Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Patent
1988-04-12
1989-11-07
Pellinen, A. D.
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
29843, 357 70, 357 81, 361406, 361421, H05K 720
Patent
active
048796336
ABSTRACT:
An electric circuit assembly (10) is provided by a ceramic base substrate (14), a copper ground plane (20) directly bonded to the base substrate, an intermediate ceramic substrate (22) directly bonded to the ground plane, and a copper lead frame (24) having a pad portion (26) directly bonded to the intermediate substrate. The base substrate extends laterally beyond the ground plane and intermediate substrate. The lead frame has an extension portion (32) extending laterally beyond the intermediate substrate, ground plane and base substrate, and spaced above the base substrate by the thickness of the ground plane and intermediate substrate. The lead frame extension portion is bent upwardly from the pad portion along a bend line spaced laterally inwardly of the outer edge (18) of the base substrate.
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"Over 50 years of experience with the Direct Bond Copper process.", Tegmen Corp., 1201 East Fayette Street, Syracuse, New York 13210.
Pellinen A. D.
Thompson Gregory D.
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