Intel Corporation

Gong Ouyang

Kai Xiao

Kemal Aygun

Zhichao Zhang

Eric Jin Li

Beom-Taek Lee

Lu-Vong T Phan

Raul Enriquez Shibayama

Jiangqi He

Xiang Li

Hao-Han Hsu

Yun Ling

Shaowu Huang

Jose Diego Guillen Gonzalez

Wei Xu

Fine feature formation techniques for printed circuit boards are described. In one embodiment, for example, a method may comprise fabricating a conductive structure on a low density interconnect (LDI) printed circuit board (PCB) according to an LDI fabrication process and forming one or more fine conductive features on the LDI PCB by performing a fine feature formation (FFF) process, the FFF process to comprise removing conductive material of the conductive structure along an excision path to form a fine gap region within the conductive structure. Other embodiments are described and claimed.

Fine feature formation techniques for printed circuit boards

Fine feature formation techniques for printed circuit boards are described. In one embodiment, for example, a method may comprise fabricating a conductive structureon a low density interconnect (LDI) printed circuit board (PCB)according to an LDI fabrication process and forming one or more fine conductive features on the LDI PCB by performing a fine feature formation (FFF) process, the FFF process to comprise removing conductive material of the conductive structure along an excision path to form a fine gap regionwithin the conductive structure. Other embodiments are described and claimed.

Techniques and mechanisms to provide a compact arrangement of vias extending through at least a portion of a printed circuit board (PCB) or other substrate. In an embodiment, the substrate includes a dielectric material and a sidewall structure forming a hole region that extends at least partially through the dielectric material. The hole region adjoins each of a first via and a second via, and is also located between the first via and second via. In another embodiment, the first via is coupled to exchange a first signal of a differential signal pair, and the second via is coupled to exchange a second signal of the same differential signal pair.

Compact via structures and method of making same

One embodiment provides an electrical connector. The electrical connector includes a housing defining a slot; and a pin. The pin includes a stub member comprising a first portion and a second portion, the first portion to couple to a first printed circuit board; and a movable member operable to engage the second portion of the stub member to create a conductive path, wherein the stub member is only engaged with the movable member when a second printed circuit board is inserted into the slot.

Electrical connector

Some embodiments of the present disclosure describe an integrated circuit (IC) package assembly having first, second, and third insulated wires wire bonded with die pads on an IC die, with an outer surface of the second insulated wire located at a distance of less than an outer cross-sectional diameter of the second insulated wire from an outer surface of the first insulated wire at a first location and located at a distance of less than the outer cross-sectional diameter from an outer surface of the third insulated wire at a second location. Other embodiments may be described and/or claimed.

Package assembly with gathered insulated wires

A conductor in a laminar structure, such as a printed circuit board or thin-film stack, is closely flanked by at least one open trench filled with an ambient medium (e.g., air, another gas, vacuum) of a lower dielectric loss than the conductor's surrounding dielectric. The trench may be made by any suitably precise method such as laser scribing, chemical etching or mechanical displacement. A thin layer of dielectric may be left on the sides of the conductor to prevent oxidation or other reactions that may reduce conductivity. When the conductor carries a signal, part of an electric and/or magnetic field that would ordinarily travel through the surrounding dielectric encounters the low-loss ambient medium (e.g. air) in the trench. The effective dielectric loss surrounding the conductor is lowered, reducing signal attenuation and crosstalk, particularly at high frequencies.

Printed circuit board having a signal conductor disposed adjacent one or more trenches filled with a low-loss ambient medium

A helically wound insulated twinax cable reduces cable dielectric loss by increasing the percentage of air in the dielectric filler surrounding the signal conductors. The helical insulator wire winding further provides mechanical support and reduces the risk of creating an electrical short-circuit. This will improve differential signaling capability of the two-conductor cable and enable longer cable range.

Helically insulated twinax cable systems and methods

Systems, apparatuses, and methods may include a circuit board having a plated through hole with a via portion and a stub portion and a self-coupled inductor electrically coupled to the via portion of the plated through hole. The self-coupled inductor may include a first inductor mutually coupled to a second inductor in series to reduce a capacitive effect of the stub portion of the plated through hole.

Inductors for circuit board through hole structures

An apparatus and method to permit reconfiguration of a memory topology. A printed circuit board (PCB) has a central processing unit (CPU) connector coupled a pair of dual inline memory module (DIMM) connectors coupled thereto. The PCB defines an electrical access channel coupling the pair of DIMM connectors into a T topology having a first branch and a second branch. The second branch of the T topology is electrically discontinuous with the rest of the T topology proximate to a T junction. A bridge may be provided to span the discontinuity.

Method to realize reconfigurable memory topology

A broadside coupled differential design is described herein. The design may include a differential pair. Each trace of the differential pair includes a wide portion and a narrow portion. The wide portion of the first trace of the differential pair is to be aligned with a narrow portion of the second trace of the differential pair. Additionally, the wide portion of the second trace of the differential pair is to be aligned with a narrow portion of the first trace of the differential pair, such that the wide and narrow portions of the traces of the differential pair are staggered.

Broadside coupled differential transmission lines having alternating wide and narrow portions

In an embodiment, a connector such as an edge connector includes a connector housing, a first set of pins configured within the housing and having first ends to couple to corresponding signal lines of a first circuit board and second ends to couple to corresponding signal lines of a mating connector of a second circuit board, and a conductive material adapted to the housing to reduce interference caused by one or more sources of interference. Other embodiments are described and claimed.

Growing community of inventors

Olympia, WA, United States of America

Gong Ouyang