Abstract: A package type semiconductor device comprising: a semiconductor chip having a semiconductor part; a main electrode for connecting to a first region of the semiconductor part; a control wiring layer for connecting to a second region of the semiconductor part; a blocking member electrically isolated from the control wiring layer; a first metallic layer; a protection film disposed among the main electrode, the control wiring layer and the blocking member; and a metal block for connecting to the main electrode through the first metallic layer. The chip, the main electrode, the control wiring layer, the blocking member, and the metal block are packaged. The blocking member is disposed between the main electrode and the control wiring layer.

Abstract: A semiconductor element, and a pair of insulation substrates sandwiching the semiconductor element therebetween forms a substrate unit. The substrate unit is press-fitted in a recess provided between first radiation block and cooling block. The press-fitting of the substrate unit is performed by a second radiation block which is screwed to push the first radiation block toward the cooling block. A high thermal-conductive radiation material is disposed at the interfaces between each of the insulation substrates and each of the blocks to keep adhesiveness therebetween.

Abstract: A heat sink for semiconductor components or similar devices, especially produced from an extruded aluminum alloy. The heat sink comprises cooling ribs which rise at a distance from a base plate and which are clamped in an insert groove made in the surface of the base plate, laterally limited by longitudinal or intermediate ribs with a coupling base that has an approximately rectangular cross-section. The coupling bases are held in their insert grooves in a form-fit and are cold-welded with the base plate at least in some sections. Cross ribs extend at a distance to one another on the surfaces of the intermediate ribs and have the form of upset heels that are linked with the coupling base in a form-fit.

Abstract: A retention module firmly secures a heat sink for a computer chip. The retention module is oriented about the computer chip on a circuit board. The retention module has a rotatable wire form that has two loops. When the rotatable wire form is rotated, the two loops press against an impingement shelf on the heat sink, forcing the heat sink against the retention module and the computer chip. The two loops are angularly offset to each other, thus compensating for torsion lag between the two loops when the two loops are pressed against the impingement shelf.

Abstract: A heat sink clip (20) includes a main body, a post (26), and a spring (27). The main body includes a longitudinal portion (31), first and second locking arms (32, 24) extending downwardly from opposite ends of the longitudinal portion. The longitudinal portion defines a through aperture (36) in a middle thereof. Two hooks (38, 46) are respectively formed at free ends of the first and second locking arms for engagement with catches (52) of a socket (52). The post has a pressing portion at a bottom thereof for being fittingly received in a blind hole (16) of a heat sink (10). The post extends through the through aperture of the longitudinal portion. The resilient element is disposed around the post below the longitudinal portion.

Abstract: The stackable power semiconductor module comprises electrically conductive base plates, an electrically conductive cover plate and a plurality of semiconductor chips. The semiconductor chips are arranged in groups of several on separate base plates in preassembled submodules. The base plates are moveable towards the cover plate. The submodules are paralleled inside the module housing. The submodules are fully testable according to their current ratings. Altering the number of submodules paralleled inside the housing can vary the overall current rating of a module.

Abstract: A method and apparatus for cooling an electronics chip with a cooling plate having integrated micro channels and manifold/plenum made in separate single-crystal silicon or low-cost polycrystalline silicon. Forming the microchannels in the cooling plate is more economical than forming the microchannels directly into the back of the chip being cooled. In some embodiments, the microchannels are high-aspect-ratio grooves formed (e.g., by etching) into a polycrystalline silicon cooling base, which is then attached to a cover (to contain the cooling fluid in the grooves) and to the back of the chip.

Abstract: A semiconductor device includes two semiconductor chips that are interposed between a pair of radiation members, and thermally and electrically connected to the radiation members. One of the radiation members has two protruding portions and front ends of the protruding portions are connected to principal electrodes of the semiconductor chips. The radiation members are made of a metallic material containing Cu or Al as a main component. The semiconductor chips and the radiation members are sealed with resin with externally exposed radiation surfaces.

Abstract: An apparatus and method are provided for dissipating heat from an electronic component mounted in a conductive enclosure and for shielding electromagnetic radiation generated by the electronic component. A heat sink is configured to be mounted in thermal contact with the electronic component. An electrical conductor is operatively connected to the heat sink and configured to provide electrical contact between the heat sink and a surface of the conductive enclosure, thereby at least partially shielding the electromagnetic radiation generated by the electronic component.

