公开(公告)号：US12289831B2

公开(公告)日：2025-04-29

申请号：US18305489

申请日：2023-04-24

Applicant: Cisco Technology, Inc.

Inventor： Joel Goergen ,  Jessica Kiefer ,  Alpesh Umakant Bhobe ,  Kameron Rose Hurst ,  D. Brice Achkir ,  Amendra Koul ,  Scott Hinaga ,  David Nozadze

IPC: H05K3/46 ,  H05K1/09

Abstract: A structure includes a first copper layer and a first carbon layer applied directly to a surface of the first copper layer, a second copper layer and a second carbon layer applied directly to a surface of the second copper layer, and an insulating core disposed between the first and second copper layers. Each of the first carbon layer and the second carbon layer faces toward and directly contacts the insulating core. The structure provides electrical power to a component of an electronic device.

公开(公告)号：US12160948B2

公开(公告)日：2024-12-03

申请号：US18337724

申请日：2023-06-20

Applicant: Cisco Technology, Inc.

Inventor： Joel Goergen ,  Scott Hinaga ,  Jessica Kiefer ,  Alpesh Umakant Bhobe ,  D. Brice Achkir ,  David Nozadze ,  Amendra Koul ,  Mehmet Onder Cap ,  Madeline Marie Roemer

IPC: H05K1/02

Abstract: A conductive signal transmission structure for a printed circuit includes a copper material and a graphene layer disposed within the copper material at a depth below a surface of the structure. The depth of the graphene layer is further within a skin depth region of the structure when a transmission signal applied to the conductive signal transmission structure has a signal speed of at least 112 Gbps and/or a Nyquist frequency that is at least about 14 gigahertz (GHz).

公开(公告)号：US20230354505A1

公开(公告)日：2023-11-02

申请号：US18337724

申请日：2023-06-20

Applicant: Cisco Technology, Inc.

Inventor： Joel Goergen ,  Scott Hinaga ,  Jessica Kiefer ,  Alpesh Umakant Bhobe ,  D. Brice Achkir ,  David Nozadze ,  Amendra Koul ,  Mehmet Onder Cap ,  Madeline Marie Roemer

IPC: H05K1/02

CPC classification number: H05K1/0239 ,  H05K1/0242 ,  H05K2201/09245

Abstract: A conductive signal transmission structure for a printed circuit includes a copper material and a graphene layer disposed within the copper material at a depth below a surface of the structure. The depth of the graphene layer is further within a skin depth region of the structure when a transmission signal applied to the conductive signal transmission structure has a signal speed of at least 112 Gbps and/or a Nyquist frequency that is at least about 14 gigahertz (GHz).

公开(公告)号：US11606152B2

公开(公告)日：2023-03-14

申请号：US17342316

申请日：2021-06-08

Applicant: Cisco Technology, Inc.

Inventor： Amendra Koul ,  David Nozadze ,  Mike Sapozhnikov ,  Joel Goergen ,  Arnav Shailesh Shah

IPC: H04B17/15 ,  H04B17/24 ,  H04B10/071

Abstract: Channel predictive behavior and fault analysis may be provided. A forward time value may be determined comprising a time a forward signal takes to travel from a transmitter over a channel to the receiver. Next, a reflected time value may be determined comprising a time a reflected signal takes to travel to the receiver. The reflected signal may be associated with the forward signal. A discontinuity may then be determined to exist on the channel based on the forward time value and the reflected time value. The reflected signal may be caused by the discontinuity and a high impedance or low impedance at the transmitter present after the forward signal is sent.

公开(公告)号：US20200263977A1

公开(公告)日：2020-08-20

申请号：US16868423

申请日：2020-05-06

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Amendra Koul ,  Yaochao Yang ,  Mike Sapozhnikov ,  Joel Richard Goergen ,  Kartheek Nalla

IPC: G01B11/24 ,  H05K3/00 ,  G01B11/26 ,  G01N21/956

Abstract: In one embodiment, a method includes inspecting a layer of a printed circuit board through an inspection window comprising an opening formed in one or more other layers of the printed circuit board and identifying a location of a trace aligned with the inspection window, relative to a marker in a fiber bundle of a fiber weave to assess fiber weave skew.

