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1. 发明专利

JPS5491247A CONNECTION METHOD OF LIGHT EMITTING DIODE AND OPTICAL FIBER 失效
公开(公告)号：JPS5491247A
公开(公告)日：1979-07-19
申请号：JP9954078
申请日：1978-08-17
申请人： NIPPON TELEGRAPH & TELEPHONE , NIPPON ELECTRIC CO
发明人： IWANE GANZOU , FURUKAWA YOSHITAKA , NAKASHIMA MASATO
IPC分类号： G02B6/42 , H01L33/48
摘要： PURPOSE:To facilitate manufacture and connecting operation and increase the light driving efficiency, by using columnar focusing optical transmission body having refractive index distribution which reduces in proportion to the square of the distance from the central axis in a sectional area vertical to the central axis, as the light focusing body. CONSTITUTION:The length and refractive index of a light focusing body 7 are so designed to be equivalent to the action with respect to refraction when light passes through a light focusing body composed of homogenous glass in hemispherical, spherical or aspherical shape, and the light focusing body 7 is adhered to the output end face by means of transparent adhesive 5''' such as lens bond. When adhering, the central axis of the light focusing body 7 is made to coincide with the central axis of LED 1''', and an optical fiber is adhered to the other end of the light focusing body with transparent adhesive similarly, so that the central axis thereof may coincide with the central axis of the light focusing body. Thus, the manufacture and connecting operation are greatly facilitated, and the light driving efficiency to the fiber may be increased.

2. 发明专利

JPS5637656A AIRTIGHT CONTAINER WITH LIGHT TRANSMISSION OPENING 失效
公开(公告)号：JPS5637656A
公开(公告)日：1981-04-11
申请号：JP11332779
申请日：1979-09-04
申请人： NIPPON ELECTRIC CO
发明人： NAKASHIMA MASATO , ISHIDA AKIRA
IPC分类号： H01L23/02 , H01L31/0203
摘要： PURPOSE:To avoid the decrease is light transmission performance of an airtight container with a light transmission opening without coating a low melting point glass directly on when opening by interposing a ring-like spacer coated with a low melting point glass therebetween the securing a semiconductor element for emitting a light and for receiving a light on a substrate and forming the opening at an interval thereon. CONSTITUTION:A photosemiconductor 8 is secured to the central portion on a planar ceramic substrate 4 formed with a metallized wire 6 on the periphery thereof while exposing the central portion thereof with an low melting point solder such as an AuSi or the like or Ag paste. Then, electrodes fromed thereon are connected through fine wires made of Au, Al or the like to the wire 6, and external lead wires 7 are led from the wires 6. When a planar light transmission opening 5 made of glass, saphhire, quarts or the like is confronted thereafter with the photosemiconductor 8, a ring-shaped ceramic support 8 having low metling point glass-coated layers 2, 3 on each of both the front surface and the back surface of a circular or rectangular shape is fixedly disposed between the wire 6 and the opening 5.

3. 发明专利

JPS55153389A SEMICONDUCTOR LASER DEVICE 失效
公开(公告)号：JPS55153389A
公开(公告)日：1980-11-29
申请号：JP6200679
申请日：1979-05-18
申请人： NIPPON ELECTRIC CO
发明人： NAKASHIMA MASATO
IPC分类号： H01L29/43 , H01L21/28 , H01S5/00 , H01S5/024
摘要： PURPOSE:To obtain a highly reliable device capable of withstanding high temperature by the heat welding technique that metals joint together under the mechanical pressure at a high temperature. CONSTITUTION:AlGaAs undergoes the multi-layer epitaxial growth to form a semiconductor laser 1 with a double heterostructure. To dissipate the heat on an active layer 5 as a thermal surface, the laser is bonded on a diamond heat sink 2 with p side downward. The highly adhesive first metal layers 3, 3' and 3'' including Ti, Zr, Hf, Cr, Mo and W is fomed at the thickness of about 0.01-0.1mum and highly conductive and malleable second metal layers 4, 4' and 4'' including Au, Ag, Cu and Al is evaporated under vacuum on the first metal layers at the thickness of about 1-5mum. Then, the pressure is applied on the laser above the specified level to joint the components by the heat welding while it is maintained above the specified temperature. Thus, a highly reliable semiconductor laser device withstanding high temperature can be produced.

