Systems and methods to prevent incorporation of a used integrated circuit chip into a product

    公开(公告)号:US09618566B2

    公开(公告)日:2017-04-11

    申请号:US14620273

    申请日:2015-02-12

    Abstract: In the systems and methods, an identifier is generated for a printed circuit board (PCB), chips are connected to the PCB, and corresponding sets of programmable bits on the chips are programmed to match specific sections of the identifier. Due to the generation of the identifier and the programming of the corresponding sets of programmable bits on the chips to match specific sections of the identifier, the validity of the chips can be verified at any time during product life. For example, for each chip, its set of programmable bits can be read and, then, a determination can be made as to whether that set of programmable bits is indeed programmed to match a specific section of the identifier. Operation of the PCB can be allowed when all the chips are determined to be valid and prohibited when any of the chips are determined to be invalid (e.g., previously used).

    SYSTEM AND METHOD FOR IDENTIFYING OPERATING TEMPERATURES AND MODIFYING OF INTEGRATED CIRCUITS
    14.
    发明申请
    SYSTEM AND METHOD FOR IDENTIFYING OPERATING TEMPERATURES AND MODIFYING OF INTEGRATED CIRCUITS 有权
    识别操作温度的系统和方法以及整合电路的修改

    公开(公告)号:US20160240479A1

    公开(公告)日:2016-08-18

    申请号:US14624907

    申请日:2015-02-18

    Abstract: Aspects of the present disclosure include a computer-implemented method for identifying an operating temperature of an integrated circuit (IC), the method including using a computing device for: applying a test voltage to a test circuit embedded within the IC, the test circuit including a phase shift memory (PSM) element therein, wherein the PSM element crystallizes at a crystallization temperature from an amorphous phase having a first electrical resistance into a crystalline phase having a second electrical resistance, the second electrical resistance being less than the first electrical resistance; and identifying the IC as having operated above the crystallization temperature in response to a resistance of the test circuit at the test voltage being outside of the target operating range.

    Abstract translation: 本公开的方面包括用于识别集成电路(IC)的工作温度的计算机实现的方法,所述方法包括使用计算设备:将测试电压施加到嵌入在所述IC内的测试电路,所述测试电路包括 在其中的相移存储器(PSM)元件,其中所述PSM元件在结晶温度下从具有第一电阻的非晶相结晶成具有第二电阻的晶相,所述第二电阻小于所述第一电阻; 以及响应于所述测试电压在所述测试电压处于目标工作范围之外的电阻而将所述IC识别为高于所述结晶温度的IC。

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