Sundstrand Corporation

William K Anderson

Richard J Hoppe

Steven E Jackson

Merle L Bennett

A compression loaded semiconductor device package (40) in accordance with the invention includes a cylindrical semiconductor device (54) having a first region (66) on a first face, a control region (68) on the first face having a central portion (70) and a plurality of projections (72) extending radially from the central portion with the radial projections being symmetrically disposed around the periphery of the first face and a second region (74) on a second face with the second face being opposed to the first face; an electrically conductive contract (48) having an external control terminal (88), an annulus (84) electrically connected to the external control terminal, a plurality of projections (82) electrically connected to the annulus, projecting radially inward and a center (80) electrically connected to the radially inward projections and to the control region; and first and second annular insulators (112 and 114) each insulator having a plurality of faces, the upper cover being bonded to a first face (116) of the first insulator, a second face of the first insulator being bonded to a first attachment ring (122) with the first attachment ring being bonded to the annulus, the lower cover being bonded to a first face (116) of the second insulator, a second face (118) of the second insulator being bonded to a second attachment ring (124) with the second attachment ring being bonded to the annulus, the bonds (120) defining a sealed chamber containing the semiconductor device.

Compression loaded semiconductor device

A fitting that is adapted for use between two adjacent frame members that are mechanically isolated from one another. The fitting has two flanged members one fixed to each frame member and a pressurized liquid coolant flow channel with a pair of bellows units on opposite sides of an intermediate ring that is loosely mounted on the outer surface of a spool attached to one member.

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Rockford, IL, United States of America

William K Anderson