公开(公告)号：US09685958B2

公开(公告)日：2017-06-20

申请号：US14542325

申请日：2014-11-14

Applicant: CASE WESTERN RESERVE UNIVERSITY

Inventor： Swarup Bhunia ,  Abhishek Basak ,  Yu Zheng

IPC: H03K19/177 ,  G01R27/02 ,  G11C17/16 ,  H01L23/525 ,  H01L23/544 ,  G11C17/18 ,  H01L23/538 ,  H01L23/00 ,  H01L23/62

CPC classification number: H03K19/17768 ,  G01R27/025 ,  G11C17/16 ,  G11C17/18 ,  H01L23/5252 ,  H01L23/5382 ,  H01L23/544 ,  H01L23/573 ,  H01L23/576 ,  H01L23/62 ,  H01L24/32 ,  H01L24/48 ,  H01L24/49 ,  H01L24/73 ,  H01L2223/5444 ,  H01L2224/05554 ,  H01L2224/32225 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/49 ,  H01L2224/73265 ,  H01L2924/00014 ,  H01L2924/15184 ,  H01L2924/15311 ,  H01L2924/181 ,  H01L2924/19107 ,  H03K19/17704 ,  H03K19/17724 ,  H01L2224/45099 ,  H01L2924/00012 ,  H01L2224/29099

Abstract: A locking system for an integrated circuit (IC) chip can include an arrangement of one or more antifuse devices in a signal path of the IC chip. The antifuse devices can be configured to operate in a first state, corresponding to a normally open switch, to inhibit normal operation of the IC chip, and to transition from the first state to a permanent second state, corresponding to a closed switch, in response to a program signal applied to at least one terminal of the IC chip to enable the normal operation of the IC chip.

公开(公告)号：US20160047855A1

公开(公告)日：2016-02-18

申请号：US14828305

申请日：2015-08-17

Applicant: Case Western Reserve University

Inventor： Swarup Bhunia ,  Fengchao Zhang ,  Yu Zheng ,  Andrew Hennessy

IPC: G01R31/28 ,  G01R31/317

CPC classification number: G01R31/318588 ,  G01R31/2801 ,  G01R31/318544 ,  G01R31/31858

Abstract: This disclosure relates generally to printed circuit board authentication, such as for protecting printed circuit boards against counterfeiting. The authentication can be implemented based on measurements from the PCB used to generate a unique signature for the PCB. The generated signature of the PCB can be evaluated to determine if the PCB is authentic or counterfeit.

Abstract translation: 本公开一般涉及印刷电路板认证，例如用于保护印刷电路板免于假冒。 可以基于用于为PCB生成唯一签名的PCB的测量来实现认证。 可以评估生成的PCB的签名，以确定PCB是真实的还是假的。