Patent
1979-12-06
1982-03-09
James, Andrew J.
357 13, 357 56, 357 72, 357 75, 357 81, H01L 2332, H01L 2990, H01L 2906
Patent
active
043192653
ABSTRACT:
Disclosed is an array of avalanche diodes and its method of manufacture wh results in plural pairs of series connected mesa-etched avalanche (TRAPATT) diodes being selectively connected in parallel by metallized air bridges for increasing the impedance level and thereby the peak and average power level available from microwave oscillators and amplifiers configured therefrom. The various series connected diodes are placed in near proximity to respective neighboring diode pairs to reduce parasitics but at the same time the spacing is made sufficiently large to prevent thermal spreading of one diode pair to overlap that of the adjacent diode pair. The metallized air bridges in addition to providing a low inductance interconnection, provide an integrated heat capacitance which is necessary for high power operation.
REFERENCES:
patent: 2847623 (1958-08-01), Thornhill
patent: 3165678 (1965-01-01), Bernstein
patent: 3249827 (1966-05-01), Benda et al.
patent: 3263092 (1966-07-01), Knauss
patent: 3383760 (1968-05-01), Shwartzman
patent: 3619731 (1971-11-01), Baker
patent: 3953254 (1976-04-01), Valdman
patent: 4243894 (1981-01-01), Kuntner
Klatskin Jerome B.
Rosen Arye
Edelberg Nathan
James Andrew J.
Murray Jeremiah G.
Sachs Michael C.
The United States of America as represented by the Secretary of
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