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    Self-Limiting Electrical Triggering for Initiating Fracture of Frangible Glass
    13.
    发明申请
    Self-Limiting Electrical Triggering for Initiating Fracture of Frangible Glass 有权

    公开(公告)号：US20180033577A1

    公开(公告)日：2018-02-01

    申请号：US15220164

    申请日：2016-07-26

    Applicant: Palo Alto Research Center Incorporated

    Inventor： Gregory Whiting ,  Scott J. Limb ,  Christopher L. Chua ,  Sean Garner ,  Sylvia J. Smullin ,  Qian Wang ,  Rene A. Lujan

    IPC: H01H85/00

    CPC classification number: H01H85/0052 ,  H01L23/57 ,  H03K19/17768

    Abstract: A transient electronic device includes electronic elements (e.g., an SOI- or chip-based IC) and a trigger mechanism disposed on a frangible glass substrate. The trigger mechanism includes a switch that initiates a large trigger current through a self-limiting resistive element in response to a received trigger signal. The self-limiting resistive element includes a resistor portion that generates heat in response to the trigger current, thereby rapidly increasing the temperature of a localized (small) region of the frangible glass substrate, and a current limiting portion (e.g., a fuse) that self-limits (terminates) the trigger current after a predetermined amount of time, causing the localized region to rapidly cool down. The frangible glass substrate is engineered such that a stress profile produced by the rapid heating/cooling of the localized region generates an initial fracture force that subsequently propagates throughout the glass substrate, whereby sufficient potential energy is released to powderize the electronic elements.

    Solar cell texturing
    17.
    发明授权
    Solar cell texturing 有权
    太阳能电池纹理

    公开(公告)号：US08951825B1

    公开(公告)日：2015-02-10

    申请号：US14023423

    申请日：2013-09-10

    Applicant: Palo Alto Research Center Incorporated

    Inventor： Scott J. H. Limb ,  Dirk DeBruyker ,  Sean Garner

    IPC: H01L21/00 ,  H01L31/18 ,  H01L21/308

    CPC classification number: H01L31/18 ,  H01L21/308 ,  H01L31/02363 ,  H01L31/1804 ,  Y02E10/52 ,  Y02E10/547 ,  Y02P70/521

    Abstract: Multicrystalline silicon (mc-Si) solar cells having patterned light trapping structures (e.g., pyramid or trough features) are generated by printing a liquid mask material from an array of closely-spaced parallel elongated conduits such that portions of the mc-Si wafer are exposed through openings defined between the printed mask features. Closely spaced mask pattern features are achieved using an array of conduits (e.g., micro-springs or straight polyimide cantilevers), where each conduit includes a slit-type, tube-type or ridge/valley-type liquid guiding channel that extends between a fixed base end and a tip end of the conduit such that mask material supplied from a reservoir is precisely ejected from the tip onto the mc-Si wafer. The exposed planar surface portions are then etched to form the desired patterned light trapping structures (e.g., trough structures).

    Abstract translation: 通过从紧密间隔开的平行细长导管的阵列印刷液体掩模材料来产生具有图案化的光捕获结构（例如，金字塔或槽特征）的多晶硅（mc-Si）太阳能电池，使得mc-Si晶片的部分 通过印刷的掩模特征之间限定的开口露出。 使用导管阵列（例如微弹簧或直接聚酰亚胺悬臂）实现紧密间隔的掩模图案特征，其中每个导管包括狭缝型，管型或脊/谷型液体引导通道，其在固定 基端和管道的末端，使得从储存器供应的掩模材料从尖端精确地喷射到mc-Si晶片上。 然后对暴露的平面表面部分进行蚀刻以形成所需的图案化光捕获结构（例如槽结构）。

    Self-Limiting Electrical Triggering for Initiating Fracture of Frangible Glass
    19.
    发明申请
    Self-Limiting Electrical Triggering for Initiating Fracture of Frangible Glass 审中-公开

    公开(公告)号：US20180330907A1

    公开(公告)日：2018-11-15

    申请号：US16033783

    申请日：2018-07-12

    Applicant: Palo Alto Research Center Incorporated

    Inventor： Gregory Whiting ,  Scott J. Limb ,  Christopher L. Chua ,  Sean Garner ,  Sylvia J. Smullin ,  Qian Wang ,  Rene A. Lujan

    IPC: H01H85/00 ,  H03K19/177 ,  H01L23/00

    CPC classification number: H01H85/0052 ,  H01L21/78 ,  H01L23/57 ,  H03K19/17768

    Abstract: A transient electronic device includes electronic elements (e.g., an SOI- or chip-based IC) and a trigger mechanism disposed on a frangible glass substrate. The trigger mechanism includes a switch that initiates a large trigger current through a self-limiting resistive element in response to a received trigger signal. The self-limiting resistive element includes a resistor portion that generates heat in response to the trigger current, thereby rapidly increasing the temperature of a localized (small) region of the frangible glass substrate, and a current limiting portion (e.g., a fuse) that self-limits (terminates) the trigger current after a predetermined amount of time, causing the localized region to rapidly cool down. The frangible glass substrate is engineered such that a stress profile produced by the rapid heating/cooling of the localized region generates an initial fracture force that subsequently propagates throughout the glass substrate, whereby sufficient potential energy is released to powderize the electronic elements.

    Self-limiting electrical triggering for initiating fracture of frangible glass
    20.
    发明授权
    Self-limiting electrical triggering for initiating fracture of frangible glass 有权

    公开(公告)号：US10026579B2

    公开(公告)日：2018-07-17

    申请号：US15220164

    申请日：2016-07-26

    Applicant: Palo Alto Research Center Incorporated

    Inventor： Gregory Whiting ,  Scott J. Limb ,  Christopher L. Chua ,  Sean Garner ,  Sylvia J. Smullin ,  Qian Wang ,  Rene A. Lujan

    IPC: H01H71/00 ,  H01H61/00 ,  H01H85/00

    Abstract: A transient electronic device includes electronic elements (e.g., an SOI- or chip-based IC) and a trigger mechanism disposed on a frangible glass substrate. The trigger mechanism includes a switch that initiates a large trigger current through a self-limiting resistive element in response to a received trigger signal. The self-limiting resistive element includes a resistor portion that generates heat in response to the trigger current, thereby rapidly increasing the temperature of a localized (small) region of the frangible glass substrate, and a current limiting portion (e.g., a fuse) that self-limits (terminates) the trigger current after a predetermined amount of time, causing the localized region to rapidly cool down. The frangible glass substrate is engineered such that a stress profile produced by the rapid heating/cooling of the localized region generates an initial fracture force that subsequently propagates throughout the glass substrate, whereby sufficient potential energy is released to powderize the electronic elements.

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