Invention Grant
- Patent Title: Structure for enhancing reference return current conduction
- Patent Title (中): 用于增强参考回流导通的结构
-
Application No.: US12641381Application Date: 2009-12-18
-
Publication No.: US08295058B2Publication Date: 2012-10-23
- Inventor: Joseph J. Cahill , Anand Haridass , Roger D. Weekly
- Applicant: Joseph J. Cahill , Anand Haridass , 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.; Diana R. Gerhardt
- Main IPC: H05K1/11
- IPC: H05K1/11 ; H05K7/14 ; H05K9/00

Abstract:
An apparatus is provided that comprises a plurality of signaling planes providing signal pathways and at least one internal reference plane providing either a voltage or a ground connection. The at least one internal reference plane are provided between at least two of the signaling planes. The apparatus further comprises a signal blind/buried via coupling a signal pathway of a first one of the at least two signaling planes with a signal pathway of a second one of the at least two signaling planes. The blind/buried via runs through the at least one internal reference plane. The apparatus also comprises at least one first conductive feature in the first one of the at least two signaling planes. The at least one first conductive feature is in close proximity to the signal blind/buried via and increases the capacitive coupling of currents in the reference planes of the apparatus.
Public/Granted literature
- US20110147068A1 Structure for Enhancing Reference Return Current Conduction Public/Granted day:2011-06-23
Information query