The Bergquist Company

David C DeGree

Dallas R Humphrey

Roger A West

Carl R Bergquist

Herbert J Fick

Bruce H Juenger

An apparatus for carrying semiconductor mounting devices in back-to-back arrangement is disclosed in which a central substantially planar thermally conductive support member is provided with recesses in its top and bottom surfaces of an interlocking congruent shape with the semiconductor devices to be received such that each semiconductor mounting device assembled therein is positively positioned and locked in place and fixed in a manner such that the semiconductor elements mounted on the layered or laminar elements connect directly to circuitry carried on the surfaces of the support member.

Dual sided laminated semiconductor mounting

A mounting pad means for use in combination with solid-state semiconductive translating devices and including a base pad with flange walls extending from said base pad, and with device mounting pad means being secured to the surface of the base pad and comprising a thin layer of silicone base rubber. The base pad an flange walls are formed of a generally rigid laminate with a core having outer metal foil layers disposed on opposite surfaces thereof, and wherein the core is composed of a thin layer of silicone base rubber.

Mounting base pad means for semiconductor devices and method of

A thermally conductive laminate structure for use as a mounting base and/or chassis attachment member in combination with solid-state electronic devices, the laminate preferably comprising up to five layers including a pair of outer metallic layers disposed on opposite sides of center composite layers of electrically insulative layers separated by an interposed metallic layer. The center insulative layers are films of polyimide(amide) material, with the polyimide(amide) film being filled with a quantity of aluminum oxide, boron nitride, or other suitable particulate solid in an amount ranging from between about 30% and 100% by weight of polyimide(amide) solids. The outer layers are metallic, with the base member being a metallic pad of copper or aluminum, and with the opposed metallic layer being copper and arranged in a printed circuitry pattern or array.

Thermally conductive, electrically insulative laminate

A mounting pad means for use in combination with solid-state semiconductive translating devices and including a base pad with flange walls extending from said base pad, and with device mounting pad means being secured to the surface of the base pad and comprising a thin layer of silicone base rubber. The base pad and flange walls are formed of a generally rigid laminate with a core having outer metal foil layers disposed on opposite surfaces thereof, and wherein the core is composed of a thin layer of silicone base rubber.

Method of making a mounting base pad for semiconductor devices

A thermally conductive electrically insulative laminate for use as a mounting pad and electrical chassis barrier for use with solid-state electronic devices. The pad includes a number of bores with tubular projections extending outwardly therefrom for insulatively protecting the shanks of the mounting screws, bolts or other conductive materials from contact with the substrate. Additionally, the tubular projections are provided with radially extending retention burrs for mechanically holding the mounting pad in place on a substrate pending actual mounting of a semiconductor device thereon.

Mounting pad with tubular projections for solid-state devices

A thermally conductive electrically insulative laminate for use as chassis barriers in combination with solid-state electronic devices, the laminate comprising at least three layers and including a pair of outer layers disposed on opposite sides of a center layer. The center layer comprises a film of a polyimide (amide) filled with a quantity of either aluminum oxide or boron nitride particulate solids and included in an amount ranging from between about 10% to about 50% by volume. The outer layers consist essentially of silicone base rubber, and are preferably filled with a quantity of aluminum oxide or boron nitride particulate solids in an amount ranging from between about 25% and 50% by volume.

Growing community of inventors

Burnsville, MN, United States of America

David C DeGree