Abstract: An apparatus in one example comprises one or more adhesives that serve to provide at least primary attachment of a heat sink with one or more electrical components coupled with a circuit board.

Abstract: A heat transfer apparatus comprises a thermally conductive member including a base having one or more surfaces adapted to absorb heat from an electronic component, and a mounting assembly including at least one mounting member directly coupled to the base and for direct attachment to the electronic component so that loading forces for mounting on it the electronic component are not directly applied to the base. The thermally conductive member is a graphite-based material. A compliant force applying mechanism is mounted generally on the base for controlling forces applied on the base.

Abstract: An engageable assembly comprising a socket and a heat sink. The socket comprises a surface having an array of mounting holes that receive connector pins of an electronic device in order to mount the electronic device within the perimeter of the socket. The heat sink has a footprint extending beyond the perimeter of the socket and is in thermal contact with the electronic device when it is engaged with the socket. The socket and the heat sink include cooperative alignment tabs and alignment slots located outside the array of mounting holes. A locking lever is pivotally connected to an arm extending from the socket to a position outside of the footprint of the heat sink.

Abstract: An attaching device is provided for mounting and fixing a semiconductor device and a heat sink provided on the semiconductor device on a board. The attaching device includes a base part fixed to the board, a rotation member provided to the base part rotatably, the rotation member rotated and received at the base part so that the semiconductor device is fixed to the board, and a press mechanism that presses the heat sink to the semiconductor device when the rotation member is rotated.

Abstract: A cooling device is provided for dissipating heat from a heat source such as, e.g., an integrated circuit. The cooling device includes a heat sink having a fin structure, a blower assembled with the heat sink for moving air through the fin structure, and a spring attachment mechanism for clamping the heat sink to the heat source.

Abstract: A power semiconductor device that uses a lead frame for making connection to a semiconductor device and has a structure less subject to fatigue failure at the connection part of the lead frame. A mold resin of a casing (14) is used for integrally covering the lead frame (6, 7, 13), semiconductor device (1), and metal block (15) serving as a substrate mounting the semiconductor device (1). The mold resin surrounding the lead frame (6) and semiconductor device (1) strengthens the joint therebetween, resulting in the power semiconductor device less subject to fatigue failure at the connection part of the lead frame (6).

Abstract: An electronic assembly comprises a support board, an integrated circuit chip interconnected and coupled to the support board, and a thermal-gap-filler pad placed over the integrated circuit chip and in contact with an external device to dissipate heat generated by the integrated circuit chip. The electronic assembly further comprises a standoff structure disposed adjacent the thermal-gap-filler pad and coupled to the support board, the standoff structure configured to prevent excessive force from being applied onto the thermal-gap-filler.

Abstract: A heat sink core assembly includes a base plate fabricated from a first material. The base plate comprises an opening therein, and the opening defines an insert engagement surface. An insert is fabricated from a second material different from the first material. The insert includes a base plate engagement surface and the insert is inserted into the opening. At least one of the insert engagement surface and the base plate engagement surface includes a curved portion. The curved portions oppose one another when the insert is engaged to the opening to produce a predetermined contact force in directions parallel and perpendicular to the opening in the base plate. When the opposed surfaces are crimped together, gaps or voids between the surfaces are avoided.

Abstract: A semiconductor assembly comprises a semiconductor package comprising a substrate, a die positioned on the substrate, and a lid positioned on the die. A receiver receives the semiconductor package. A clamp engages the lid of the semiconductor package and the receiver and applies a clamping force to the lid of the semiconductor package to hold the semiconductor package to the receiver. A spring member having a clamp contact portion and a substrate contact portion is positioned between the clamp and the substrate of the semiconductor package so that the clamp contact portion of the spring member contacts the clamp and so that the substrate contact portion of the spring member contacts the substrate of the semiconductor package, the spring member transferring a portion of the clamping force from the lid of the semiconductor package to the substrate of the semiconductor package.

