Active solid-state devices (e.g. – transistors – solid-state diode – Housing or package – Multiple housings
Reexamination Certificate
2008-01-15
2008-01-15
Vu, Hung (Department: 2811)
Active solid-state devices (e.g., transistors, solid-state diode
Housing or package
Multiple housings
C257S723000
Reexamination Certificate
active
07319267
ABSTRACT:
In a prior art, there has been a method in which a power supply line of an output buffer and that of a control circuit are independently provided so that the power supply noise occurring in the control circuit will not affect the output buffer. However, this method has had the problems that it increases both the number of power supply/grounding pins and power feed line inductance.The present invention provides a technique which, without causing the above two problems, i.e., (1) increased number of power supply/grounding pins and (2) increased power feed line inductance, prevents the noise causing a problem in a control circuit, from becoming routed around and induced into an output buffer. More specifically, the above can be realized by using either of two methods: (A) providing an on-chip bypass capacitor for the control circuit and isolating a power feed route of the control circuit from that of the output buffer in an AC-like manner, or (B) designing electrical parameters (inserting resistors) such that the oscillation mode of any electrical parameter noise induced into the power feed routes will change to overdamping.
REFERENCES:
patent: 6833626 (2004-12-01), Kajiwara et al.
patent: 6914259 (2005-07-01), Sakiyama et al.
patent: 6936911 (2005-08-01), Horimoto
patent: 7145233 (2006-12-01), Vinson et al.
patent: 5-29531 (1993-02-01), None
patent: 6-140215 (1994-05-01), None
Hirose Yukitoshi
Nishio Yoji
Osaka Hideki
Uematsu Yutaka
Elpida Memory Inc.
Mattingly ,Stanger ,Malur & Brundidge, P.C.
Vu Hung
LandOfFree
Semiconductor device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductor device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2808314