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1.发明公开
公开(公告)号：EP3125285A4
公开(公告)日：2017-11-29
申请号：EP15769376
申请日：2015-03-18
发明人： AKAGAWA TAKESHI , YASHIKI KENICHIRO
CPC分类号： H05K1/111 , G02B6/122 , G02B6/4232 , H01L23/49844 , H01L2224/16225 , H05K1/0219 , H05K1/0243 , H05K1/0245 , H05K1/0251 , H05K1/181 , H05K3/4688 , H05K2201/10121 , H05K2201/10734 , Y02P70/611
摘要： A pad-array arrangement structure on a substrate for mounting an IC chip on the substrate, wherein a structure with which it is possible to maximally avoid an increase in the number of wiring layers on the substrate is obtained by devising the pad arrangement in an IC pad-array region. A embodiment of the present invention provides a pad-array structure on a substrate for mounting an IC chip on the substrate. The present invention is characterized in that: a plurality of ground pads arrayed equidistantly in a first row, and a plurality of signal pads arrayed equidistantly in a second row on the inside of and parallel to the first row, are provided on a first circumferential edge in the pad-array region; each of the signal pads passes between two adjacent ground pads in the first row and is connected to an external circuit on the substrate; and electrical signals are input to and output from the external circuit.
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公开(公告)号：EP2980618A4
公开(公告)日：2016-12-07
申请号：EP14773895
申请日：2014-03-19
CPC分类号： G02B6/4207 , G02B6/12004 , G02B6/125 , G02B6/28 , G02B6/305 , G02B6/34 , G02B2006/12123 , G02B2006/12142 , H01S5/0064 , H01S5/0085
摘要： An optical circuit, wherein the effects of reflected light generated by an optical component are reduced. The optical circuit (100) is provided with an optical branching (110) for branching light, an optical coupler (114) for coupling a first portion of branched light to an optical waveguide (118) for transmission, and an optical reflecting unit (116) for reflecting a second portion of the branched light, the phase difference between the reflected light from the optical coupler (114) and the reflected light from the optical reflecting unit (116) being (2m - 1)n (where m is an integer) on an input side of the optical branching (110).
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3.发明公开TRANSMISSION UNIT FOR OPTICAL TRANSMITTER/RECEIVER OR OPTICAL TRANSMITTER PROVIDED TO OPTO-ELECTRIC HYBRID BOARD 审中-公开发送部中光发射器/接收器或光发射器，用于光电混合极板
公开(公告)号：EP3026472A4
公开(公告)日：2017-03-22
申请号：EP14829257
申请日：2014-07-18
发明人： YASHIKI KENICHIRO , KURATA KAZUHIKO
CPC分类号： H01S5/0268 , G02B6/12004 , G02B6/125 , G02B6/2813 , G02B6/34 , G02B6/4204 , G02B6/4249 , G02B2006/12142 , G02F1/025 , H01S5/005 , H01S5/0085 , H01S5/02248
摘要： Provided is a transmission unit for an optical transmitter/receiver or an optical transmitter provided with an optical integrated circuit, characterized in the arrangement of a single-channel or multichannel semiconductor laser and the placement of a plurality of optical waveguides. This present invention is provided with: a semiconductor laser for emitting laser light in a plurality of channels; optical waveguides optically coupled in a corresponding manner to the semiconductor lasers, the optical waveguides propagating laser light as input light for each channel; optical modulators for modulating the input light and generating an optical signal; and an optical signal output unit coupled to the optical modulators, the optical signal output unit outputting the optical signal propagated from the optical modulators to the exterior. The present invention is characterized in that the semiconductor laser is arranged on the opposite side from an optical branching unit and the optical modulators, with the optical signal output unit interposed therebetween, in the plane of an opto-electric hybrid board.
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