TY - JOUR
T1 - Thermalelectro-feedback model for multi-emitter finger power heterojunction bipolar transistor. Part I
T2 - Temperature profile
AU - Yarn, K. F.
AU - Wang, Yeong-Her
AU - Houng, Mau-phon
AU - Lew, B. K.
PY - 2006/7/1
Y1 - 2006/7/1
N2 - Poor thermal conductivity of GaAs, a self-heating phenomenon which results in the rapid rise of device temperature, is the major factor that limits and even degrades the electrical performance of GaAs-based heterojunction bipolar transistor (HBT) operated at high power densities. On the basis of this consideration, a numerical model is presented to study the interaction mechanism between the thermal and electrical behavior of AlGaAs/GaAs HBT with multiple-emitter fingers. The model mainly comprises a numerical model applicable for multi-finger HBT that solves the three-dimensional heat transfer equation. The device design parameters that influence the temperature profile and current distribution of the device are identified, and optimization concerning the device performance is made.
AB - Poor thermal conductivity of GaAs, a self-heating phenomenon which results in the rapid rise of device temperature, is the major factor that limits and even degrades the electrical performance of GaAs-based heterojunction bipolar transistor (HBT) operated at high power densities. On the basis of this consideration, a numerical model is presented to study the interaction mechanism between the thermal and electrical behavior of AlGaAs/GaAs HBT with multiple-emitter fingers. The model mainly comprises a numerical model applicable for multi-finger HBT that solves the three-dimensional heat transfer equation. The device design parameters that influence the temperature profile and current distribution of the device are identified, and optimization concerning the device performance is made.
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U2 - 10.1080/08827510410001694932
DO - 10.1080/08827510410001694932
M3 - Article
AN - SCOPUS:33744994790
VL - 93
SP - 439
EP - 455
JO - International Journal of Electronics
JF - International Journal of Electronics
SN - 0020-7217
IS - 7
ER -