Invention Grant
US07430800B2 Apparatus and method for far end noise reduction using capacitive cancellation by offset wiring
有权
通过偏移布线使用电容消除进行远端降噪的装置和方法
- Patent Title: Apparatus and method for far end noise reduction using capacitive cancellation by offset wiring
- Patent Title (中): 通过偏移布线使用电容消除进行远端降噪的装置和方法
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Application No.: US11146441Application Date: 2005-06-06
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Publication No.: US07430800B2Publication Date: 2008-10-07
- Inventor: Anand Haridass , Andreas Huber , Bao G. Truong , Roger D. Weekly
- Applicant: Anand Haridass , Andreas Huber , Bao G. Truong , Roger D. Weekly
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Stephen J. Walder, Jr.; Casimer K. Salys
- Main IPC: H05K3/02
- IPC: H05K3/02 ; H05K3/10

Abstract:
A mechanism for reducing the vertical cross-talk interference experienced in signal lines due to the inductive affects from signal lines in other signal planes of a multi-layer ceramic package is provided. With the apparatus and method, one or more vias in the multi-layer ceramic package may be removed from the structure to provide area through which an offset of the signal lines may pass. Because these offsets of the signal lines exist in parallel planes above or below each other, with no ground lines existing directly between these signal line offsets, a capacitive cross-talk is introduced into the signal lines. This capacitive cross-talk is opposite in polarity to the inductive cross-talk already experienced by the signal lines. As a result, the capacitive cross-talk tends to negate or reduce the inductive cross-talk thereby reducing the far end noise in the signal line.
Public/Granted literature
- US20060272851A1 Apparatus and method for far end noise reduction using capacitive cancellation by offset wiring Public/Granted day:2006-12-07
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