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US5198885A Ceramic base power package 失效
陶瓷基座电源封装

Ceramic base power package
摘要:
A high power, hermetic, low cost, high reliability package for electrical devices is described. The package includes in the preferred embodiment an aluminum nitride substrate, copper thick film ink screen printed and fired upon the substrate, a Kovar ring brazed to the copper thick film ink, a thermally dissipating device mounted, the device bonded to electrical feed-throughs that pass through the Kovar ring, and a cover bonded to said Kovar ring to form an additional part of the hermetic seal.
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