Fry's Metals, Inc.

Other

Gerard R Minogue

Bawa Singh

Brian Lewis

Attiganal Narayanaswamy Sreeram

Michael James Liberatore

Leszek Hozer

Sanyogita Arora

John P Laughlin

Anthony E Ingham

David V Kyaw

Michael T Marczi

Robert H Detig

Dietmar C Eberlein

Kenneth Reilly

A solder preform having multiple layers including a solder layer filled with additives interposed between two unfilled layers for improved wettability. A solder preform having a sphere which contains a solder material filled with additives, and an unfilled surface layer for improved wettability. A thermal interface material having a bonding component and an additive component which is a CTE modifying component and/or a thermal conductivity enhancement component. Active solders containing intrinsic oxygen getters.

Thermal interface material and solder preforms

A method for preparing particles to retain a charge such that the particles are rendered electrostatically or electrokinetically mobile. The method involves coating the particles with a coating medium which facilitates attachment of a charge director material, and contacting the particles with the coating medium thereon with a charge director medium to impart a positive or negative charge thereto and thereby render the particles electrostatically or electrokinetically mobile. Electrostatically and electrokinetically mobile particles for use in an electrostatic or electrokinetic deposition process. The particles include a coating medium and a charge director on particle bodies.

Coated solder metal particles

A method for applying particles in a pattern to a substrate, either directly or by use of an intermediate tool, by electrokinetic or electrostatic means by exposing the substrate to particles in a fluid medium to electrokinetically or electrostatically deposit the particles onto the substrate.

Method of applying a pattern of particles to a substrate

Coating solder metal particles with a charge director medium

A mist of liquid coolant is introduced into the path of atomized, molten, solder droplets. The mist and other conditions within the chamber are engineered to enable the liquid coolant droplets in the mist to contract the surfaces of molten solder droplets and be flash vaporized upon contact, thereby rapidly extracting heat from the molten solder droplets and accelerating cooling and solidification to produce an enhanced solder ball as a product of this process.

Rapid surface cooling of solder droplets by flash evaporation

A thermal interface material for use in electronic packaging, the thermal interface material comprises a solder with relatively high heat flow characteristics and a CTE modifying component to reduce or prevent damage due to thermal cycling. The thermal interface material comprises an active solder that contains indium and an intrinsic oxygen getter selected from the group consisting of alkali metals, alkaline-earth metals, refractory metals, rare earth metals and zinc and mixtures and alloys thereof. Lastly, damage due to an electronic package due to thermal cycling stress is reduced by using an insert in a lid of an electronic device package wherein the insert has a coefficient of thermal expansion that is between about that of the lid and about that of a semiconductor substrate.

Thermal interface material and heat sink configuration

A mist of liquid coolant is introduced into the path of atomized, molten, solder droplets. The mist and other conditions within the chamber are engineered to enable the liquid coolant droplets in the mist to contact the surfaces of molten solder droplets and be flash vaporized upon contact, thereby rapidly extracting heat from the molten solder droplets and accelerating cooling and solidification to produce an enhanced solder ball as a product of this process.

A method of efficiently coating surfaces of solder alloy spheres by a vapor deposition process using a solvent-based coating solution including a low viscosity organic material and at least one solute, such as a surfactant. The method surface coats solder alloy spheres to minimize or eliminate physical and chemical damage to surfaces of spheres prior to use in surface mounting applications.

Method of protective coating BGA solder alloy spheres

A container device with an adjustable volume is provided for holding and immobilizing solder spheres used in manufacturing printed circuit boards and other electronic assemblies. The container device includes a hollow containing portion having a first terminal end and a second terminal end with a side wall connecting the first and second terminal ends and a removable sealing mechanism connected to the first terminal end. An adjustable piston is positioned within the containing portion having a length and a width such that when the piston is inserted into the containing portion of the container device, the piston exerts a sufficient pressure against the side wall of the containing portion to rigidly position the piston within the container device. The pressure exerted by the piston forms a seal between the piston and the side wall of the containing portion, thereby preventing solder spheres contained therein from slipping between the piston and the side wall. The piston is positioned within the containing portion at an adjustable and appropriate position such that the piston substantially fills any empty volume of the containing portion and presses substantially against a mass of solder spheres to immobilize solder spheres during transport and storage. The invention also provides a method of immobilizing solder spheres during transport and storage.

Container device with adjustable volume for immobilizing solder spheres and method thereof

A containing device and method to hold and immobilize solder spheres during storage and transport including a container portion having an open top terminal end and an opposing closed bottom terminal end with at least one side wall connecting each terminal end, a removably attachable lid to seal the container portion and a lid insert for insertion into the container portion to immobilize solder spheres contained therein. In one embodiment, the lid insert is comprised of compressible material, such as a polymeric foam, whereby insertion of the lid insert into the container portion causes compression of the lid insert substantially adjacent to the side wall of the container portion, a bottom planar surface of the lid and an uppermost surface layer of solder spheres to completely fill any open or dead space within the containing device. The lid insert forms a mechanical seal which immobilizes the solder spheres until the lid insert is removed from the containing device.

Growing community of inventors

Kinnelon, NJ, United States of America

Gerard R Minogue