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101. 发明专利

JPH02144997A ELECTRIC CIRCUIT DEVICE 失效
公开(公告)号：JPH02144997A
公开(公告)日：1990-06-04
申请号：JP29807588
申请日：1988-11-28
申请人： HITACHI LTD
发明人： HIROTA KAZUO , YOKONO ATARU , FUJITA TAKESHI , MITANI MASAO , ASAO HIROSHI , MATSUMOTO KUNIO , TOKUNAGA YUTAKA , YAMADA MINORU
IPC分类号： H05K7/20 , H05K1/02 , H05K1/14 , H05K7/14
摘要： PURPOSE:To reduce the occurrence of voltage drops in the power supply to an electric circuit device and to reduce the delay time on the circuit board of the device by connecting facing two wiring circuit boards respectively mounted with ICs to each other in signals by means of conductors perpendicular to the surfaces of the circuit boards and making power supply to the circuit boards by using conductors perpendicular to two power source boards arranged outside the two wiring circuit boards. CONSTITUTION:Signal pins 6 connecting two facing wiring circuit boards 51 and 52 respectively mounted with numerous ICs 2 each other are put between the circuit boards 51 and 52. Power supply to the circuit boards 51 and 52 is made from two multilayer power source boards 71 and 72 respectively composed of multiple copper plates insulated from each other by means of power supply pins 8 distributed on the surfaces of the boards 71 and 72. Since the wiring between the ICs on the circuit boards 51 and 52 can be performed by utilizing the wiring in the circuit boards 51 and 52 and signal pins 6 distributed on the surfaces of the circuit boards, delay time in transmission can be reduced. Moreover, fluctuation of the power supply voltage to each IC can be reduced, since the power supply to the ICs is made through the power supply pins distributed on the surfaces of the circuit boards.

102. 发明专利

JPH02144512A OPTICAL SWITCH 失效
公开(公告)号：JPH02144512A
公开(公告)日：1990-06-04
申请号：JP29807488
申请日：1988-11-28
申请人： HITACHI LTD
发明人： ARIMA HIDEO , NORO TAKANOBU , TANEI HEIKICHI , ITOU AKITOMO , YOKONO ATARU
IPC分类号： G02B26/08
摘要： PURPOSE:To obtain the small-sized, low-cost mechanical type optical switch by forming through holes switch form optical paths in and a reflecting plate fixation part on a solid body by an NC machine, etc., with high accuracy. CONSTITUTION:For an optical path crossing system, the two through holes which have an internal diameter obtained by adding slight tolerance to the external diameter of optical fibers 2 - 5 and cross each other are formed in the organic or inorganic solid body. A groove is formed as the reflecting plate insertion part in the intersection part so that the plane (about which the through holes are symmetrical including the center point of the through hole intersection part/serves as the stopper surface at the time of the insertion of a reflecting plate 7. Then, the optical fibers, reflecting plate, etc., are fitted to the machine solid body. Thus, the optical switch can be assembled without any optical axis adjustment. Consequently, the need for a mechanism for optical axis adjustment is eliminated and the switch is reduced in size and cost.

103. 发明专利

JPS6452083A ELECTROLESS GOLD PLATING SOLUTION 失效
公开(公告)号：JPS6452083A
公开(公告)日：1989-02-28
申请号：JP20810387
申请日：1987-08-24
申请人： HITACHI LTD
发明人： TOMIZAWA AKIRA , USHIO JIRO , MIYAZAWA OSAMU , MATSUURA NAOKO , YOKONO ATARU
IPC分类号： C23C18/44
摘要： PURPOSE:To obtain the title stable electroless gold plating soln. having low toxicity and capable of carrying out thick plating for a long time by incorporating the chloride or sulfide of lead as a stabilizer into the plating soln. contg. a gold (I) thiosulfate complex as a gold source. CONSTITUTION:The chloride or sulfide of lead and the stabilizer for inhibiting the autolysis of the plating soln. are incorporated into the plating soln. contg. a gold (I) thiosulfate complex as a gold source and contg. a reducing agent, a complexing agent, an antioxidant for the complex agent, a pH regulator, etc. Since the obtained electroless gold plating soln. does not contain a toxic cyanide ion, safety of the plating operation and simplification of the waste liq. treatment can be obtained. In addition, the soln. can be used for a long time due to the stabilizer.

104. 发明专利

JPS6423230A OPTICAL SWITCH 失效
公开(公告)号：JPS6423230A
公开(公告)日：1989-01-25
申请号：JP17900287
申请日：1987-07-20
申请人： HITACHI LTD
发明人： ARIMA HIDEO , YOKONO ATARU
IPC分类号： G02F1/313 , G02F1/31
摘要： PURPOSE:To enable switching with several Vs voltage by constituting an optical switch of a material having a large Pockels constant permitting effective utilization of the high Pockels constant. CONSTITUTION:A Ba titanate single crystal is worked to a thin piece by cutting and grinding the single crystal at a face contg. a 010 axis and a direction deflected by a specified rotated angle theta from a 001 axis around the 010 axis. The thin piece is bonded to a fused quartz substrate on which a metallic electrode 4' is formed. Then, waveguide parts 2, 2' comprising the Ba titanate crystal are formed by processing the thin piece by etching to an X shape which is symmetrical to the 010 axis with 3 deg. crossing angle. A Ti oxide film 3 is formed on this crossing part and a metallic electrode 4 is formed thereon. The optical path of the light passing through the waveguide parts 2, 2' is switched in the crossing part by impressing DC across the electrode 4 and 4'. By this constitution, an operating voltage is decreased as the angle of rotation is increased, and an optical switch capable of operating with several Vs is obtd. when the angle theta is >=3 deg..

