Harris Corporation

James B Nichols

Donald J Beck

Walter M Whybrew

Gary A Rief

Brett A Pigon

Steven E Wilson

Terry S Bryant

Kelly V Hillman

Douglas E Heckaman

Gregory M Jandzio

Edward J Bajgrowicz

Randy Eugene Boozer

Hector Deju

David M Holaday

Erik Granholm

Thomas K Buschor

A phased array antenna includes an antenna housing having a subarray assembly that supports beam forming network modules and an array face defining a ground plane substantially orthogonal to the subarray assembly. A plurality of millimeter wavelength patch antenna elements are positioned on the array face and each positioned adjacent a respective subarray assembly. The millimeter wavelength patch antenna elements each include a driven antenna element having a front and rear side and a parasitic antenna element positioned forward of the front side of the driven antenna element. A microstrip quadrature-to-circular polarization circuit is positioned rearward of the rear side of the driven antenna element and operatively connected to the driven antenna element. A single millimeter wavelength feed operatively connects the microstrip quadrature-to-circular polarization circuit with a respective adjacent beam forming network module supported on the orthogonal positioned subarray assembly.

Phased array antenna having stacked patch antenna element with single millimeter wavelength feed and microstrip quadrature-to-circular polarization circuit

The method of removing an epoxy bonded microelectronic component from a substrate includes the steps of heating a removal tool comprising a blade portion. The heated blade portion engages against the cured epoxy positioned around the edge of the component, and the epoxy is removed. The blade portion is positioned between an edge of the component and an adjacent portion of the substrate to lift the component from the substrate. A screwdriver receiving tip can also be attached to the removal tool. The screwdriver receiving tip includes an orifice that receives a screwdriver shaft that is freely rotatable therein. The removal tool is heated, thereby heating the screwdriver receiving tip and screwdriver shaft so that any screw to be removed is heated and removed. A tool is also disclosed for removing the microelectronic component from a substrate. The tool includes a removal tool comprising a proximal body and a distal heating end. A screwdriver receiving tip is removably mounted on the distal heating end of the removal tool. The screwdriver receiving tip has an orifice for receiving a screwdriver shaft.

Method for removing microelectronic circuits from substrates and tool used in removal

Method for removing microelectronic circuits from substrates and tool

A modular antenna architecture includes a plurality of joined-together flat, laminate-configured antenna sub-panels, in which RF signal processing (RF amplifier) modules are embedded within a very lightweight, honeycomb-configured support member, upon which respective antenna sub-array and control, power and beam steering signal distribution networks are respectively mounted. The thickness of the honeycomb-configured support member-embedded is sized relative to the lengths of the RF signal processing modules such that input/output ports at opposite ends of the RF modules are substantially coplanar with conductor traces on the front and rear facesheets, so that the RF modules provide the functionality of RF feed-throughs to provide RF signal coupling connections between the rear and front facesheets of the antenna sub-panel.

Lightweight antenna subpanel having RF amplifier modules embedded in

A thermosonic ribbon bonding process uses a combination of a relatively low temperature and a high frequency to bond a ribbon conductor to conductive bonding sites of a system level support structure, such as a space/airborne antenna, containing circuit components whose characteristics might otherwise be degraded at an elevated temperature customarily used in device-level thermosonic bonding processes. By relatively low temperature is meant a temperature no greater than the minimum temperature that would potentially cause a modification of the circuit parameters of at least one of the system's components. Such a minimum temperature may lie in a range on the order of 25-85.degree. C., while the ultrasonic bonding frequency preferably lies in a range of from 122 KHz to 140 KHz. For gold ribbon to gold pad bonds, this high frequency range achieves the requisite atomic diffusion bonding energy, without causing fracturing or destruction of the gold ribbon or its interface with the gold pad.

High frequency, low temperature thermosonic ribbon bonding process for

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Indialantic, FL, United States of America

James B Nichols