摘要:
An integrated circuit chip packaging assembly having a first and second package side. An integrated circuit chip has a substrate side and an active circuit side. The chip includes integrated circuit devices formed on the active circuit side. The active circuit side of the chip is on the first package side. The die pad has at least one runner member extending therefrom, which may be bent toward the first package side. The active circuit side of the chip is attached to the die pad. The die pad is on the first package side relative to the chip. The package mold compound is formed over the die pad, at least part of the chip, and at least part of the runner member(s). At least part of the substrate side of the chip and/or at least part of the runner member(s) may not be covered by the package mold compound.
摘要:
According to an embodiment of the invention, a system, operable to facilitate dissipation of thermal energy, includes a mold compound, a die, a first lead frame, and a second lead frame. The die is disposed within the mold compound, and in operation generates thermal energy. The first lead frame is disposed at least partially within the mold compound and is operable to facilitate transmission of a signal. The second lead frame is disposed at least partially within the compound, at least partially separated from the first lead frame, and is operable to facilitate a dissipation of thermal energy.
摘要:
An integrated circuit chip packaging assembly having a first and second package side. An integrated circuit chip has a substrate side and an active circuit side. The chip includes integrated circuit devices formed on the active circuit side. The active circuit side of the chip is on the first package side. The die pad has at least one runner member extending therefrom, which may be bent toward the first package side. The active circuit side of the chip is attached to the die pad. The die pad is on the first package side relative to the chip. The package mold compound is formed over the die pad, at least part of the chip, and at least part of the runner member(s). At least part of the substrate side of the chip and/or at least part of the runner member(s) may not be covered by the package mold compound.
摘要:
According to one embodiment of the invention, a method of die attach includes providing a chip, forming a heat conductive metal layer outwardly from a backside of the chip, and coupling the chip to a substrate. The heat conductive metal layer has a thickness of at least 0.5 mils.
摘要:
A pressure wave supercharger for internal combustion engines, particularly those in motor vehicles, has a rotor, driven in proportion to the engine speed, with a plurality of rotor cells oriented parallel to its axis of rotation. The cells are connected, at one end, in the exhaust gas flow between the exhaust manifold and the exhaust system and, at the other end, in the intake air stream between the air intake and the intake manifold. Placed on the rotor and concentric therewith is a rigid vibration damping ring, which is contacted by a support, firmly attached to the rotor, so as to create friction. The friction produced by sliding of the rigid ring on the support, acts to absorb a large part of the vibration energy of the rotor and thereby, correspondingly, to eliminate the production of annoying noise.
摘要:
According to an embodiment of the invention, a package comprises a lead frame, a first passive component, a first wire bond connection, and a mold compound. The lead frame has a first pair of resilient arms. The first passive component is disposed between the first pair of resilient arms. The first wire bond connection is disposed between the die and a portion of the lead frame adjacent the first passive component. The first wire bond connection is operable for communication between the die and the first passive component. The mold compound is disposed at least partially around the lead frame, the first passive component, the first wire bond connection, and the die.
摘要:
An integrated circuit (IC) package 100 comprises an IC 102 and leads 104 coupled to the IC. Each lead has a first end 106 configured to be coupled to the integrated circuit and a second end 108 configured to pass through one of a plurality of mounting holes 110 extending through a mounting board 112. The leads comprise at least one positioning lead 114 comprising a stop 118 being a continuous part of the positioning lead and having a lateral dimension 120 greater than a diameter 122 of a first hole 124 of the plurality of mounting holes. The leads further comprise at least one non-positioning lead 116 having a continuous uniformly shaped body 130 with a lateral dimension 132 less than a diameter 134 of a second hole 136 of the plurality of mounting holes. The stop limits an extension of the non-positioning lead through the second hole.
摘要:
A semiconductor package comprising a die adjacent a lead frame die pad, said lead frame die pad adapted to dissipate heat from the die. The package further comprises a thermally-conductive material abutting the die and a heatsink abutting the thermally-conductive material, said heatsink facing a direction opposite from the lead frame die pad.
摘要:
A method for coupling a heat slug to a lead frame, comprising aligning a heat slug and a lead frame depositing a material between the heat slug and the lead frame, and clamping together the heat slug and the lead frame.
摘要:
An interference interlock between leadframe features and a mold compound is provided in a packaged semiconductor device by exposing at least one predetermined surface area to an etching process prior to a molding step. This produces an etched recess with a recessed wall delimited by a step wall, generally perpendicular and adjacent to the recessed wall. The step wall is partially undercut by etching. During the molding step, the recessed wall and the step wall are both contacted by and embedded in the molding compound.