发明授权
- 专利标题： Digital noise reduction in integrated circuits and circuit assemblies
- 专利标题（中）： 集成电路和电路组件中的数字降噪
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申请号： US293510申请日： 1999-04-15
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公开(公告)号： US6121827A公开(公告)日： 2000-09-19
- 发明人: Ramin Khoini-Poorfard , Lysander B. Lim
- 申请人： Ramin Khoini-Poorfard , Lysander B. Lim
- 申请人地址： NJ Murray Hill
- 专利权人： Lucent Technologies, Inc.
- 当前专利权人： Lucent Technologies, Inc.
- 当前专利权人地址： NJ Murray Hill
- 主分类号： H01L23/50
- IPC分类号： H01L23/50 ; H01L25/00
摘要：
A mixed signal integrated circuit board having decreased sensitivity of analog circuitry to digital circuitry noise is disclosed. In the mixed-signal integrated board of the present invention, a new (second) analog ground is created. This new analog ground is not limited by the manufacturing specification of connectivity to the substrate of the circuit board and is thereby free of transient noise generated by digital components on the board. In a mixed-signal integrated circuit board of the present invention, the new analog ground becomes the preferred ground and is utilized in many sensitive analog applications including voltage and current measurements. The new analog ground is easy to create as it does not involved complicated circuitry. The new analog ground may be created even after the initial circuit schematics has been created.
公开/授权文献
- US5650662A Direct bonded heat spreader 公开/授权日：1997-07-22
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