Intel Corporation

Apple Inc.

Jun Liao

Xiang Li

James A McCall

Jaejin Lee

Yunhui Chu

Christopher E Cox

Zhen Zhou

Jong-Ru Guo

Kai Xiao

George Vergis

Zuoguo Wu

Konika Ganguly

Daqiao Du

Kemal Aygun

Zhichao Zhang

Hao-Han Hsu

Dong-Ho Han

Stephen H Hall

Chung-Hao Chen

Xiaoning Ye

Jingbo Li

Emile Davies-Venn

Charles C Phares

Mo Liu

Tae-Young Yang

Stephen Christianson

Beomtaek Lee

Ling Zheng

Qin Li

Yuanhong Zhao

M Reza Zamani

Kevin Stone

Cory Mason

Kirankumar Kamisetty

A memory device includes a grounded molding. The memory device includes a substrate having a first surface for a memory die, where the substrate has ground vias through substrate to connect to a ground reference. The substrate has a ball grid array (BGA) on the opposite surface, including perimeter balls to connect to ground connections. The grounded molding includes an electrically conductive epoxy mold to cover the memory die, where the electrical conductivity of the molding, with the molding grounded can provide radio frequency interference (RFI) shielding.

Memory device package with noise shielding

Techniques for fabricating a package substrate and/or a stiffener for a semiconductor package are described. For one technique, a package substrate comprises: a routing layer comprising a dielectric layer. A stiffener may be above the routing layer and a conductive line may be on the routing layer, the conductive line comprising first and second portions, the first portion having a first width, the second portion having a second width, the conductive line extending from a first region of the routing layer to a second region of the routing layer, the first region being under the stiffener, the second region being outside the stiffener, the first portion being on the first region, and the second portion being on the second region. One or more portions of the conductive line can be perpendicular to an edge of the stiffener. The perpendicular portion(s) may comprise a transition between the first and second widths.

Stiffener and package substrate for a semiconductor package

An apparatus is described. The apparatus includes a semiconductor chip having cross-talk noise cancellation circuitry disposed between a disturber trace and a trace to be protected from cross-talk noise emanating from the disturber trace. The trace is to be coupled to a receiver disposed on a different semiconductor chip.

Discrete circuit having cross-talk noise cancellation circuitry and method thereof

Embodiments may relate to a connector. The connector may include a plurality of connector pins that are to communicatively couple an element of a printed circuit board (PCB) with an element of an electronic device when the element of the PCB and the element of the electronic device are coupled with the connector. The connector may also include an active circuit that is communicatively coupled with a pin of the plurality of pins. The active circuit may be configured to match an impedance of the element of the PCB with an impedance of the element of the electronic device. Other embodiments may be described or claimed.

Connector with active circuit

An apparatus is described. The apparatus includes an electro-mechanical interface having angled signal interconnects, wherein, the angling of the signal interconnects is to reduce noise coupling between the angled signal interconnects.

Packed interconnect structure with reduced cross coupled noise

A device includes a printed circuit board (PCB) and a shield for the PCB. The shield can reduce high frequency electromagnetic frequency (EMF) noise generated by one or more components of the PCB. The PCB includes pads to interface with a corresponding connector. For example, for a dual inline memory module (DIMM) PCB, the PCB includes pads to insert into a DIMM connector. The shield includes a gap in its perimeter that aligns with clips in the corresponding connector. The gaps will correspond to similar features of the PCB that interface with the corresponding connector to allow the shield to attach to the PCB. The shield includes lock fingers to extend from a connector-facing edge of the shield to interface with the corresponding connector to align the shield with the corresponding connector.

Snap-on electromagnetic interference (EMI)-shielding without motherboard ground requirement

Embodiments of the present disclosure relate to a connector to connect a printed circuit board (PCB) with a memory device, where the connector includes a housing couplable with the PCB; a first signal pin coupled with the housing, where the first signal pin includes a first portion that includes a first curve, and a second portion that extends from the first portion and includes a second curve; and a second signal pin coupled with the housing, where the second signal pin includes a third portion that includes a third curve, and a fourth portion that extends from the third portion and includes a fourth curve, where the first curve is curved in a first opposite direction relative to the third curve, and where the second curve is curved in a second opposite direction relative to the fourth curve.

Crosstalk reducing connector pin geometry

An electromagnetic interference (EMI) shielding can be couplable to a circuit board. The EMI shielding can include a fence couplable to the circuit board, a lid couplable to the fence, and a shield arm extending from the lid and being configured to couple to the fence. The shield arm can be hingedly or rotatably coupled to the lid. The shield arm can be magnetically couplable to the lid. The shield arm and/or the fence can include a magnet to provide a magnetic attraction between the shield arm and the fence.

Electromagnetic interference shielding having a magnetically attracted shield arm

Techniques and mechanisms for mitigating signal deterioration in communications between two circuit boards. In an embodiment, a packaged device accommodates coupling to a first circuit board which, in turn, accommodates connection to a second circuit board. In one such embodiment, an amplifier circuit of the packaged device includes an amplifier circuit which comprises a variable resistor and an active circuit element coupled thereto. The device receives via one of the circuit boards a control signal and a voltage which configure the amplifier circuit to provide an impedance matching for communication between the circuit boards. In another embodiment, the device comprises multiple common gate amplifiers which are variously configurable each to provide a respective impedance matching for communications between a motherboard and a dual in-line memory module.

Device, system and method to mitigate signal noise in communications with a memory module

A system for a three-dimensional ('3D') printed circuit board ('PCB') to printed circuit board interface is provided. A first PCB includes first landing pads disposed on one or more edges of the first PCB. The first landing pads electrically couple to conductive pins or second landing pads disposed on a second PCB. The second landing pads may be disposed in a slot in the second PCB. The interface between the first landing pads and the second landing pads may provide various advantages over traditional PCB to PCB interfaces, such as, improved signal integrity, improved power integrity, increased contact density, decreased clock jitter, etc.

Printed circuit board (PCB) with three-dimensional interconnects to other printed circuit boards

A method is described. The method includes receiving DDR memory channel signals from a motherboard through a larger DIMM motherboard connector. The method includes routing the signals to one of first and second smaller form factor connectors. The method includes sending the DDR memory channel signals to a DIMM that is connected to the one of the first and second smaller form factor connectors.

Memory channel having more than one DIMM per motherboard DIMM connector

Growing community of inventors

Hillsboro, OR, United States of America

Jun Liao