Dell Products Inc.

Emc IP Holding Company LLC

Vijendera Kumar

Bhyrav M Mutnury

V Mallikarjun Goud

Mickey Steven Felton

Arun Reddy Chada

Mallikarjun Vasa

Doug Wallace

Jaya Gowri Anand Burji

Mallikarjun Goud Vasa

A printed circuit board includes a differential signal via pairs to route differential signal between layers of the printed circuit board. A first differential signal via pair is oriented in a first orientation and a second differential signal via pair is oriented perpendicular to the first orientation. The second differential signal via pair is located such that a midpoint of a first line segment drawn between centers of first and second vias of the second differential signal pair intersects a first ray drawn from a center of a first via of the first differential signal via pair through a center of a second via of the first differential signal via pair. Further, the second differential signal via pair is located such that the midpoint of the first line segment is at a characteristic via-to-via pitch distance for the printed circuit board from the center of the second via of the first differential signal via pair.

Printed circuit board having vias arranged for high speed serial differential pair data links

An electrical connector element, for use on a printed circuit board assembly, includes a soldering pad having a longitudinal length and a cross-sectional width. The soldering pad is configured to be electrically-coupleable to a PCB device conductor. At least one impedance inducing feature is positioned along the longitudinal length of the soldering pad.

Electrical connector element

A method for manufacturing a surface mount technology (SMT) pad structure includes attaching an adjacent pair of differential contact strips to a nonconductive surface of respective landing pads of a surface mount technology (SMT) pad structure of a circuit board substrate, the pair of differential contact strips having converging narrowing at a respective distal end and each having a proximal signal trace for conducting a high-speed communication signal to another functional component attached to a circuit board substrate. The method includes attaching a return current strip that is longitudinally aligned adjacent to the pair of differential contact strips on a first lateral side and connected to a ground plane of the circuit board substrate, the converging narrowing of the adjacent differential contact strip increasing separation from a distal end of the return current strip, the separation improving signal integrity by reducing fringe effects, increasing impedance, and quenching resonance.

Method for manufacturing a surface mount technology (SMT) pad structure for next generation speeds

Systems and methods are provided that may be implemented in-situ and on-chip to capture a digital signal eye of a serial transmit signal produced by a transmitter circuit of integrated SerDes PHY transceiver circuitry. In one example, a serial transmit signal produced by a transmitter side circuit of an integrated SerDes PHY transceiver circuit may be looped back on chip to the receiver side circuit of the same SerDes PHY transceiver circuit such that an integrated digital eye monitor circuit of the SerDes receiver circuit may capture the digital eye of the serial transmit signal of the same SerDes PHY circuit. In another example, a digital eye monitor circuit may be integrated on the transmitter side of an integrated SerDes PHY transceiver circuit such that a serial transmit signal produced by the transmitter side circuit of may be captured on-chip.

Systems and methods of in-situ digital eye characterization for serial data transmitter circuitry

An Information handling system (IHS) includes a circuit board assembly with surface mount technology (SMT) pad structure. Landing pad(s) attached to circuit board substrate have a mounting area that receive an SMT connector pin onto adjacent pair of differential contact strips plated to nonconductive surface and extending longitudinally in parallel alignment. A return current strip is longitudinally aligned, adjacent to the differential contact strips on a first lateral side. The return current strip is connected to a ground plane of the circuit board substrate. Converging narrowing of the adjacent differential contact strip increases separation from a distal end of the return current strip. The separation improves signal integrity by reducing fringe effects, increasing impedance, and quenching resonance. A surface mount device (SMD) has one or more connector pins that are attached to the one or more landing pads to conduct the high-speed communication signal.

Surface mount technology (SMT) pad design with differential contact strips having converging narrowing distal ends that facilitate high speed communication

Methods and mechanisms for mitigating attenuation in a printed circuit board connection may include selecting the relative permittivities of resin layers proximate to the connection to control connection frequency resonances such that the attenuation of signals in the connection due to frequency resonance is mitigated.

Growing community of inventors

Bengaluru, India

Vijendera Kumar