发明授权
- 专利标题: Bypass techniques to protect noise sensitive circuits within integrated circuit chips
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申请号: US15367560申请日: 2016-12-02
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公开(公告)号: US09960756B1公开(公告)日: 2018-05-01
- 发明人: Navin Harwalkar
- 申请人: Silicon Laboratories Inc.
- 申请人地址: US TX Austin
- 专利权人: Silicon Laboratories Inc.
- 当前专利权人: Silicon Laboratories Inc.
- 当前专利权人地址: US TX Austin
- 代理机构: Egan Peterman Enders Huston
- 主分类号: H03K5/1252
- IPC分类号: H03K5/1252 ; H05K1/02 ; H03F3/195 ; H01L23/66
摘要:
Bypass techniques are provided herein to protect noise sensitive circuits from both internal and external noise sources. According to one embodiment, an integrated circuit (IC) chip may include a noise sensitive circuit coupled between a power supply pad and a first ground pad of the IC chip. In order to protect the first ground pad of the noise sensitive circuit, two distinct bypass paths are provided to route noise current around the noise sensitive circuit. Each bypass path terminates in its own ground pad (e.g., a second ground pad and third ground pad), which is separate from the first ground pad of the noise sensitive circuit.
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