Darlington tube with high reliability for selsyn module
A self-aligning machine, Darlington tube technology, applied in the direction of electrical components, electrical solid devices, circuits, etc., can solve the problem of Darlington high-power tube electrical performance and reliability can not adapt to other problems, to improve switching parameters and The effect of secondary breakdown resistance, improved sealing performance and reliability, and improved burnout resistance
Inactive Publication Date: 2010-04-21
无锡固电半导体股份有限公司
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Problems solved by technology
[0003] In order to meet the functional requirements of the general army-level auto-alignment machine module for the key component MJ10012 Darlington high-power tube, the electrical performance and reliability of the general Darlington high-power tube are far from being able to adapt, and it is necessary to invent and develop a current Large, high withstand voltage, high output power, strong burning resistance, airtightness test to meet the national military standard, high reliability and high power Darlington tube with stable electrical performance parameters at low temperature, normal temperature and high temperature
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[0039] As shown in the figure: the transistor includes a base 18 and a die 20, and the die 20 includes a base region 3 of a previous transistor and a base region of a subsequent transistor formed in the high-resistance second epitaxial layer 4 of the collector region 15. There is a front-stage transistor emitter area 16 in the front-stage transistor base area 3, a rear-stage transistor emitter area 2 in the rear-stage transistor base area 15, and a rear-stage transistor base area 15 next to the rear-stage transistor emitter area 2 There is a voltage guard ring 5, on the same side of the high-resistance second epitaxial layer 4 of the collector region, the base region 3 of the previous transistor and the base region 15 of the transistor of the subsequent stage, and the emitter region 16 of the transistor of the former stage and the emitter region 2 of the transistor of the latter stage A protective silicon dioxide film 6 is provided on the surface; and the base aluminum layer 7 ...
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The invention belongs to the technical field of semiconductor transistors and particularly relates to a high reliability Darlington transistor used for an autosyn module and a making method thereof. According to the technical proposal provided by the invention, the tube core comprises a preceding stage transistor base region and a backward stage transistor base region formed in a high resistance second epitaxial layer of a collecting zone, and the preceding stage transistor base region is internally provided with a preceding stage transistor emitting area, the backward stage transistor base region is internally provided with a backward stage transistor emitting area. The technical proposal is characterized in that the backward stage transistor base region beside the backward stage transistor emitting area is internally provided with a voltage protection ring, the surfaces of the same side of the high resistance second epitaxial layer of the collecting zone, the preceding stage transistor base region and the backward stage transistor base region, as well as the same side of the preceding stage transistor emitting area and the backward stage transistor emitting area, are provided with silicon dioxide films playing a role in protection; and a part corresponding to the preceding stage transistor base region is provided with a base aluminium layer of a base metal connecting wire above the silicon dioxide films. The product is characterized by big output current, high pressurization, stable output power, strong burn resistance, good sealing property, and the like.
Description
technical field [0001] The invention belongs to the technical field of semiconductor transistors, and in particular relates to a high-reliability Darlington tube for an auto-alignment machine module. Background technique [0002] In the weapon equipment industry and industrial automation industry, HSBA5000 series high-power synchro / resolver amplifiers are mainly used in training simulators, remote control displays, artillery ignition control and naval relay systems to drive the normal work of the azimuth and angle motors. It is a compact modular structure, the required input signal is a 90V synchro signal or a 6.8V resolver signal, and its output signal is a high-power 90V synchro signal. The module is driven by the power provided by the reference source, with full protection functions: current limiting protection function to prevent damage caused by overload or short circuit; voltage clamp protection to prevent damage caused by reference source and load transient; overheat ...
Claims
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IPC IPC(8): H01L27/02H01L21/52
Inventor 龚利汀钱晓平龚利贞
Owner 无锡固电半导体股份有限公司