TRANSFORMERS BASED ON BURIED POWER RAIL TECHNOLOGY

    公开(公告)号:US20230197615A1

    公开(公告)日:2023-06-22

    申请号:US17557134

    申请日:2021-12-21

    CPC classification number: H01L23/5286 H01L23/645 H01L23/5226

    Abstract: IC devices including transformers that includes two electrically conductive layers are disclosed. An example IC device includes a transformer that includes a first coil, a second coil, and a magnetic core coupled to the two coils. The first coil includes a portion or the whole electrically conductive layers at the backside of a support structure. The second coil includes a portion or the whole electrically conductive layers at either the frontside or the backside of the support structure. The two coils may have a lateral coupling, vertical coupling, or other types of couplings. The transformer is coupled to a semiconductor device over or at least partially in the support structure. The semiconductor device may be at the frontside of the support structure. The transformer can be coupled to the semiconductor device by TSVs. The IC device may also include BPRs that facilitate backside power delivery to the semiconductor device.

    III-N DIODES WITH N-DOPED WELLS AND CAPPING LAYERS

    公开(公告)号:US20230068318A1

    公开(公告)日:2023-03-02

    申请号:US17459986

    申请日:2021-08-27

    Abstract: Disclosed herein are IC devices, packages, and device assemblies that include III-N diodes with n-doped wells and capping layers. An example IC device includes a support structure and a III-N layer, provided over a portion of the support structure, the III-N layer including an n-doped well of a III-N semiconductor material having n-type dopants with a dopant concentration of at least 5×1017 dopants per cubic centimeter. The IC device further includes a first and a second electrodes and at least one capping layer. The first electrode interfaces a first portion of the n-doped well. The capping layer interfaces a second portion of the n-doped well and includes a semiconductor material with a dopant concentration below 1017 dopants per cubic centimeter. The second electrode is provided so that the capping layer is between the second portion of the n-doped well and the second electrode.

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