Method of thermal balancing RF power transistor array
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United States of America Patent
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-
Jun 11, 1991
Grant Date -
N/A
app pub date -
May 4, 1990
filing date -
May 4, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Thermal balance in an array of RF transistor cells in which all transistors are connected in parallel is obtained by interconnecting the transistors to array contacts by means of discrete wire leads. The array is electrically tested and a temperature distribution in the array is obtained. Thereafter, the wire leads are varied in length and height above the plane of the array to improve temperature distribution during test. The steps are repeated as necessary to obtain a desired temperature balance in the array.
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