发明授权
- 专利标题: Capacitance for decoupling intermediate level power rails
- 专利标题(中): 用于去耦中级电源轨的电容
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申请号: US11670969申请日: 2007-02-03
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公开(公告)号: US07692467B2公开(公告)日: 2010-04-06
- 发明人: Benjamin Beker
- 申请人: Benjamin Beker
- 申请人地址: US CA Sunnyvale
- 专利权人: Advanced Micro Devices, Inc.
- 当前专利权人: Advanced Micro Devices, Inc.
- 当前专利权人地址: US CA Sunnyvale
- 代理商 Timothy M. Honeycutt
- 主分类号: H03K5/08
- IPC分类号: H03K5/08
摘要:
Capacitive decoupling circuits and methods of making the same are disclosed. In one aspect, a method of manufacturing is provided that includes providing a semiconductor chip with a first power rail for a first no-load bias level and a ground rail. A first voltage divider is electrically coupled between the first power rail and the ground rail and has a midpoint node. A first pair of capacitors is electrically coupled between the first power rail, the midpoint node and the ground rail to provide capacitive decoupling for power delivered to the first power rail. A second power rail has a second no-load bias less than the first no-load bias. A second pair of capacitors is electrically coupled between the ground rail and the second power rail to provide capacitive decoupling for power delivered to the second power rail.
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