105. 发明专利

JPS63317784A APPARATUS FOR INSPECTING SEMICONDUCTOR DEVICE 失效
公开(公告)号：JPS63317784A
公开(公告)日：1988-12-26
申请号：JP15326787
申请日：1987-06-22
申请人： HITACHI LTD
发明人： KASUKABE SUSUMU , OKUBO MASAFUMI , AKIBA YUTAKA , TANAKA MINORU , YOKONO ATARU
IPC分类号： G01R31/26 , G01R31/28 , H01L21/66
摘要： PURPOSE:To measure the high speed electric characteristic of a semiconductor device, by inserting the part exposed from a coaxial cable of a core wire for a probe through a pipe composed of a shielded insulating material one at a time in a movable manner to allow the same to correspond to an electrode to be contacted. CONSTITUTION:A core wire 17 for a probe is covered with an insulating material and the outer periphery thereof is further covered with a shield material to form a coaxial cable having specific characteristic impedance. The chip part exposed from the coaxial cable of the core wire 17 for the probe is passed through each of a plurality of pipes 18 composed of an insulating material fixed between a pair of fixing boards 19, 20 one at a time and the leading end of the core wire 17 for the probe is guided to the position corresponding to each of the electrodes 1 of a semiconductor device 2 being an object to be inspected and the periphery of each of the insulating pipes 18 fixed between a pair of the fixing substrates 19, 20 is covered with a conductive material 21 and the pipes 18 are earthed in common. By this method, since the core wire 17 for the probe is shielded up to the vicinity of the leading end part thereof, the impedance matching of the whole from the probe to an inspection circuit is taken and the disturbance of the wave form of a high speed signal is prevented.

106. 发明专利

JPS63205992A METHOD OF FORMING WIRING BOARD 失效
公开(公告)号：JPS63205992A
公开(公告)日：1988-08-25
申请号：JP3790787
申请日：1987-02-23
申请人： HITACHI LTD
发明人： IWANAGA SHOICHI , FUJIWARA AKIO , YOKONO ATARU , MURATA AKIRA
IPC分类号： H05K3/10 , H05K3/46

107. 发明专利

JPS6342650B2 失效
公开(公告)号：JPS6342650B2
公开(公告)日：1988-08-24
申请号：JP7716079
申请日：1979-06-19
申请人： HITACHI LTD
发明人： HYOSHI YASUO , NARAHARA TOSHIKAZU , KOBAYASHI TOSHIO , YOKONO ATARU , ISOGAI TOKIO
IPC分类号： B29B7/00 , B29C39/00 , B29C39/02 , B29C39/24 , C08G18/00 , C08G18/69

108. 发明专利

JPS6328451B2 失效
公开(公告)号：JPS6328451B2
公开(公告)日：1988-06-08
申请号：JP11274483
申请日：1983-06-24
申请人： HITACHI LTD
发明人： ISHIKAWA MITSUO , KUMADA MAKOTO , NATE KAZUO , INOE TAKASHI , YOKONO ATARU
IPC分类号： C08G77/00 , C07F7/18 , C08G77/48 , C08G77/52 , C08G77/60 , G03F7/038

109. 发明专利

JPS6320450B2 失效
公开(公告)号：JPS6320450B2
公开(公告)日：1988-04-27
申请号：JP5381582
申请日：1982-04-02
申请人： HITACHI LTD
发明人： SHOJI FUSAJI , TAKEMOTO KAZUNARI , KATAOKA FUMIO , YOKONO ATARU , ISOGAI TOKIO
IPC分类号： C08G77/00 , C08G77/42 , C08G77/44 , C08G77/52

110. 发明专利

JPS6379976A ELECTROLESS GOLD PLATING SOLUTION 失效
公开(公告)号：JPS6379976A
公开(公告)日：1988-04-09
申请号：JP22183586
申请日：1986-09-22
申请人： HITACHI LTD
发明人： MIYAZAWA OSAMU , USHIO JIRO , TOMIZAWA AKIRA , MATSUURA NAOKO , YOKONO ATARU
IPC分类号： C23C18/44
摘要： PURPOSE:To obtain an electroless gold plating soln. contg. no poisonous cyanide ions and giving thick gold plating by dissolving a haloaurate, a thiosulfate, a sulfite, a reducing agent and a pH adjusting agent in water. CONSTITUTION:An aq. soln. contg. a haloaurate such as a tetrachloroaurate, tetrabromoaurate or tetraiodoaurate, a thiosulfate such as sodium thiosulfate or lithium thiosulfate, the sulfite of Na, Li, K or the like, thiourea as a reducing agent for the haloaurate and a pH adjusting agent for keeping the soln. at 8-9 pH such as a borate or an amine salt is used as an electroless gold plating soln. The plating soln. contains no poisonous cyanide ions unlike a conventional plating soln., has superior stability and can give thick gold plating.

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