Abstract: A welder assembly includes a welding mechanism; a carriage plate, the welding mechanism fixedly coupled to the carriage plate; a translation assembly, the carriage plate fixedly coupled to the translation assembly, the translation assembly comprising a force sensor; a ball screw, the translation assembly moveably coupled to the ball screw; and, an axial drive motor coupled to the ball screw, wherein the ball screw is movably coupled to the translation assembly such that rotation of the axial drive motor forces linear translation of the translation assembly.

Abstract: A fluid cooled electrical assembly that includes a metal box, having a bottom wall, side walls and a top wall. A set of straight-edged pins, each smaller than 3 mm across in widest dimension, extend down from the top wall and up from the bottom wall. Also, electrical components are mounted on top of the top wall and on bottom of the bottom wall.

Abstract: A method of making a fluid cooled assembly that incorporates a base that forms a partial enclosure defining an interior void space and having a top wall that has a top surface and that defines at least one opening through the top wall to the void space, the base further defining fluid entrance and exit ports into the void space, the top wall being made of material that can be friction stir welded. A lid having a size and shape substantially conformal to the opening, having a top surface and a bottom surface that defines a set of downwardly extending pins, and that is formed of a material that can be friction stir welded to the base is placed into the opening so that the lid top surface is flush with the top surface of the base top wall and friction welding the lid to the base.

Abstract: An electronic module (10) for removing heat from a semiconductor die (41) and a method of making the electronic module (10). The electronic module (10) has a baseplate (11) mated with an isolation structure (23). The isolation structure (23) has three portions: a first portion is bonded to the top surface (12) of the baseplate (11), a second portion is bonded to the bottom surface (13) of the baseplate (11), and a third portion is bonded to a side (14) of the baseplate (11). A semiconductor die (41) is bonded to the first portion of the isolation structure (23) and another semiconductor die (41) is bonded to the second portion of the isolation structure (23). The baseplate (11) has a cavity (20) through which a fluid flows and transports heat away from each semiconductor die (41).

Abstract: An electronic module and a method for coupling a power lead (32) to a bond pad (28) on a semiconductor die (17) within the electronic module. A clip support (13) having a slot (27) is coupled to a baseplate (11) via an isolation structure (14). The semiconductor die (17) is coupled to the baseplate (11) via an isolation structure (19). The power lead (32) is coupled to the isolation structure (14). The clip support (13) is coupled to the semiconductor die (17) via a clip (29), wherein a first end of the clip (29) is inserted in the slot (27) and a second end of the clip (29) is compressively mated with the semiconductor die (17). Compressively mating the clip (29) with the semiconductor die (17) eliminates the need for bond feet, thereby increasing the reliability of the module.

Abstract: A heat dissipation apparatus having a base structure (11) and fins (29, 43) and a method for making the heat dissipation apparatus. The base structure (11) is formed as a molded porous preform structure having a top surface (12), a bottom surface (13), and grooves (14) in the bottom surface (13). A layer of dielectric material (17) is placed on the top surface (12) and the porous base structure is infiltrated with a conductive material, thereby bonding the layer of dielectric material (17) to the base structure (11). The grooves (14) are coated with a conductive epoxy and the fins (29) are inserted into the grooves (14) to form a heat dissipation apparatus (30). Alternatively, the fins (43) are formed when the porous base structure is infiltrated with the conductive material, thereby forming a unitary heat dissipation apparatus (44).

Abstract: A vacuum chuck (10) holds a semiconductor wafer (56) securely in place during manufacturing processes. An external chuck (12) has a hollow center portion receiving a spindle support (14) and shaft (16). A positive pressure is applied through the shaft to a nozzle assembly (26) that rests on the spindle support. The nozzle assembly is further housed within a cavity in an internal chuck (28) that rests within a cup in the external chuck. The nozzle assembly use a venturi jet (44) to convert the positive pressure to a vacuum. A plurality of vacuum ports (34 and 36) from the cavity of the internal chuck transfer the vacuum to an upper surface (40) of the internal chuck to hold the semiconductor wafer in place. A plurality of exhaust ports (30 and 32) from the cavity of the internal chuck exhaust gases radially across the upper surface (13) of the external chuck toward its perimeter to prevent undesired chemicals from reaching the underside of the semiconductor wafer.