Abstract: A flip chip interconnect structure is formed on a bump pad of a chip, and includes an under bump metallurgy (UBM) formed on the bump pad, and a solder bump formed on the UBM. The solder bump includes tin and is further doped with metallic particles that are capable of reacting with tin in the solder bump to from an inter-metallic compound due to a thermal effect produced in use of a later fabrication process or an operation on the chip. Furthermore, the material of the metal particles is selected from a group consisting of copper, silver and nickel.

Abstract: A game racquet includes separate head and handle portions which are separated by shock and/or vibration absorbing material. Both the head portion and the handle portion are bonded to the absorbing material and are thereby connected to each other.

Abstract: A handle assembly for a sports racquet having a head portion. The handle assembly includes an elongate handle, a pallet, a pad and a cover layer. The elongate handle is coupled to the head portion. The pallet is coupled to and longitudinally extends along the handle. The pallet has a proximal portion, a distal portion and a gripping portion disposed between the proximal and distal portions. The gripping portion is stepped down with respect to the proximal and distal portions to form a peripheral recess. The pad has an inner surface and an outer surface. The inner surface of the pad is coupled to the gripping portion of the pallet. The cover layer extends over and substantially covers the pad, and generally covers the proximal and distal portions of the pallet. The cover layer can include indicia including graphical indicia, alphanumeric indicia, or combinations thereof.

Abstract: A package of racquet string includes a continuous piece of string which is divided into first and second portions. The first portion of string has a length which is sufficient to string one-half of the main strings of a game racquet. The second portion of string has a length which is sufficient to string the remainder of the main strings and all of the cross strings of the racquet.

Abstract: A game racquet includes separate head and handle portions which are separated by shock and/or vibration absorbing material. Both the head portion and the handle portion are bonded to the absorbing material and are thereby connected to each other.

Abstract: A test assembly for an integrated circuit package includes a package substrate and a test board. The package substrate is provided with a plurality of first contact pads linked in a first daisy chain pattern. The test board has a plurality of second contact pads linked in a second daisy chain pattern and a plurality of test pads. All of the second contact pads are divided into a plurality of groups each connected to one pair of test pads. All of the second contact pads in any group are arranged in a line. The present invention further provides a method of testing an integrated circuit package utilizing the aforementioned package substrate and test board.

Abstract: An energy-saving heat exchanger for a VOC abatement system. The energy-saving heat exchanger includes a fresh air chamber for receiving fresh air from a blower; a heated air chamber for receiving heated air from a secondary heat exchanger of the VOC abatement system; a mixed air chamber provided at the outlet ends of the fresh air chamber and heated air chamber; and a heat exchange chamber leading from the heated air chamber and disposed in thermally-conductive contact with the fresh air chamber. An oxygen detector measures the oxygen composition of air flowing from the mixed air chamber and operates a damper which controls flow of air from the heated air chamber to the mixing chamber.

Abstract: A handle assembly for a sports racquet having a head portion. The handle assembly includes an elongate handle, a pallet, a pad and a cover layer. The elongate handle is coupled to the head portion. The pallet is coupled to and longitudinally extends along the handle. The pallet has a proximal portion, a distal portion and a gripping portion disposed between the proximal and distal portions. The gripping portion is stepped down with respect to the proximal and distal portions to form a peripheral recess. The pad has an inner surface and an outer surface. The inner surface of the pad is coupled to the gripping portion of the pallet. The cover layer extends over and substantially covers the pad, and generally covers the proximal and distal portions of the pallet. The cover layer can include indicia including graphical indicia, alphanumeric indicia, or combinations thereof.

Abstract: A game racquet includes a head portion and a pair of removable handle portions. The head portion is adapted to support racquet strings and includes a pair of side portions which curve downwardly and inwardly at the bottom of the head. Each handle portion includes a substantially straight bottom portion and a curved top portion which is frictionally engaged with, and removable from, one of the side portions of the hoop. Dampening or resilient material is positioned between the frictionally engaged portions of the side portions and the handle portions.

Abstract: A two-piece grommet assembly for a sports racquet. The sports racquet includes a frame having a plurality of grommet holes and at least one racquet string. The grommet assembly includes first and second grommet members. The first grommet member includes a first strip and at least two spaced-apart barrels extending generally perpendicular from the first strip. Each barrel includes a first string hole and is configured to extend through a separate grommet hole in the frame. The second grommet member includes a second strip and at least two spaced-apart pegs extending generally perpendicular from the second strip. Each peg has a second string hole. The second strip contacts the first strip, and the pegs extend into the barrels such that the first and second string holes are generally co-axially aligned. The first grommet member is configured to substantially isolate the pegs and the second strip from the frame.

Abstract: A game racquet includes separate head and handle portions which are separated by shock and/or vibration absorbing material. Both the head portion and the handle portion are bonded to the absorbing material and are thereby connected to each other.

Abstract: A game racquet includes separate head and handle portions which are separated by shock and/or vibration absorbing material. Both the head portion and the handle portion are bonded to the absorbing material and are thereby connected to each other.

Abstract: A game racquet includes separate head and handle portions which are separated by shock and/or vibration absorbing material. Both the head portion and the handle portion are bonded to the absorbing material and are thereby connected to each other.

Abstract: A tennis racquet is provided with increased resistance against twisting of the racquet frame by increasing the width of the frame just above the area where the yoke and Y-shaped arms of the throat merge with the U-shaped upper portion of the head. The width of the frame in that area is preferably at least 0.600 inch, and more preferably about 0.640 inch. The ratio of the width and the height is about 0.54. The increased resistance to twisting permits the frame to be wider, thereby increasing the maximum width of the strings, reducing the difference between the maximum string width and maximum string length, and increasing the polar moment of inertia of the racquet.

Abstract: A game racket includes elongated main strings which extend through a slot in a yoke portion of the head. In one embodiment the lower ends of the main strings pass through string holes in a second throat bridge below the first throat bridge. In another embodiment the lower ends of the main strings pass through string holes in the arms of the throat of the racket.

Abstract: A tennis racket is made lighter than conventional tennis rackets yet has a higher center of percussion and a higher frequency of vibration. The head of the racket is ovoid, and the widest part of the head is above the longitudinal midpoint of the head. The longitudinal strings are fan-shaped and diverge outwardly and upwardly from the bottom of the head.