Hughes Electronics Corporation

The Boeing Company

Hughes Aircraft Company

Richard Fanucchi

Daniel A Huang

Shih-Chang Wu

Yaozhong Liu

Ching P Lo

Steven R Felstein

Bruce A Igawa

Lydia H Simanyi

Paul G Rosadiuk

Gregory L Mayhew

Herbert Suyematsu

Shih Chou

Herbert T Suyematsu

Brill C Paet

Sutton Scoltock Jr

A circuit assembly suitable for RF signals has an integration plate and an RF distribution layer disposed adjacent to the integration plate. The RF distribution layer has an RF conductive layer between a first dielectric layer and a second dielectric layer. A DC distribution layer is disposed adjacent to the RF distribution layer. An RF input is coupled to the RF conductive layer. A module assembly includes an integrated circuit coupled to the RF conductive layer and the DC distribution layer. An RF output is coupled to the RF conductive layer.

RF circuit assembly

A chip-on-board electronic device includes an electronic device die affixed to a printed circuit board, and electrically interconnected thereto by wirebonds. The electronic device is protected by coating it with a layer of silicon oxynitride and, optionally, an overlying thin layer of a conformal coating such as parylene. Under some circumstances, a protective layer of an organic material may be used instead of the layer of silicon oxynitride. The chip-on-board electronic device may be protected with an overlying layer of the conformal coating.

Preparation of passivated chip-on-board electronic devices

An electrical device package includes an aluminum header having a gold-coated sealing surface and an electrical device mounted within the boundary defined by the sealing surface. An annular gold-coated stainless steel seal ring registers with the sealing surface of the header. An annular bonding layer of a gold-tin alloy lies between, and registers with, the sealing surface of the aluminum header and the stainless steel seal ring. The electrical device is fastened to the header using an electrically and thermally conductive epoxy adhesive. A stainless steel cover has a flange which is welded to the seal ring to form a hermetically sealed package.

Hermetic package for an electrical device

A connector assembly for interconnecting microwave integrated circuit modules where each module has at least one microwave interconnection pin and one DC power pin. A groundplane (28) supports the mounting surfaces (32) of the modules (10) and has a plurality of holes (38, 40) for receiving the interconnection pins (18) and the DC power pins (22) of the modules. A conducting layer (78) opposite the mounting surface of the groundplane receives microwave signals from the interconnection pins extending down through it and communicates these signals between different modules. Resilient bellows and stripline are used to ensure matched impedances and secure microwave connections. The DC power pins extend through the conducting layer (78) and isolating groundplane (28) and a DC power grid board (88) where an electrical connection is made with each DC power pin. The DC power pins are held in place in the power grid board using spring sockets so that the modules are installed on the connector assembly simply by inserting the pins into the respective holes and removed simply by pulling the modules away from the connector assembly.

Multiple layer microwave integrated circuit module connector assembly

Growing community of inventors

Fountain Valley, CA, United States of America

Richard Fanucchi