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公开(公告)号:US20190166684A1
公开(公告)日:2019-05-30
申请号:US16199484
申请日:2018-11-26
申请人: Finisar Corporation
摘要: A circuit includes a printed circuit board including a first portion defining a window formed as a first void on a first side of the printed circuit board and a second portion defining a cavity formed as a second void opposite the first void on a second side of the printed circuit board. The circuit further includes a heat sink inserted in the second void, the heat sink having a first side forming a bottom of the first void and the bottom of the first void within the printed circuit board. The circuit yet further includes at least one electronic circuit die mounted to the first side of the heat sink and electrically coupled to the first side of the printed circuit board.
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公开(公告)号:US20180041283A1
公开(公告)日:2018-02-08
申请号:US15648929
申请日:2017-07-13
申请人: Finisar Corporation
CPC分类号: H04B10/501 , H04B10/40 , H04B10/60
摘要: An apparatus and method for signaling and transmitting data through an optical link is described. The apparatus may include a connector including a first plurality of contacts compatible with an enhanced SFP (SFP+) connector. The connector further includes an additional contact formed at a space adjacent to the first plurality of contacts. A tone generator couples to the additional contact to receive a first signal and to generate a first distinct tone indicative of the first signal for transmission via the additional contact. The method may include generating a first distinct tone indicative of a first signal providing control or status of an apparatus and transmitting or receiving a differential data signal over a portion of a first plurality of contacts compatible with an enhanced SFP (SFP+) connector. The first distinct tone is transmitted over the additional contact formed in a space adjacent to the first plurality of contacts.
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公开(公告)号:US09852057B2
公开(公告)日:2017-12-26
申请号:US14748469
申请日:2015-06-24
申请人: Finisar Corporation
IPC分类号: H04B10/079 , G06F12/02 , H04B10/40 , G06F11/34 , G06F13/16
CPC分类号: G06F12/023 , G06F11/349 , G06F13/16 , H04B10/07953 , H04B10/40
摘要: Embodiments of a device and method to automatically acquire signal quality metrics in a digital communication system are disclosed. The device may include acquisition means to sample the likelihood of a digital communication signal passing through a grid of time and amplitude regions, and storage means by which such likelihood measurements may be accumulated in a computer memory array for analysis. A state machine may execute a method that controls both the acquisition means and the storage means, requiring minimal intervention from supervisory systems.
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公开(公告)号:US10667388B2
公开(公告)日:2020-05-26
申请号:US16673719
申请日:2019-11-04
申请人: FINISAR CORPORATION
IPC分类号: H05K1/02 , H05K1/03 , H05K1/11 , G02B6/132 , G02B6/124 , G02B6/122 , G02B6/12 , G02B6/42 , H05K3/46 , G02B6/136 , H01P3/08 , H05K1/09 , H05K3/32
摘要: An optical waveguide is disclosed. In a disclosed embodiment, the optical waveguide includes a first aluminum nitride (AlN) thin film disposed on a layer of high-frequency polymer. A second AlN thin film is embedded in the first AlN thin film. In disclosed embodiments, the nitrogen concentration level of the first AlN thin film is different than the concentration level of the second AlN thin film.
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公开(公告)号:US20190164891A1
公开(公告)日:2019-05-30
申请号:US15822952
申请日:2017-11-27
申请人: Finisar Corporation
IPC分类号: H01L23/538 , H01L23/66 , H01L31/02
摘要: A circuit of tunable differential vias may include a first tunable via circuit configured to couple a first signal of a differential signal pair from a first outer surface of a printed circuit board (PCB) to a second outer surface of the PCB. The circuit may further include a second tunable via circuit configured to couple a second signal of the differential signal pair from the first outer surface of the PCB to the second outer surface of the PCB. The first tunable via circuit may further include a first buried via spatially offset from the second tunable via circuit to cause a predetermined impedance for the first and second signals through the first and second tunable via circuits at an operating frequency.
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公开(公告)号:US20190132053A1
公开(公告)日:2019-05-02
申请号:US16195739
申请日:2018-11-19
申请人: FINISAR CORPORATION
摘要: An apparatus and method for signaling and transmitting data through an optical link is described. The apparatus may include a connector including a first plurality of contacts compatible with an enhanced SFP (SFP+) connector. The connector further includes an additional contact formed at a space adjacent to the first plurality of contacts. A tone generator couples to the additional contact to receive a first signal and to generate a first distinct tone indicative of the first signal for transmission via the additional contact. The method may include generating a first distinct tone indicative of a first signal providing control or status of an apparatus and transmitting or receiving a differential data signal over a portion of a first plurality of contacts compatible with an enhanced SFP (SFP+) connector. The first distinct tone is transmitted over the additional contact formed in a space adjacent to the first plurality of contacts.
