نتایج جستجو برای: heterojunction bipolar transistor
تعداد نتایج: 61666 فیلتر نتایج به سال:
This paper presents a core chip design in SiGe Heterojunction Bipolar Transistor base for X-band phased array Transmit/Receive (T/R) module. Usually phase shifters for X-band application were done by using of GaAs technique. Some commercial GaAs products for this type of integrate circuits are considered. The structure of the Core Chip for Phased Array T/R Modules is presented. Methods for the ...
Metamorphic buffers ~M-buffers! consisting of graded InAlAs or bulk InP were employed for the production of InP-based epiwafers on GaAs substrates by molecular-beam epitaxy. The graded InAlAs is the standard for production metamorphic high electron mobility transistors ~M-HEMTs!, while the bulk InP offers superior thermal properties for higher current density circuits. The surface morphology an...
In this paper, we present an analytical model to analysis the kirk effect onstatic and dynamic responses of quantum well heterojunction bipolar transistor lasers(HBTLs). Our analysis is based on solving the kirk current equation, continuityequation and rate equations of HBTL. We compare the performance (current gain,output photon number and small signal modulation bandwi...
Relaxed SiGe attracted much interest due to the applications for strained Si/SiGe high electron mobility transistor, metal-oxide-semiconductor field-effect transistor, heterojunction bipolar transistor, and other devices. High-quality relaxed SiGe templates, especially those with a low threading dislocation density and smooth surface, are critical for device performance. In this work, SiGe film...
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