Active solid-state devices (e.g. – transistors – solid-state diode – Housing or package – For high frequency device
Reexamination Certificate
2008-05-13
2008-05-13
Estrada, Michelle (Department: 2823)
Active solid-state devices (e.g., transistors, solid-state diode
Housing or package
For high frequency device
C257SE21001, C029S025010
Reexamination Certificate
active
07372149
ABSTRACT:
A high frequency semiconductor apparatus is provided which prevents characteristics of a high frequency semiconductor element from being deteriorated so that the high frequency semiconductor element can be made to operate stably. The high frequency semiconductor apparatus is so configured that heat generated by a high frequency semiconductor element is sequentially conducted through a grounding via hole to a first ground layer, a first via hole, a first ground sublayer, a bonding material layer, a second ground layer, a second via hole, and a third ground layer.
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Suematsu Eiji
Yamamoto Makoto
Birch & Stewart Kolasch & Birch, LLP
Estrada Michelle
Sharp Kabushiki Kaisha
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