Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2006-09-05
2006-09-05
Trinh, Minh (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S825000, C029S846000, C029S852000, C029S025030, C361S763000
Reexamination Certificate
active
07100277
ABSTRACT:
A method of forming printed wiring boards having embedded thick-film capacitors includes covering capacitor layers with a protective coating prior to etching to prevent etching solutions from contacting with and damaging the capacitor layers and forming vias directly between the capacitor electrodes and the board circuitry.
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Borland William J.
Ferguson Saul
Pyada Hena
E. I. du Pont de Nemours and Company
Trinh Minh
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