2017-05-09
- Inventor: Todd A. Christensen , Karl R. Erickson , Phil C. Paone , David P. Paulsen , John E. Sheets, II , Gregory J. Uhlmann
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Joan Pennington
- Main IPC: G11C17/18
- IPC: G11C17/18 ; G11C17/16 ; G11C11/4096 ; H03K19/21

Abstract:
A method and circuit for implementing Electronic Fuse (eFuse) visual security of stored data using embedded dynamic random access memory (EDRAM), and a design structure on which the subject circuit resides are provided. The circuit includes EDRAM and eFuse circuitry having an initial state of a logical 0. The outputs of the eFuse and an EDRAM are connected through an exclusive OR (XOR) gate, enabling EDRAM random data to be known at wafer test and programming of the eFuse to provide any desired logical value out of the XORed data combination.
Public/Granted literature
- US20170148527A1 IMPLEMENTING EFUSE VISUAL SECURITY OF STORED DATA USING EDRAM Public/Granted day:2017-05-25
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