公开(公告)号：US20190219385A1

公开(公告)日：2019-07-18

申请号：US15872163

申请日：2018-01-16

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Amendra Koul ,  Yaochao Yang ,  Mike Sapozhnikov ,  Joel Richard Goergen ,  Kartheek Nalla

IPC: G01B11/24 ,  G01N21/956

Abstract: In one embodiment, a method generally comprises importing a layout identifying routing information for a plurality of differential pair traces on a printed circuit board at a skew assessment module, receiving values for a plurality of skew parameters associated with fiber weave skew, receiving variation parameters from a database comprising data collected on fiber weave variation for one or more of the skew parameters, calculating a skew estimate for the printed circuit board based on the skew parameters and the variation parameters at the skew assessment module, and determining if the skew estimate is within a specified skew allowance for the printed circuit board.

公开(公告)号：US12003282B2

公开(公告)日：2024-06-04

申请号：US18172430

申请日：2023-02-22

Applicant: Cisco Technology, Inc.

Inventor： Amendra Koul ,  David Nozadze ,  Mike Sapozhnikov ,  Joel Goergen ,  Arnav Shailesh Shah

IPC: H04B17/15 ,  H04B10/071 ,  H04B17/24

CPC classification number: H04B17/15 ,  H04B10/071 ,  H04B17/24

Abstract: Channel predictive behavior and fault analysis may be provided. A forward time value may be determined comprising a time a forward signal takes to travel from a transmitter over a channel to the receiver. Next, a reflected time value may be determined comprising a time a reflected signal takes to travel to the receiver. The reflected signal may be associated with the forward signal. A discontinuity may then be determined to exist on the channel based on the forward time value and the reflected time value. The reflected signal may be caused by the discontinuity and a high impedance or low impedance at the transmitter present after the forward signal is sent.

公开(公告)号：US11761755B2

公开(公告)日：2023-09-19

申请号：US17556521

申请日：2021-12-20

Applicant: Cisco Technology, Inc.

Inventor： Amendra Koul ,  Yaochao Yang ,  Mike Sapozhnikov ,  Joel Richard Goergen ,  Kartheek Nalla

IPC: G01B11/24 ,  G01N21/956 ,  G01B11/26 ,  H05K3/00

CPC classification number: G01B11/24 ,  G01B11/26 ,  G01N21/956 ,  H05K3/00 ,  G01N2021/95638

Abstract: In one embodiment, a method includes inspecting a fiber weave for use in a printed circuit board with an automated optical inspection tool and identifying a distance between fiber bundles in the fiber weave. The fiber weave comprises a plurality of the fiber bundles woven to form the fiber weave and a portion of the fiber bundles comprise markers and identifying a distance between the fiber bundles in the fiber weave comprises measuring a distance between the markers.

公开(公告)号：US20230198639A1

公开(公告)日：2023-06-22

申请号：US18172430

申请日：2023-02-22

Applicant: Cisco Technology, Inc.

Inventor： Amendra Koul ,  David Nozadze ,  Mike Sapozhnikov ,  Joel Goergen ,  Arnav Shailesh Shah

IPC: H04B17/15 ,  H04B17/24 ,  H04B10/071

CPC classification number: H04B17/15 ,  H04B17/24 ,  H04B10/071

Abstract: Channel predictive behavior and fault analysis may be provided. A forward time value may be determined comprising a time a forward signal takes to travel from a transmitter over a channel to the receiver. Next, a reflected time value may be determined comprising a time a reflected signal takes to travel to the receiver. The reflected signal may be associated with the forward signal. A discontinuity may then be determined to exist on the channel based on the forward time value and the reflected time value. The reflected signal may be caused by the discontinuity and a high impedance or low impedance at the transmitter present after the forward signal is sent.

公开(公告)号：US20220120558A1

公开(公告)日：2022-04-21

申请号：US17556521

申请日：2021-12-20

Applicant: Cisco Technology, Inc.

Inventor： Amendra Koul ,  Yaochao Yang ,  Mike Sapozhnikov ,  Joel Richard Goergen ,  Kartheek Nalla

IPC: G01B11/24 ,  G01N21/956 ,  G01B11/26 ,  H05K3/00

Abstract: In one embodiment, a method includes inspecting a fiber weave for use in a printed circuit board with an automated optical inspection tool and identifying a distance between fiber bundles in the fiber weave. The fiber weave comprises a plurality of the fiber bundles woven to form the fiber weave and a portion of the fiber bundles comprise markers and identifying a distance between the fiber bundles in the fiber weave comprises measuring a distance between the markers.