Integrated circuit I/O integrity and degradation monitoring

    公开(公告)号:US10740262B2

    公开(公告)日:2020-08-11

    申请号:US16729680

    申请日:2019-12-30

    申请人: PROTEANTECS LTD.

    摘要: An input/output (I/O) block for a semiconductor integrated circuit (IC), which includes: at least one I/O buffer, configured to define at least one signal path in respect of a connection to a remote I/O block via a communication channel, each signal path causing a respective signal edge slope; and an I/O sensor, coupled to the at least one signal path and configured to generate an output signal indicative of one or both of: (a) a timing difference between the signal edge for a first signal path and the signal edge for a second signal path, and (b) an eye pattern parameter for one or more of the at least one signal path.

    Loopback testing of integrated circuits

    公开(公告)号:US12123908B1

    公开(公告)日:2024-10-22

    申请号:US18367333

    申请日:2023-09-12

    申请人: PROTEANTECS LTD.

    摘要: Loopback testing may be provided for one or more transmission output paths of a semiconductor Integrated Circuit (IC). One or more parametric loopback sensors are provided in the semiconductor IC, each parametric loopback sensor being configured to receive a clocked data input signal to a respective transmitter of the IC and a signal from a transmission output path from the respective transmitter of the IC, and to generate a respective sensor output based on a comparison of the clocked data input signal and the signal from the transmission output path for the respective transmitter of the IC. A programmable load circuit is also provided in the semiconductor IC, coupled to each transmission output path.

    Integrated circuit margin measurement and failure prediction device

    公开(公告)号:US11385282B2

    公开(公告)日:2022-07-12

    申请号:US16764056

    申请日:2018-11-15

    申请人: PROTEANTECS LTD.

    IPC分类号: G01R31/28 G01R31/30

    摘要: A semiconductor integrated circuit (IC) comprising a signal path combiner, comprising a plurality of input paths and an output path. The IC comprises a delay circuit having an input electrically connected to the output path, the delay circuit delaying an input signal by a variable delay time to output a delayed signal path. The IC may comprise a first storage circuit electrically connected to the output path and a second storage circuit electrically connected to the delayed signal path. The IC comprises a comparison circuit that compares outputs of the signal path combiner and the delayed signal, wherein the comparison circuit comprises a comparison output provided in a comparison data signal to at least one mitigation circuit.

    Efficient integrated circuit simulation and testing

    公开(公告)号:US11132485B2

    公开(公告)日:2021-09-28

    申请号:US17254468

    申请日:2019-06-19

    申请人: PROTEANTECS LTD.

    摘要: A method comprising using at least one hardware processor for: running a Monte Carlo simulation of possible integrated circuit (IC) process variations of each of a plurality of IC cell types, wherein each of the plurality of IC cell types is defined by multiple specific transistors and multiple specific interconnects; based on the results of the Monte Carlo simulation, creating a library of IC cell types and their corresponding behavioral values for each of the possible IC process variations, and storing the library in a non-transient memory; receiving an IC design embodied as a digital file; correlating the received IC design with the library; and predicting a frequency distribution and a power distribution of ICs manufactured according to the IC design.

    Integrated circuit workload, temperature, and/or sub-threshold leakage sensor

    公开(公告)号:US12092684B2

    公开(公告)日:2024-09-17

    申请号:US18215828

    申请日:2023-06-29

    申请人: PROTEANTECS LTD.

    IPC分类号: G01R31/28

    CPC分类号: G01R31/2853

    摘要: An integrated circuit (IC) comprising: a margin measurement circuit configured to monitor multiple data paths of the IC and to output, at different times, different ranges of remaining margins of the multiple data paths; a workload sensor configured to output a value representing aggregate operational stress experienced by the IC over a period of time ending at each of the different times; and a processor configured to: (i) compute, based on the value output by said workload sensor, an upper bound and a lower bound of change of the remaining margin of the IC, and (ii) compute upper and lower bounds of a current remaining margin of the IC, based on (a) the upper and lower bounds of change, and (b) a remaining margin indicated by a border between two adjacent ranges outputted by the margin measurement circuit.

    Integrated circuit margin measurement and failure prediction device

    公开(公告)号:US11841395B2

    公开(公告)日:2023-12-12

    申请号:US17862142

    申请日:2022-07-11

    申请人: PROTEANTECS LTD.

    IPC分类号: G01R31/28 G01R31/30

    CPC分类号: G01R31/2881 G01R31/3016

    摘要: A semiconductor integrated circuit (IC) comprising a signal path combiner, comprising a plurality of input paths and an output path. The IC comprises a delay circuit having an input electrically connected to the output path, the delay circuit delaying an input signal by a variable delay time to output a delayed signal path. The IC may comprise a first storage circuit electrically connected to the output path and a second storage circuit electrically connected to the delayed signal path. The IC comprises a comparison circuit that compares outputs of the signal path combiner and the delayed signal, wherein the comparison circuit comprises a comparison output provided in a comparison data signal to at least one mitigation circuit.