SEMICONDUCTOR LASER DEVICE,申请号JP19910291215-传众专利搜索

首页产品黄页商标征信

会员服务注册登录

法人/股东/高管

发明名称	SEMICONDUCTOR LASER DEVICE
摘要	PURPOSE:To restrain the variation in the high-frequency characteristics by a method wherein the inner sidewalls of an L-type heat sink are brought into contact with the surface and the side of a semiconductor laser mounted substrate, and the side is bonded to the heat sink to be fixed so that the bottom surface of the substrate and the heat sink may be almost flush with each other. CONSTITUTION:The inner sidewall surface of an L-type heat sink 3 is brought into contact with the non-metallized region on the surface of a substrate 2 while the wall surface perpendicular to said region is fixed to the metallized side of the substrate 2 by bonding agent 15 or resistance welding etc. The length of the heat sink 3 is specified so that the bottom surfaces of the heat sink 3 and the semiconductor laser mounted substrate 2 may be almost flush with each other. Next, the lower surface electrode of the semiconductor laser 1 is brought into contact with metallized part on the surface of the substrate 2 to be aligned with each other and then fixed using a solder 12 next, the upper surface electrode of the semiconductor laser 1 is wired to the connecting surface 9 of the heat sink 3 using a wire 4. Accordingly, the dispersion in the level discrepancy I between the surface of the semiconductor laser 1 and the connecting surface 9 of the heat sink 3 can be restrained.
申请公布号	JPH05129732(A)	申请公布日期	1993.05.25
申请号	JP19910291215	申请日期	1991.11.07
申请人	HITACHI LTD	发明人	YAGYU YASUTOSHI;SHIMAOKA MAKOTO;FUKUDA KAZUYUKI;KUMAZAWA TETSUO
分类号	H01L23/12;H01L23/36;H01S5/00	主分类号	H01L23/12
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Object scene detecting device for use in guided missile, has separation lens comprising prism coupled with optical fibers that are optically connected with emitter unit and detector unit, respectively

Alignment drive especially for solar panel has a main support universal joint and with two linear drives each between two universal joints

Flat structure, particularly mat, film, cover, curtain sun or light protection or decoration and for carbon dioxide decomposition, has carrier, growth matrix and biological material, which is selected from group of plant seeds

Method for decrypting multiple services in different transport streams, involves connecting two common-interface conditional access module on two common-interfaces, fixed to digital video broadcast receiver

Jalousie and roller blind, particularly in windows and balcony doors, predominantly in building exterior walls for shading, has vertical or horizontal rotary blades, and is internally or externally coated with photovoltaic cell

Transmitted light refractometer for use in e.g. foodstuff industry, for e.g. on-line analysis, has deflection lens deflecting parallel beam of rays back to irradiating side by window, process fluid and measuring prism i.e. biprism

Print image information producing method, involves converting sheet imaging data into portable data format and is compared with portable data format reference file and providing sheet imaging data with specific geometric resolution

Pipe e.g. water pipe, clamp for use at wall or ceiling of building, has fastening element attached to clamping body and moving limited piece along clamping body

Object position determining method for use in two-dimensional detection region, involves performing determination of object position at detection region in evaluation unit based on measuring signals of temporal triangular light sensors

Rear shelf for motor vehicle, has additional functional part i.e. retaining pins, arranged at plate-shaped base body, where functional part along with body is formed to be one-piece as injection molding part from polypropylene wood mixture

Portable electronic device e.g. laptop, protecting device, has acoustic microphone and acceleration sensor, where control signal output is provided to electronic device to initiate safety function depending microphone and sensor signals

Hyaluronate lyase with a histidine tag e.g. useful in pharmaceutical formulations and medical products

Coordinate measuring device for measuring device-under-test i.e. large workpiece, has portal movable in direction against object table and comprising frame part under object table, where portal forms closed frame using frame part

Direct current motor speed controlling method for e.g. automobile, involves limiting electrical power, where power is moved into winding provided in region by FET that is operated at resistance region

Hydraulic power amplifier for use in intake manifold of internal combustion engine, has return valve for allowing backflow of control fluid from control valve independent of pressure in supply line or closing supply line

Drive shaft for transmission of driving power in vehicle, has bellow with wave parts serving as securing unit, where edges of securing unit cooperate with wave parts, and bellow moves at edge in defined measure related to wave part

Air spinning machine, has flat spring provided on clamp, for operating air spinning nozzle, where clamp is fixable in presettable rotational position by flat spring and positionable in operating position at even surface of spacer

Personal protection device for e.g. passenger car, has microcontroller generating control signal to control actuator for coupling vehicle wheel to longitudinal structure to allow collision signal transmission and kinetic energy reduction

Web-fed rotary printing press i.e. gravure printing press, for half-wide paper web, has gravure units printing half-wide paper web, and turning bar device provided for shifting and turning web between face and reverse printing

Valve-controlled hydraulic machine i.e. hydraulic pump, for use as e.g. axial-piston motor, has passive displacement unit assigned to actively controllable displacement unit and includes suction and pressure valves