Abstract: A land grid array (LGA) interposer structure, including an electrically insulating carrier plane, and at least one interposer mounted on a first surface of said carrier plane. The interposer possesses a hemi-toroidal configuration in transverse cross-section and is constituted of a dielectric elastomeric material. A plurality of electrically-conductive elements are arranged about the surface of the at least one hemi-toroidal interposer and extend radically inwardly and downwardly from an uppermost end thereof into electrical contact with at least one component located on an opposite side of the electrically insulating carrier plane. Provided is also a method of producing the land grid array interposer structure.

Abstract: A land grid array (LGA) interposer structure, including an electrically insulating carrier plane, and at least one interposer mounted on a first surface of said carrier plane. The interposer possesses a hemi-toroidal configuration in transverse cross-section and is constituted of a dielectric elastomeric material. A plurality of electrically-conductive elements are arranged about the surface of the at least one hemi-toroidal interposer and extend radically inwardly and downwardly from an uppermost end thereof into electrical contact with at least one component located on an opposite side of the electrically insulating carrier plane. Provided is also a method of producing the land grid array interposer structure.

Abstract: A Planar Memory Module (PAMM) device comprising a generally planar card comprising a first side and a second side, the first side having a plurality of couplings and the second side having a plurality of connectors, a plurality of memory devices coupled to the card via a first portion of the plurality of couplings, and at least one hub chip coupled to the card via a second portion of the plurality of couplings. Each of the plurality of couplings is connected to an associated one of the plurality of connectors.

Abstract: Techniques for forming enhanced electrical connections are provided. In one aspect, an electrical connecting device comprises an electrically insulating carrier having one or more contact structures traversing a plane thereof. Each contact structure comprises an elastomeric material having an electrically conductive layer running along at least one surface thereof continuously through the plane of the carrier.

Abstract: A land grid array (LGA) interposer structure, including an electrically insulating carrier plane, and at least one interposer mounted on a first surface of said carrier plane. The interposer possesses a hemi-toroidal configuration in transverse cross-section and is constituted of a dielectric elastomeric material. A plurality of electrically-conductive elements are arranged about the surface of the at least one hemi-toroidal interposer and extend radically inwardly and downwardly from an uppermost end thereof into electrical contact with at least one component located on an opposite side of the electrically insulating carrier plane. Provided is also a method of producing the land grid array interposer structure.

Abstract: LGA (land grid array) interposers having variable pitch connectors and distribution wiring to support space transforming I/O interconnections between first level chip modules and second level packaging. Apparatus and methods for constructing high-performance electronic modules (such as processor modules for computer systems) using LGA interposers that provide space transform I/O interconnections between fine pitch I/O contacts on a chip module and coarse pitch contacts on a circuit board.

Abstract: An interposer having one or more hollow electrical contact buttons disposed in a carrier. The interposer is formed by disposing sacrificial posts in vias of the carrier. The electrical contact buttons are formed on the sacrificial posts by a metallizing process in desired pattern using a mask. The sacrificial posts are made of a material that thermally decomposes upon application of heat without altering the carrier or the electrical contact buttons.

Abstract: LGA connectors are fabricated with buttons or spring contacts preformed to different heights to accommodate the initial topography of a typical module or PCB of a particular product type. This is accomplished during fabrication by measuring topographies of mating surfaces of a first electronic device and of a second electronic device; fabricating interposer contacts to form opposing non-planar sides having respective inverse topographies for contacting the mating surfaces; and sandwiching the interposer between the first and second electronic devices with the opposing sides in contact with respective mating serfaces. For those LGA types made by molding techniques such as the metal-in-polymer type (eg. Tyco Electronics MPI, or Shin Etsu RP) or the Metal-on-Elastomer type (IBM), using molds with the desired topography provides the desired LGA topography.

Abstract: Techniques for providing electrical connections are provided. In one aspect, an electrical connecting device is provided which comprises a plurality of compressible contacts; and a downstop structure surrounding at least a portion of one or more of the contacts, limiting compression of the contacts, and being configured to limit interaction between the contacts. The electrical connecting device may be further configured to have the plurality of compressible contacts have a first coefficient of thermal expansion and the downstop structure have a second coefficient of thermal expansion, the first coefficient of thermal expansion being substantially similar to the second coefficient of thermal expansion.