Abstract: A heat sink mounting assembly includes a socket (90) having first and second side, a retaining clip (10) cooperating with the socket to sandwich a heat sink (70) therebetween. A pair of ears (92) is formed at the first and second sides of the socket. The retaining clip includes a pressing body (11) having first and second ends, a first leg (14) extending from the first end thereof and engaging with one ear, a spring (50) attached to the pressing body, and a second leg (30) attached to the second end thereof and biased by the spring. When the second leg is pressed down toward the socket, the spring biases the second leg upwardly, so that the second leg is resiliently engaged with the other ear. Thus, the heat sink is secured between the socket and the retaining clip.

Abstract: An apparatus for controlling the temperature of an electronic device utilizes a thermal head attached to a base structure including an integral isolation arrangement. For example, the isolation arrangement can be formed as a planar spring defined by slots in the base structure. The base structure has a manifold configured to route refrigerant fluid between the thermal head and components of a refrigeration system. The isolation arrangement is normally planar but is movable to facilitate engagement of the thermal head with the electronic device. The isolation arrangement also compensates for variations in the planar orientation of the electronic device.

Abstract: A semiconductor device includes two semiconductor chips that are interposed between a pair of radiation members, and thermally and electrically connected to the radiation members. One of the radiation members has two protruding portions and front ends of the protruding portions are connected to principal electrodes of the semiconductor chips. The radiation members are made of a metallic material containing Cu or Al as a main component. The semiconductor chips and the radiation members are sealed with resin with externally exposed radiation surfaces.

Abstract: A heat dissipation assembly includes a printed circuit board (70) with a heat-generating device (74) mounted thereon, a heat sink (60) mounted on the heat-generating device for dissipating heat therefrom, a retaining device (1) and a locating member (50). The retaining device includes a pair of spaced pressing portions (14) pressing on the heat sink, and a pair of pivot portions (34) pivotally engaged with the pressing portions respectively. The locating member includes a baseplate (52) located at an underside of the printed circuit board, and four pins (54) extending from the baseplate. The pins pass through the printed circuit board and the heat sink. Two of the pins are engaged by the pressing portions, and the other two pins are engaged by the pivot portions when the pivot portions are pivotally moved toward the printed circuit board.

Abstract: A semiconductor device includes a semiconductor chip generating heat, a pair of heat sinks, which face each other, to conduct heat from both surfaces of the chip, a pair of compressible insulating sheets, and a mold resin covering the chip, the heat sinks, and the sheets such that the sheets are exposed from the surface of the resin. The mold resin is prevented from covering the outer surfaces of the heat sinks, which are pressed by mold parts, and breakage of the chip is avoided during molding. The plates are insulated by the sheets, so no dedicated insulating sheets for the heat sinks are needed after the device is completed.

Abstract: A semiconductor device includes two semiconductor chips that are interposed between a pair of radiation members, and thermally and electrically connected to the radiation members. One of the radiation members has two protruding portions and front ends of the protruding portions are connected to principal electrodes of the semiconductor chips. The radiation members are made of a metallic material containing Cu or Al as a main component. The semiconductor chips and the radiation members are sealed with resin with externally exposed radiation surfaces.

Abstract: A retaining apparatus for securely fastening a heat sink to a CPU includes a press plate part, a hold bar part, and a retaining bar part. The retaining apparatus is installed by engaging hook legs of the hold bar and retaining bar parts with a CPU base. In this configuration, the press plate of the retaining apparatus presses against and secures the heat sink.

Abstract: A semiconductor module includes a circuit substrate composed of a wiring pattern, an electrical insulating layer and a thermal radiation board, and in use is fixed to an external thermal radiation member, in which the electrical insulating layer is composed of a thermal conductive mixture containing 70-95 wt % of an inorganic filler and 5-30 wt % of a thermosetting resin. A warping degree of the circuit substrate with respect to the external thermal radiation member is at most 1/500 of a length of the substrate, and the circuit substrate warps to protrude toward the thermal radiation board as the temperature rises. Accordingly, the thermal radiation property does not deteriorate even when the temperature rises in use. At a time of fixing the circuit substrate to the external thermal radiation member, the thermal resistance is kept to be a sufficiently low level.

