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    Electrochemically controlled capillarity to dynamically connect portions of an electrical circuit
    23.
    发明授权
    Electrochemically controlled capillarity to dynamically connect portions of an electrical circuit 有权

    公开(公告)号：US11855341B2

    公开(公告)日：2023-12-26

    申请号：US17457353

    申请日：2021-12-02

    Applicant: International Business Machines Corporation

    Inventor： Samuel Connor ,  Joseph Kuczynski ,  Matthew Doyle ,  Stuart B. Benefield

    IPC: H01Q1/36 ,  H01Q1/38 ,  H05K3/06

    CPC classification number: H01Q1/364 ,  H01Q1/38 ,  H05K3/06 ,  H05K2203/0165

    Abstract: Embodiments herein describe a capillary containing a eutectic conductive liquid (e.g., EGaIn) and an electrolyte (e.g., NaOH) that is integrated into a printed circuit board (PCB). In one embodiment, the PCB includes a capillary, a negative electrode, a positive electrode, a plurality of insulation layers, and a conductive layer. The capillary extends through the PCB. The capillary includes a side surface forming an annular cylinder. A eutectic conductive liquid and an electrolyte are disposed within an aperture formed by the side surface. An electrode extends through the side surface and contacts at least the eutectic conductive liquid or the electrolyte. The negative electrode is disposed at a first end of the capillary. The positive electrode is disposed at a second end of the capillary. The conductive layer is disposed between two of the plurality of insulation layers. The electrode forms an electrical connection with the conductive layer.

    CONDUCTIVE PARTICLE INTERCONNECT SWITCH
    26.
    发明申请
    CONDUCTIVE PARTICLE INTERCONNECT SWITCH 有权

    公开(公告)号：US20220344569A1

    公开(公告)日：2022-10-27

    申请号：US17811374

    申请日：2022-07-08

    Applicant: International Business Machines Corporation

    Inventor： Matthew Doyle ,  Joseph Kuczynski ,  Patrick Egan ,  Jeffrey N. Judd ,  Timothy J. Tofil

    IPC: H01L41/09 ,  H01H1/029 ,  H01H57/00 ,  H01L41/193

    Abstract: Provided is an apparatus comprising a conductive particle interconnect (CPI). The CPI includes an elastomeric carrier and a plurality of conductive particles dispersed therein. The elastomeric carrier includes an electroactive polymer (EAP) configured to move between a first position and a second position in response to an electrical field. The CPI is configured to exhibit a first electrical resistance when the EAP is in the first position and a second electrical resistance when the EAP is in the second position. The apparatus further comprises one or more electrodes electrically coupled to the CPI. The electrodes are configured to generate the electrical field within the CPI. The apparatus further comprises one or more insulators coupled to the CPI. The one or more insulators are configured to constrain expansion of the CPI in at least one direction.

    Conductive particle interconnect switch
    29.
    发明授权
    Conductive particle interconnect switch 有权

    公开(公告)号：US11411166B2

    公开(公告)日：2022-08-09

    申请号：US16415949

    申请日：2019-05-17

    Applicant: International Business Machines Corporation

    Inventor： Matthew Doyle ,  Joseph Kuczynski ,  Patrick Egan ,  Jeffrey N. Judd ,  Timothy J. Tofil

    IPC: H01L41/09 ,  H01H57/00 ,  H01H1/029 ,  H01L41/193

    Abstract: Provided is an apparatus comprising a conductive particle interconnect (CPI). The CPI includes an elastomeric carrier and a plurality of conductive particles dispersed therein. The elastomeric carrier includes an electroactive polymer (EAP) configured to move between a first position and a second position in response to an electrical field. The CPI is configured to exhibit a first electrical resistance when the EAP is in the first position and a second electrical resistance when the EAP is in the second position. The apparatus further comprises one or more electrodes electrically coupled to the CPI. The electrodes are configured to generate the electrical field within the CPI. The apparatus further comprises one or more insulators coupled to the CPI. The one or more insulators are configured to constrain expansion of the CPI in at least one direction.

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