Abstract: A Planar Memory Module (PAMM) device comprising a generally planar card comprising a first side and a second side, the first side having a plurality of couplings and the second side having a plurality of connectors, a plurality of memory devices coupled to the card via a first portion of the plurality of couplings, and at least one hub chip coupled to the card via a second portion of the plurality of couplings. Each of the plurality of couplings is connected to an associated one of the plurality of connectors.

Abstract: The present disclosure relates generally to semiconductor, integrated circuits, and particularly, but not by way of limitation, to centrifugal methods of filling high-aspect ratio vias and trenches with powders, pastes, suspensions of materials to act as any of a conducting, structural support, or protective member of an electronic component.

Abstract: A method of joining two panels during the manufacturing of a LCD display employing the ODF (One Drop Fill) assembly technique. Using this method, the liquid crystal is deposited on one of the substrate's interior to the glue seal. The glue seal is pre-deposited near the peripheral edge of the substrates. The two substrates are then brought in contact with one another. The glue seal must be cured rapidly in order to seal the entire periphery while avoiding contamination between the glue seal, in the liquid state and the liquid crystal. The present invention teaches the use of a non-epoxy glue sealant, which is cured using photoinitiators. Experimental research has discovered the use of photons that are derived from laser beams and the control thereof. This allows for a faster, lower temperature cure.

Abstract: The present invention relates generally to thermally-conductive pastes for use with integrated circuits, and particularly, but not by way of limitation, to self-orienting microplates of graphite.

Abstract: Integrated optoelectronic chips or collections of chips on a module that have both electrical as well as optical interconnects offer many advantages in speed, power consumption and heat generation. Mixed signal types, however, pose significant packaging challenges. This invention describes a land grid array (LGA) interposer which can simultaneously connect electrical and optical signals from a module to a printed circuit board.

Abstract: A microelectronic device is made of a semiconductor substrate, a heat generating component in a layer thereof, and a body within the remaining semiconductor substrate. The body is made of materials which have a high thermal inertia and/or thermal conductivity. When high thermal conductivity materials are used, the body acts to transfer the heat away from the substrate to a heat sink.

Abstract: A carrier structure and method for fabricating a carrier structure with through-vias each having a conductive structure with an effective coefficient of thermal expansion which is less than or closely matched to that of the substrate, and having an effective elastic modulus value which is less than or closely matches that of the substrate. The conductive structure may include concentric via fill areas having differing materials disposed concentrically therein, a core of the substrate material surrounded by an annular ring of conductive material, a core of CTE-matched non-conductive material surrounded by an annular ring of conductive material, a conductive via having an inner void with low CTE, or a full fill of a conductive composite material such as a metal-ceramic paste which has been sintered or fused.

Abstract: An interposer having one or more hollow electrical contact buttons disposed in a carrier. The interposer is formed by disposing sacrificial posts in vias of the carrier. The electrical contact buttons are formed on the sacrificial posts by a metallizing process in desired pattern using a mask. The sacrificial posts are made of a material that thermally decomposes upon application of heat without altering the carrier or the electrical contact buttons.

Abstract: Methods for fabricating Land Grid Array (LGA) interposer contacts that are both conducting and elastic. Also provided are LGA interposer contacts as produced by the inventive methods. Provided is LGA type which utilizes a pure unfilled elastomer button core that is covered with an electrically-conductive material that is continuous from the top surface to the bottom surface of the button structure. In order to obviate the disadvantages and drawbacks which are presently encountered in the technology pertaining to the fabrication and structure of land grid arrays using electrically-conductive interposer contacts, there is provided both methods and structure for molding elastomer buttons into premetallized LGA carrier sheets, and wherein the non-conductive elastomer buttons are surface-metallized in order to convert them into conductive electrical contacts.

Abstract: A reworkable thermoset epoxy-containing material that allows for a reworkable assembly such as a reworkable waferlevel underfilled miocroelectronic package. A method for using the reworkable thermoset material in the formation of a microelectronic package using this material.

Abstract: Reworkable thermoset acid-cleavable acetal and ketal based epoxy oligomers can be B-staged into a tack free state. Compositions containing the epoxy oligomers are employed in a reworkable assembly such as a wafer-level underfilled microelectronic package.