Abstract: A heat sink assembly includes a heat sink (10), a mounting frame (20) for mounting the heat sink to an electronic component (60), and a grease cover (40). The heat sink includes a base (12) on which thermal grease (16) is spread. The mounting frame includes a body (22) defining an opening (24) for extension of the electronic component therethrough to contact the base. The body includes longitudinal and lateral beams (25, 27) surrounding the electronic component. A plurality of fasteners (26) is formed on the longitudinal beams and engaged in cutouts (16) defined in the base, respectively. The grease cover is detachably attached to the mounting frame, and includes a main portion (42) covering the opening of the mounting frame and the thermal grease, and an ear (44) extending from the main portion beyond one border of the mounting frame for facilitating operation of the grease cover.

Abstract: A power amplifier module assembly (100) includes a PA module (102) having a flange (104) and a mounting bracket (106) coupled thereto. A thermally conductive pad (108) having an electrically conductive surface (110) that couples to the mounting bracket (106) and the flange (104) via a chassis (204) so as to provide both shielding and thermal dissipation to the PA module (102).

Abstract: A semiconductor device includes a semiconductor chip generating heat, a pair of heat sinks, which face each other, to conduct heat from both surfaces of the chip, a pair of compressible insulating sheets, and a mold resin covering the chip, the heat sinks, and the sheets such that the sheets are exposed from the surface of the resin. The mold resin is prevented from covering the outer surfaces of the heat sinks, which are pressed by mold parts, and breakage of the chip is avoided during molding. The plates are insulated by the sheets, so no dedicated insulating sheets for the heat sinks are needed after the device is completed.

Abstract: A heat sink mounting assembly includes a retention module (80) accommodating a heat sink (50) therein, and two retaining units (10) cooperating with the retention module to secure the heat sink therein. Each retaining unit includes a retaining clip (20) engaging with the retention module, and a pressing body (40) attached to the retaining clip. The pressing body includes a pressing portion (42) urging against the heat sink, and two releasing arms (46) each having a spring finger (48) snappingly engaging with the retaining clip when the pressing body is pressed toward the heat sink. When the releasing arms are squeezed, the spring fingers disengage from the retaining clip, and the pressing portion is released from the heat sink.

Abstract: The invention provides a heat sink assembly having a positionable heat sink permitting the heat sink to be mounted to a substrate in more than one configuration. Various features are described for permitting multiple degrees of freedom in the arrangement of the heat sink assembly. Such features permit the heat sink assembly to be adapted to different environments. The heat sink assembly also has features such as a vane for directing air flow relative to the heat sink. Features for varying and maintaining pressure between the heat sink and a component to be cooled are also included.

Abstract: A multi-layer thermal interface structure for placement between a microelectronic component package and a heat sink so that the structure has a total thermal resistance of no greater than about 0.03° C.-in2/W. The structure comprises a plurality of superimposed metallic layers including a core layer of a solid metal or metal alloy of high thermal conductivity preferably composed of aluminum or copper, a second layer having phase change properties and a third layer of nickel separating the solid metal layer from the layer having phase change properties.

Abstract: A heat sink retention frame includes a plurality of base members mounted on a board member. A plurality of retention members are provided, with each retention member having a first end moveably connected to a first connector portion of one of the base members, and having a second end extended into connection with a second connector portion of another of the base members.

Abstract: The back surface of a semiconductor chip (16) is exposed from the back surface of an insulating resin (13), and a metal plate (23) is affixed to this semiconductor chip (16). The back surface of this metal plate (23) and the back surface of a first supporting member (11) are substantially within a same plane, so that it is readily affixed to a second supporting member (24). Accordingly, the heat generated by the semiconductor chip can be efficiently dissipated via the metal plate (23) and the second supporting member (24).

Abstract: A fastener assembly including a base consisting of a pair of motherboard snaps on a first end and a hollow shaft on a second end, the motherboard snaps to be inserted through an aperture of a motherboard. The hollow shaft is inserted through an aperture of a heat sink clip. The base further includes a pair of grooves on an exterior of the shaft. The assembly further including a cap consisting of a hollow interior, an integrated post attached to a base of the interior, and a pair of cantilever snaps. The cap is fitted over the exterior surface of the hollow shaft of the base to secure the clip between the base and the cap. The integrated post of the cap to be inserted into the hollow shaft of the base to deflect the motherboard snaps outward on an opposite side of the motherboard aperture to secure the assembly with the motherboard. The cantilever snaps to be positioned in the grooves of the shaft of the base to secure the cap with the base.