4. 发明专利

JPS53108794A PHOTO DETECTOR 失效
公开(公告)号：JPS53108794A
公开(公告)日：1978-09-21
申请号：JP2363577
申请日：1977-03-04
申请人： NIPPON ELECTRIC CO
发明人： NAKASHIMA MASATO
IPC分类号： G01J1/02 , G01J1/42 , G02B6/42 , G02F2/00 , H01L31/02 , H01L31/0232 , H01L31/10
摘要： PURPOSE:To couple an optical fiber and a photo detector at low loss by providing a recessed hole of a semiconductor substrate and a PN junction selectively formed in the region including the circumference of said hole.

5. 发明专利

JPS57186720A PROTECTING MECHANISM FOR OPTICAL FIBER BONDING PART 失效
公开(公告)号：JPS57186720A
公开(公告)日：1982-11-17
申请号：JP7160681
申请日：1981-05-13
申请人： NIPPON ELECTRIC CO
发明人： NAKASHIMA MASATO
IPC分类号： G02B6/24 , G02B6/38
摘要： PURPOSE:To obtain mechanical strength by covering a soft material for the connection terminal of a fiber with a hard material. CONSTITUTION:A soft coating 2 covering an optical fiber wire 1 is removed at the tip part of the wire, which is inserted into a terminal-holding member consisting of a thin glass pipe 3 and a holding metallic fixture 4 to achieve the connection of a fiber connection terminal, which is covered with a soft tube 5 of an leastic material like rubber and a metallic tube over both the soft coating 2 and holding metallic fixture 4. The metallic pipe 6 prevents external force from being applied directly to the connection terminal part 7, and the soft tube 5 absorbs and reduce remote force, so the mechanical strength of the connected terminal is increased, preventing a breaking accident.

6. 发明专利

JPS5785276A MEASURING METHOD FOR THERMAL RESISTANCE OF SEMICONDUCTOR LASER 失效
公开(公告)号：JPS5785276A
公开(公告)日：1982-05-27
申请号：JP16152080
申请日：1980-11-17
申请人： NIPPON ELECTRIC CO
发明人： NAKASHIMA MASATO , SEKIDO KENJI
IPC分类号： G01N25/18 , H01L21/66 , H01S5/00 , H01S5/042
摘要： PURPOSE:To measure the thermal resistance accurately by substantially measuring the value of a temperature coefficient at every laser to be measured and fixing the magnitude of bias currents at predetermined value. CONSTITUTION:DC bias currents IO are applied to the semiconductor laser to be measured 1 by means of a DC power supply, and power PO consumed at the laser 1 at that time, the value QO of a temperature parameter of the laser 1 and the temperature TCO of a case are measured. Pulse bias currents having IO peak value and a d duty cycle are applied by means of a pulse power supply 11, and the quantity of change DELTAPO of the power PO consumed at the laser 1 at that time and the quantity DELTATC of change of the case temperature TCO of the laser 1 required for equalizing the value of a temperature sensing parameter with the original value QO by adding an external heat source are measured. Accordingly, the thermal resistance Rth of the laser 1 is given DELTATC/DELTAPO.

