Seyfarth Shaw LLP
Quantum well thermal sensing for power amplifier
A heterojunction bipolar transistor (HBT) thermal sensing device includes a well structure as a layer between an HBT sub-collector and an HBT substrate. In one instance, the HBT sub-collector contacts an emitter, a collector, and a base of the HBT thermal sensing device. The HBT thermal sensing device also includes a first side electrode in electrical contact with the quantum well structure and a second side electrode in electrical contact with the quantum well structure.
QUALCOMM Incorporated
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Xia Gengming Bin
Li Tao Yang