Abstract: Disclosed is land grid array (LGA) assembly using a compressive load. An LGA assembly includes a first component located on the top of the LGA assembly; a center load screw coupled to the first component; and a second component, wherein the center load screw is received on the second component upon turning the center load screw in a first direction. Further turning of the center load screw in the first direction after the center load screw is received on the second component, operates the first component to apply a compressive load within the LGA assembly.

Abstract: A semiconductor mounting arrangement inclusive of a heat sink member enabling desirable resistance to physical impact damage to the semiconductor device, the heat sink and the printed circuit board supporting the semiconductor device and the heat sink. The heat sink is fabricated of thermally and electrically conductive metal such as copper and captured by metallic interconnection such as soldering to conductors of the printed circuit board. Efficient thermal and electrical conductivity between semiconductor device and heat sink are achieved also by metallic interconnection such as soldering intermediate the semiconductor device and the heat sink. Desirable semiconductor device performance under extreme electrical and physical force transient loading conditions are disclosed.

Abstract: A device for use in cooling a microelectronic component in a data processing system with a heat sink and a fan. The device includes means for maintaining the fan in close proximity to the heat sink and in a position relative to the fan for moving air over cooling surfaces of the heat sink and component to vibrationally isolate the fan from the heat sink and reduce the transmission of fan vibration to the heat sink. In one embodiment, the vibration isolation component is also configured to receive the fan and secure the fan in position relative to the heat sink to locate the fan in a predetermined position relative to the heat sink. In another embodiment, the vibration isolation component comprises a compliant gasket defining an opening adapted to receive an active area of the fan to allow air flow generated by the fan to reach the heat sink.

Abstract: A heat dissipation assembly (100) includes a retention frame (90), a heat sink (80), a fan holder (10), a pair of clips (60) and a fan (20). The heat sink is mounted on the retention frame and forms a pair of shoulders (822) at opposite sides thereof. The fan holder includes a fan duct (40) surrounding a top portion of the heat sink and including a pair of supports mounted on the shoulders, and a holding frame (30) detachably mounted on the fan duct. The clips are mounted on the supports and engaged with the retention frame. One side of the holding frame is pivotally engaged with the fan duct, an opposite side of the holding frame forms a latching leg (33) that is engaged with an ear (412) formed at the fan duct. Three catching arms extend from the holding frame and retain the fan in the holding frame.

Abstract: A method of making an integrated circuit device using an encapsulated semiconductor die, having leads extending therefrom and attaching a heat spreader to each of the major outer encapsulant surfaces thereof, is disclosed. One or both of the heat spreaders has a pair of end posts configured for allowing further encapsulation of portions thereof and insertion into through-holes in a substrate to position and support the device during and following the outer lead solder reflow step at board assembly. The heat spreaders provide high heat dissipation and EMR shielding, and may be connected to the substrate ground to become ground planes.

Abstract: The present invention relates to enhanced protection of the active surface and the bond wires or ball array of a microelectronic device, and to thermal management of the microelectronic device as it is packaged with a printed circuit board (PCB) or other substrate. The enhanced protection and thermal management are accomplished with a high-temperature thermal grease that is glob topped or encapsulated over the bond wires or ball array, and the active surface of the microelectronic device. The high-temperature thermal grease exchanges heat, particularly by conduction, away from the active surface of the microelectronic device as well as away from the bond wires.

Abstract: The present invention is related to an extendible and flexible heat-dissipation air conduit base as computer heat dissipation device. The invention mainly comprises an air conduit and fixtures. The air conduit is hollow and flexible with fixtures at both ends. Each fixture is in rectangle shape and connects with the air conduit through a circular hole. The fixture also has several positioning holes and through holes for metal wire to pass through and secure the air conduit with the fixture. By this design, the fixture at one end of the air conduit connects to a heat dissipation fan for CPU. Thus, it provides an excellent heat dissipation channel for computer CPU and helps to achieve the desirable heat dissipation effect.