7. 发明专利

JPS5793590A OPTICAL FIBER COUPLING SEMICONDUCTOR DEVICE 失效
公开(公告)号：JPS5793590A
公开(公告)日：1982-06-10
申请号：JP17042280
申请日：1980-12-03
申请人： NIPPON ELECTRIC CO
发明人： NAKASHIMA MASATO
IPC分类号： G02B6/42 , H01L31/02 , H01L33/44 , H01L33/48
摘要： PURPOSE:To completely seal an optical fiber coupling semiconductor device by partly coating a substance not wet with solder on the other inner wall of a hollow holder inserted with an optical fiber from one end and soldering a metallic case fitted with a semiconductor element. CONSTITUTION:A substance 12 not wet with a solder is partly coated on the other inner wall of a hollow holder 1 inserted with an optical fiber 2 from one end, and a metallic case 10 fitted with a semiconductor element 9 is secured with solder 11. For example, the holder 1 may be preferably formed of a metal having low thermal condutivity and high hardness. Thus, it can obtain a completely stable airtight seal without deteriorating the photocoupling efficiency.

8. 发明专利

JPS5637654A SEMICONDUCTOR ELEMENT CONTAINER 失效
公开(公告)号：JPS5637654A
公开(公告)日：1981-04-11
申请号：JP11332879
申请日：1979-09-04
申请人： NIPPON ELECTRIC CO
发明人： NAKASHIMA MASATO , ISHIDA AKIRA
IPC分类号： H01L23/08 , H01L23/057
摘要： PURPOSE:To improve the accuracy of the external shape of a semiconductor element container of the type containing a semiconductor element in a recess formed on the surface of a laminated ceramic and sealing it with a cap by extending the periphery of container externally from the cap while maintaining the surface of placing the element as the same level as the periphery of the container. CONSTITUTION:The first ceramic layer 1 is formed of laminate ceramics, and a second ceramic layer 3 of ring shape is formed thereon as projected. Thus, a semiconductor element container is formed. Then, a semiconductor element 6 is soldered to the central portion on the surface 7 of the first layer 1 as surrounded by the second layer 3, and an electrode is connected to a metallized layer 2 formed on the first layer 2 using a fine bonding wire 8. Thereafter, an external lead wire 5 is connected to the end of the metallized layer 2 passing through the wall of the layer 3, and a cap 9 is fixed onto the surface of the second layer 3 using a low melting poing glass seal layer 10. Since the container may deform due to the sintering treatment in this configuration when forming the container, an externally extended exposed portion 4 is formed on the first layer 1 upon production of the container, and the deformation can be thus reduced at the container.

9. 发明专利

JPS5413783A PHOTOELECTRIC TRANSDUCER 失效
公开(公告)号：JPS5413783A
公开(公告)日：1979-02-01
申请号：JP7934977
申请日：1977-07-01
申请人： NIPPON ELECTRIC CO
发明人： NAKASHIMA MASATO
IPC分类号： H01L31/02
摘要： PURPOSE:To readily perform connection of high accuracy by providing markings for indicating the center of a photoelectric transducing region on the peripheral part of a semiconductor substrate and markings showing designated positions on a case and aligning both markings.

10. 发明专利

JPS57148385A COUPLING DEVICE FOR OPTICAL FILTER AND SEMICONDUCTOR ELEMENT 失效
公开(公告)号：JPS57148385A
公开(公告)日：1982-09-13
申请号：JP3336281
申请日：1981-03-09
申请人： NIPPON ELECTRIC CO
发明人： NAKASHIMA MASATO
IPC分类号： G02B6/42 , H01L31/02 , H01L33/48 , H01S5/00 , H01S5/022
摘要： PURPOSE:To prevent the photofeedback effect for the subject semiconductor element by a method wherein the transparent plate, which was adhered to the terminal of incidence of an optical fiber, is adhered to the terminal face on the emitting side too. CONSTITUTION:A retaining fitting 2 is fixed to the package 1 whereon a laser diode is hermetically sealed. A lens 3, an incident terminal preventing glass plate 4 and an optical fiber 5 are adhered to the fitting 2. After the above adhesion has been finished, the adjustment of an optical axis is performed by making a fine adjustment and fixing on the position and the inclination of the diode. A glass plate 6 is adhered to the output terminal of the fiber 5 together with a retaining apparatus 6. Accordingly, the reflected light from the incident terminal of the fiber 5 is reduced, and the photofeedback effect can be prevented.

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