H - Electricity – 05 – K
Patent
H - Electricity
05
K
333/101, 356/8
H05K 1/02 (2006.01) H01L 23/66 (2006.01) H05K 1/11 (2006.01) H05K 3/34 (2006.01)
Patent
CA 1240373
-9- ABSTRACT A surface mountable microwave IC package uses printed transmission lines on a printed circuit board in lieu of plumbing between milled packages. A backside co-planar waveguide is connected to a topside microstrip line by a through-hole in a carrier substrate. To compensate for inductance added by the hole and transmission line ends, a gap is adjusted to provide compensation capacitance. Hermeticity is assured by brazing lead frame over the through-hole and using a solder sealed lid. The lid provides both hermeticity and shielding.
502853
Kirby Eades Gale Baker
Tektronix Inc.
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