Abstract: A die carrier has a body with a primary surface adapted for attachment to a substrate die. The body at least partially defines a fluid chamber. A fill port and an evacuate port are each fluidically connected to the fluid chamber.

Abstract: The invention relates to modular heat-dissipating housing covers for opto-electronic modules, e.g. transceivers. The housing covers according to the present invention are constructed out of various different parts, which provide different levels of heat dissipation depending on the desired implementation, while maintaining a seal against EMI leakage. Extra heat sinking portions are provided to dissipate heat generated from specific heat generating sources. The extra heat sinking portions are configured into a shape and/or out of a material that provides more thermal dissipation than the standard cover provided. Independent control over the different heat sinking portions enables a better fit and appropriate dissipation.

Abstract: It is an object to provide a semiconductor device having an improved heat dissipation characteristic. A power element is mounted on and jointed and to a metal block through a jointing material. An insulating substrate includes a ceramic substrate and metal layers formed on both surfaces of the ceramic substrate and having thicknesses equal to each other. The metal block and the insulating substrate are provided per insulation unit of the power element. The metal layer of the insulating substrate is joined to a surface of the metal block through a jointing material opposite to a surface thereof for forming the power element. An electrode terminal is attached to a surface of the metal block having a power element joined thereto through ultrasonic junction and the like. Electrode terminals are connected to electrodes of the power element through aluminum wires.

Abstract: A thermal interface pad is constructed from a plurality of thermal interface plate assemblies. Alternate thermal interface plate assemblies are rotated about 180 degrees from each other within the pad. Each plate assembly includes one or more spring members configured such that the completed thermal interface pad includes a plurality of spring members on at least two sides of the pad. The thermal interface plate assemblies are configured to allow the thermal interface pad to vary greatly in thickness. The pad is sufficiently adjustable in thickness to accommodate gross tolerance differences between multiple heat generating and sinking devices. Rods inserted in openings in the plates may be used to align the plate assemblies and to apply compressive force to the plates, improving the thermal conductivity between adjacent plates and greatly decreasing the overall thermal resistance of the thermal interface pad.

Abstract: A small-sized, light-weight, low-cost power semiconductor device with excellent productivity and vibration resistance is obtained. A mold resin casing (1) is made of a thermosetting resin, such as epoxy resin, and has a top surface (1T) and a bottom surface (1B). A through hole (2) is formed in a non-peripheral portion (in this example, approximately in the center) of the mold resin casing (1) to pass through between the top surface (1T) and the bottom surface (1B). Electrodes (3N, 3P, 4a, 4b) have their first ends projected from sides of the mold resin casing (1). The bottom surface (5B) of a heat spreader (5) is exposed in the bottom surface (1B) of the mold resin casing (1). The heat spreader (5) has an opening (6) formed around the through hole (2).

Abstract: A heat sink assembly for a circuit board component is provided. that includes a heat sink base, a frame coupled to the base, and a cam positionable relative to the base to lock the heat base to the circuit board component. The frame includes an actuator that has a first post and a second post. Each post has an upper end, a lower end, and a shaft portion therebetween. The lower end includes a retention lug. A cross beam interconnects the shaft portions of the posts. The frame further includes a board lock and the cam includes a lever coupled to the cam. The cam engages the actuator to move the actuator relative to the frame from a first position to a second position to lock the heat sink base to the circuit board component. The heat sink remains in the locked position when the lever is rotated from the second position to the first position.

Abstract: A semiconductor device includes two semiconductor chips that are interposed between a pair of radiation members, and thermally and electrically connected to the radiation members. One of the radiation members has two protruding portions and front ends of the protruding portions are connected to principal electrodes of the semiconductor chips. The radiation members are made of a metallic material containing Cu or Al as a main component. The semiconductor chips and the radiation members are sealed with resin with externally exposed radiation surfaces.

Abstract: An apparatus and method are provided for retaining thermal transfer pins in a spreader plate adapted to transfer thermal energy from an electronic component. The spreader plate includes pin holes that slidably receive the thermal transfer pins. The apparatus includes a retention member located proximate each pin hole. The retention member interferes with a range of motion of an associated pin in order to retain the associated pin within the pin hole.