- 专利标题: PCB optical isolation by nonuniform catch pad stack
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申请号: US15613580申请日: 2017-06-05
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公开(公告)号: US10178764B2公开(公告)日: 2019-01-08
- 发明人: Augusto Tazzoli , Blaise Gassend
- 申请人: Waymo LLC
- 申请人地址: US CA Mountain View
- 专利权人: Waymo LLC
- 当前专利权人: Waymo LLC
- 当前专利权人地址: US CA Mountain View
- 代理机构: McDonnell Boehnen Hulbert & Berghoff LLP
- 主分类号: H01P1/20
- IPC分类号: H01P1/20 ; H05K1/02 ; H05K1/11 ; G01S17/93
摘要:
A Printed Circuit Board (PCB) includes a via extending through at least one layer of the PCB. The PCB may also include a first catch pad connected to the via and located within a first metal layer of the PCB. The first catch pad may have a first size. The PCB may further include a second catch pad connected to the via and located within a second metal layer of the PCB. The second catch pad may have a second size greater than the first size. The second catch pad may overlap horizontally with a portion of a metallic feature in the first metal layer to obstruct light incident on a first side of the PCB from transmission to a second side of the PCB through a region of dielectric material near the via.
公开/授权文献
- US20180352651A1 PCB OPTICAL ISOLATION BY NONUNIFORM CATCH PAD STACK 公开/授权日:2018-12-06
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