Low-capacitance photodiode utilizing vertical carrier confinement
    112.
    发明授权
    Low-capacitance photodiode utilizing vertical carrier confinement 有权
    低电容光电二极管利用垂直载流子限制

    公开(公告)号:US08716821B2

    公开(公告)日:2014-05-06

    申请号:US13767978

    申请日:2013-02-15

    Abstract: A semiconductor device contains a photodiode which includes a buried collection region formed by a bandgap well to vertically confine photo-generated minority carriers. the bandgap well has the same conductivity as the semiconductor material immediately above and below the bandgap well. A net average doping density in the bandgap well is at least a factor of ten less than net average doping densities immediately above and below the bandgap well. A node of the photodiode, either the anode or the cathode, is connected to the buried collection region to collect the minority carriers, the polarity of the node matches the polarity of the minority carriers. The photodiode node connected to the buried collection region occupies less lateral area than the lateral area of the buried collection region.

    Abstract translation: 半导体器件包括光电二极管,其包括由带隙阱形成的掩埋采集区域,以垂直地限制光产生的少数载流子。 带隙阱具有与带隙阱正上方和下方的半导体材料相同的导电性。 带隙阱中的净平均掺杂密度至少比带隙阱上方和下方的净平均掺杂密度小十倍。 光电二极管(阳极或阴极)的一个节点连接到埋藏采集区域以收集少数载流子,节点的极性与少数载流子的极性匹配。 连接到埋藏采集区的光电二极管节点占据比埋藏收集区域的侧向区域更小的横向面积。

    Hybrid component with silicon and wide bandgap semconductor material

    公开(公告)号:US12218235B2

    公开(公告)日:2025-02-04

    申请号:US17487149

    申请日:2021-09-28

    Abstract: A microelectronic device includes a hybrid component. The microelectronic device has a substrate including silicon semiconductor material. The hybrid component includes a silicon portion in the silicon, and a wide bandgap (WBG) structure on the silicon. The WBG structure includes a WBG semiconductor material having a bandgap energy greater than a bandgap energy of the silicon. The hybrid component has a first current terminal on the silicon, and a second current terminal on the WBG semiconductor structure. The microelectronic device may be formed by forming the silicon portion of the hybrid component in the silicon, and subsequently forming the WBG structure on the silicon.

    Isolation structure for IC with epi regions sharing the same tank

    公开(公告)号:US12205944B2

    公开(公告)日:2025-01-21

    申请号:US17887758

    申请日:2022-08-15

    Abstract: An ESD cell includes an n+ buried layer (NBL) within a p-epi layer on a substrate. An outer deep trench isolation ring (outer DT ring) includes dielectric sidewalls having a deep n-type diffusion (DEEPN diffusion) ring (DEEPN ring) contacting the dielectric sidewall extending downward to the NBL. The DEEPN ring defines an enclosed p-epi region. A plurality of inner DT structures are within the enclosed p-epi region having dielectric sidewalls and DEEPN diffusions contacting the dielectric sidewalls extending downward from the topside surface to the NBL. The inner DT structures have a sufficiently small spacing with one another so that adjacent DEEPN diffusion regions overlap to form continuous wall of n-type material extending from a first side to a second side of the outer DT ring dividing the enclosed p-epi region into a first and second p-epi region. The first and second p-epi region are connected by the NBL.

    Power Transistor IC with Thermocouple Having p-Thermopile and n-Thermopile

    公开(公告)号:US20230157175A1

    公开(公告)日:2023-05-18

    申请号:US17528990

    申请日:2021-11-17

    CPC classification number: H01L27/16 H01L35/32

    Abstract: Integrated circuit apparatus, and their manufacturing methods, including an integrated power transistor and thermocouple. The power transistor is constructed in a plurality of layers formed over a semiconductor substrate. The thermocouple includes a p-thermopile and an n-thermopile that are each electrically isolated from the power transistor and the semiconductor substrate while being sensitive to temperature differences within the IC resulting from operation of the power transistor. The p-thermopile includes a p-type thermoelectric body formed in a p-type one or more of the plurality of layers. The n-thermopile includes n-type thermoelectric body formed in an n-type one or more of the plurality of layers.

    Optical sensor with integrated pinhole

    公开(公告)号:US11563130B2

    公开(公告)日:2023-01-24

    申请号:US16867309

    申请日:2020-05-05

    Abstract: An optical sensor includes a semiconductor substrate having a first conductive type. The optical sensor further includes a photodiode disposed on the semiconductor substrate and a metal layer. The photodiode includes a first semiconductor layer having the first conductive type and a second semiconductor layer, formed on the first semiconductor layer, including a plurality of cathodes having a second conductive type. The first semiconductor layer is configured to collect photocurrent upon reception of incident light. The cathodes are configured to be electrically connected to the first semiconductor layer and the second semiconductor layer is configured to, based on the collected photocurrent, to track the incident light. The metal layer further includes a pinhole configured to collimate the incident light, and the plurality of cathodes form a rotational symmetry of order n with respect to an axis of the pinhole.

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