Oscillators – Solid state active element oscillator – Significant distributed parameter resonator
Patent
1975-03-24
1976-10-12
Larkins, William D.
Oscillators
Solid state active element oscillator
Significant distributed parameter resonator
357 13, 357 15, 357 55, 357 56, H01L 2990
Patent
active
039861422
ABSTRACT:
A microwave semiconductor amplifier or oscillator system in which a semiconductor device has an avalanching region at a junction and a heat sink having a higher thermal conductivity than said avalanching region in close thermal contact with the said junction. The avalanching region has a width substantially less than 10 times the thickness of said avalanching region but a length substantially greater than said width. The heat sink is made substantially wider than that of the avalanching region so that heat generated in the avalanching region during operation of the system and moving into the heat sink will have a substantial component thereof moving parallel to the junction, thereby decreasing the thermal resistance between the heat source and the heat sink and hence permitting an increased power output from the system. The thermal resistance between the avalanching region and the heat sink is further reduced by the use of a Schottky type junction in which a thin layer of platinum is deposited on gallium arsenide N type semiconductor material and a gold heat sink is deposited on the platinum layer.
REFERENCES:
patent: 3483441 (1969-12-01), Hofflinger
patent: 3516017 (1970-06-01), Kaneko
patent: 3689993 (1972-09-01), Tolar
Kim et al., "GaAs Schottky Barrier...," Solid State Electron, Jan. 1970, pp. 53-56.
Lindley et al., "GaAs Schottky Barrier...," Applied Physics Letters, Mar. 15, 1969, pp. 197-199.
Bartlett Milton D.
Inge John R.
Larkins William D.
Pannone Joseph D.
Raytheon Company
LandOfFree
Avalanche semiconductor amplifier does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Avalanche semiconductor amplifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Avalanche semiconductor amplifier will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-946341