Abstract:
An integrated circuit package comprising a substrate having terminal pads arranged in at least one row along a perimeter of a surface of the substrate, vias connecting the terminal pads directly to connectors on an opposite side of the substrate, a semiconductor chip mounted on the substrate, inside the perimeter, the chip having bond pads located on a surface of the chip, and a plurality of insulated bond wires, each of the bond wires extending from a bond pad on the chip to a terminal pad on the substrate, the substrate being sized and shaped to provide a sufficient number of rows of terminal pads and associated vias so that horizontal traces through the substrate are not required.
Abstract:
A microchip wire bonder for bonding insulated bond wire to a surface, the microchip wire bonder comprising: a) a body having a stationary electrical contact configured to receive an electrical potential; b) a bond head attached to the body, to position the insulated bond wire adjacent to the surface; c) a rotating wire spooler attached to the body, to hold the insulated bond wire and to advance the insulated bond wire from the spooler to the bond head as needed; and d) an electrical contact device comprising: i) a rotating electrical connector fixed to the rotating wire spooler and being sized and shaped to receive an electrical connection with an uninsulated portion of the insulated bond wire at one end, and having a moving electrical contact at the other end, the two ends being electrically connected; and ii) a conductive bearing configured to electrically couple the moving electrical contact of the electrical connector and the stationary electrical contact; wherein, upon connecting the stationary electrical contact to an electrical potential, and upon connecting the bond wire to the electrical connector, the insulated bond wire will acquire the electrical potential.
Abstract:
A wire bonder for bonding an insulated wire (100) to a surface (110) is disclosed. The bonder includes a bond head (106, 114), having a bonding position adjacent to said surface (100) and a wire preparation position spaced apart from the surface (110). There is a wire holder (106) on the bond head (106, 114), the wire holder (106) being sized and shaped to permit a free end of the insulated wire (100) to extend from the wire holder (106) when the bond head (106, 114) is in the spaced apart position. A source (102) of insulated wire (100) for said bond head (106, 114) is provided as well as an electrical discharge wand (112) positioned adjacent to said bond head (106, 114) when the bond head (106, 114) is in the spaced apart position. The wand (112) directs sufficient electricity at the extending free end (104) of the insulated wire (100) to form a bond ball on the free end. A ground (124) associated with the insulated wire (100), is provided the ground (124) being sized and positioned to conduct electrical energy away from the insulated bond wire (100) to prevent the insulation on the bond wire remote from the free end (104) from being damaged.