Invention Grant
- Patent Title: Protection of one-time programmable (OTP) memory
- Patent Title (中): 保护一次性可编程（OTP）存储器
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Application No.: US13555412Application Date: 2012-07-23
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Publication No.: US08990478B2Publication Date: 2015-03-24
- Inventor: John A. Fifield , Gerald P. Pomichter, Jr. , Jeffrey S. Zimmerman
- Applicant: John A. Fifield , Gerald P. Pomichter, Jr. , Jeffrey S. Zimmerman
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Hoffman Warnick LLC
- Agent David A. Cain
- Main IPC: G06F12/14
- IPC: G06F12/14 ; G11C16/00
Abstract:
Aspects of the invention provide for masking a current profile of a one-time programmable (OTP) memory. In one embodiment, a circuit includes: a first one-time programmable (OTP) memory configured to receive a data input for a plurality of address fields; and a second OTP memory configured to receive an inverse of the data input for a plurality of address fields, wherein a current profile for a programming supply for the first OTP memory and the second OTP memory is masked, such that the data input for the first OTP memory is undetectable.
Public/Granted literature
- US20140025915A1 PROTECTION OF ONE-TIME PROGRAMMABLE (OTP) MEMORY Public/Granted day:2014-01-23
Information query
