Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2007-06-19
2010-11-30
Nguyen, Donghai D. (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S025420, C174S260000, C361S763000, C438S239000
Reexamination Certificate
active
07841075
ABSTRACT:
Provided herein are devices comprising a printed wiring board that comprise, singulated capacitors fabricated from known good, thin-film, fired-on-foil capacitors. Provided are methods of incorporating the singulated capacitors into the build-up layers of a printed wiring board to minimize impedance. The singulated capacitors have a pitch that allows each power and ground terminal of an IC to be directly connected to a power and ground electrode, respectively, of its own singulated capacitor. Using a feedstock of known good, fired-on-foil capacitors allows for improved PWB yield.
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Hirata, Y., Nakano, H., & Shimada, Y. (Feb. 21, 2007) “Development of Novel Thin Material for Decoupling Capacitors Embedded in PWBs”, Proceedings of the Technical Conference, IPC Printed Circuits Expo, Session 22, Los Angeles.
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Amey, Jr. Daniel I.
Borland William
Dietz Karl H.
Erickson J. Stan
Palanduz Cengiz Ahmet
E. I. du Pont de Nemours and Company
Nguyen Donghai D.
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