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公开(公告)号:US20150289368A1
公开(公告)日:2015-10-08
申请号:US14248108
申请日:2014-04-08
申请人: FINISAR CORPORATION
CPC分类号: H05K3/4688 , H01L2224/48227 , H01L2224/85464 , H05K1/024 , H05K1/0366 , H05K3/244 , H05K2201/0141 , H05K2201/0154 , H05K2201/0191
摘要: A hybrid printed circuit board is described. The hybrid printed circuit board may include a top layer, a bottom layer, and a plurality of internal layers stacked up between the top layer and the bottom layer. The plurality of internal layers may include a first internal layer below the top layer and a second internal layer above the bottom layer. The hybrid printed circuit board may include first unreinforced laminate placed between the top layer and the first internal layer. The hybrid circuit board may additionally include second unreinforced laminate placed between the second internal layer and the bottom layer. The hybrid printed circuit board may include third laminate placed between adjacent internal layers of the plurality of internal layers.
摘要翻译: 描述了混合印刷电路板。 混合印刷电路板可以包括顶层,底层和堆叠在顶层和底层之间的多个内层。 多个内层可以包括在顶层下面的第一内层和在底层之上的第二内层。 混合印刷电路板可以包括放置在顶层和第一内层之间的第一未加强的层压材料。 混合电路板可以另外包括放置在第二内层和底层之间的第二未加强层叠体。 混合印刷电路板可以包括放置在多个内层的相邻内层之间的第三层压体。
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公开(公告)号:US10470302B2
公开(公告)日:2019-11-05
申请号:US15138116
申请日:2016-04-25
申请人: FINISAR CORPORATION
IPC分类号: H05K1/02 , H05K1/03 , H05K1/11 , G02B6/132 , G02B6/124 , G02B6/122 , G02B6/12 , H05K3/46 , G02B6/42 , G02B6/136 , H01P3/08 , H05K1/09 , H05K3/32
摘要: A printed circuit board may include an aluminum nitride (AIN) substrate that includes an AIN thin film and a layer of high-frequency polymer as a carrier substrate of the AIN thin film. The AIN substrate forms a first layer of the printed circuit board. The AIN substrate comprises a heat spreader that laterally spreads out heat from a heat sink on the printed circuit board to form a thermal dissipation path parallel with a signal path on the printed circuit board. The printed circuit board may include a main substrate aligned to and bonded with the AIN substrate. The main substrate may include one or more additional layers of the printed circuit board.
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公开(公告)号:US10135538B2
公开(公告)日:2018-11-20
申请号:US15648929
申请日:2017-07-13
申请人: Finisar Corporation
摘要: An apparatus and method for signaling and transmitting data through an optical link is described. The apparatus may include a connector including a first plurality of contacts compatible with an enhanced SFP (SFP+) connector. The connector further includes an additional contact formed at a space adjacent to the first plurality of contacts. A tone generator couples to the additional contact to receive a first signal and to generate a first distinct tone indicative of the first signal for transmission via the additional contact. The method may include generating a first distinct tone indicative of a first signal providing control or status of an apparatus and transmitting or receiving a differential data signal over a portion of a first plurality of contacts compatible with an enhanced SFP (SFP+) connector. The first distinct tone is transmitted over the additional contact formed in a space adjacent to the first plurality of contacts.
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公开(公告)号:US20160323992A1
公开(公告)日:2016-11-03
申请号:US15138116
申请日:2016-04-25
申请人: FINISAR CORPORATION
CPC分类号: H05K1/0274 , G02B6/12007 , G02B6/122 , G02B6/1221 , G02B6/124 , G02B6/132 , G02B6/136 , G02B6/42 , G02B6/4214 , G02B6/4269 , G02B2006/12035 , G02B2006/121 , G02B2006/12104 , G02B2006/12107 , G02B2006/12164 , H01P3/081 , H05K1/0201 , H05K1/0207 , H05K1/0209 , H05K1/024 , H05K1/028 , H05K1/032 , H05K1/09 , H05K1/115 , H05K3/323 , H05K3/4605 , H05K3/4611 , H05K3/4614 , H05K3/4638 , H05K3/4688 , H05K2201/0154 , H05K2201/09918
摘要: A printed circuit board may include an aluminum nitride (AIN) substrate that includes an AIN thin film and a layer of high-frequency polymer as a carrier substrate of the AIN thin film. The AIN substrate forms a first layer of the printed circuit board. The AIN substrate comprises a heat spreader that laterally spreads out heat from a heat sink on the printed circuit board to form a thermal dissipation path parallel with a signal path on the printed circuit board. The printed circuit board may include a main substrate aligned to and bonded with the AIN substrate. The main substrate may include one or more additional layers of the printed circuit board.
摘要翻译: 印刷电路板可以包括包含AIN薄膜和作为AIN薄膜的载体衬底的高频聚合物层的氮化铝(AlN)衬底。 AIN衬底形成印刷电路板的第一层。 AIN衬底包括散热器,其横向散布来自印刷电路板上的散热器的热量,以形成与印刷电路板上的信号路径平行的散热路径。 印刷电路板可以包括与AIN衬底对准并与其结合的主衬底。 主衬底可以包括印刷电路板的一个或多个附加层。
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