Patent classifications
H01L21/4817
Power semiconductor module having a current sensor module fixed with potting material
Described is a power semiconductor module that includes: a frame made of an electrically insulative material; a first substrate seated in the frame; a plurality of power semiconductor dies attached to the first substrate; a plurality of signal pins attached to the first substrate and electrically connected to the power semiconductor dies; a busbar extending from the first substrate through a side face of the frame; a current sensor module seated in a receptacle of the frame in sensing proximity of the busbar, the current sensor module including a current sensor attached to a circuit board; and a potting material fixing the current sensor module to the frame such that no air gap is present between the current sensor and the busbar. The potting material contacts the frame and the current sensor. Methods of producing the power semiconductor module are also described.
POWER SEMICONDUCTOR MODULE, METHOD FOR ASSEMBLING A POWER SEMICONDUCTOR MODULE AND HOUSING FOR A POWER SEMICONDUCTOR MODULE
A power semiconductor module includes: a substrate with a metallization layer attached to a dielectric insulation layer and a semiconductor body mounted to the metallization layer; a housing at least partly enclosing the substrate and having sidewalls and a cover that at least partly covers an opening formed by the sidewalls and has a flexible portion; and a press-on pin having arranged on the substrate or semiconductor body. A first end of the press-on pin faces the substrate or semiconductor body and extends towards the cover such that a second end of the press-on pin contacts the flexible portion of the cover. The substrate in an area vertically below the press-on pin has a first spring constant k.sub.1 in a vertical direction that is perpendicular to a top surface of the substrate. The flexible portion of the cover has a second spring constant k.sub.2, where 0.5*k.sub.1≤k.sub.2≤5*k.sub.1.
POWER SEMICONDUCTOR MODULE ARRANGEMENT
A power semiconductor module arrangement includes: a housing; first and second electrical contacts within the housing; and a mounting arrangement including a frame or body and first and second terminal elements. The mounting arrangement is inserted in and coupled to the housing. First ends of the first and second terminal elements mechanically and electrically contact the first and second electrical contacts, respectively. A middle part of each terminal element extends through the frame or body. A second end of each terminal element extends outside the housing. The first terminal element is dielectrically insulated from the second terminal element by a portion of the frame or body. The first terminal element is injected into and inextricably coupled to the frame or body. The second terminal element is arranged within a hollow space inside the frame or body and is detachably coupled to the frame or body.
METHODS OF MANUFACTURING SEMICONDUCTOR PACKAGING DEVICE AND HEAT DISSIPATION STRUCTURE
A manufacturing method of a semiconductor packaging device is provided, and the manufacturing method includes steps as follows. A working chip is soldered on one surface of a wiring board so that an working circuit inbuilt inside a chip body of the working chip is electrically connected to the wiring board. A silicon thermal conductivity element is soldered on one surface of a heat-dissipating metal lid. The heat-dissipating metal lid is fixedly covered on the wiring board such that the silicon thermal conductivity element is sandwiched between the chip body and the heat-dissipating metal lid, and the silicon thermal conductivity element is electrically isolated from the working circuit of the chip body and the wiring board.
Integrated circuit with printed bond connections
A packaged integrated circuit is provided. The packaged integrated circuit includes a die, a package including a base, a lid, and a plurality of package leads, and die attach adhesive for securing the die to the package base. the die includes a plurality of die pads. The die is secured to the base with the die attach adhesive. After the die is secured to the base, at least one of the plurality of die pads is electrically connected to at least one of the plurality of package leads with a printed bond connection. After printing the bond connection, the lid is sealed to the base.
AIR CAVITY PACKAGE WITH IMPROVED CONNECTIONS BETWEEN COMPONENTS
An air cavity package with one or more dovetail recesses configured with a first recess and a coincident second recess. The first recess has a first depth and the second recess has a second depth. The first recess has a lower width and an upper width smaller than the first lower width creating a dovetail shape. Individual dovetail recesses are created by creating a first recess in the flange at a first width and depth. A second recess with a second width and second depth and coincident with the first recess is pressed into the flange. The second width is greater than the first width and the second depth is smaller than the first depth. Pressing the second recess causes the first width at an upper portion to decrease, causing the first recess to develop a dovetail shape.
PROCESS FOR PACKAGING CIRCUIT COMPONENT HAVING COPPER CIRCUITS WITH SOLID ELECTRICAL AND THERMAL CONDUCTIVITIES AND CIRCUIT COMPONENT THEREOF
A method for packaging a circuit component, comprising: forming a first protruding pad on a first copper substrate and a through-hole in the first protruding pad; forming a second protruding pad on a second copper substrate and placing a circuit dice of the circuit component on the second protruding pad having a conductive paste coated thereon wherein a first electrode of the dice facing the second protruding pad; stacking the first copper substrate onto the second copper substrate with the first protruding pad having a conductive paste coated thereon aligned and pressing onto the circuit dice placed on the second protruding pad wherein a second electrode of the dice facing the first protruding pad; inserting a copper rod tightly into the through-hole until contacting with a conductive paste coated on the second substrate; heat-treating the stacked structure for the circuit dice and the copper rod to form secured electrical connection with the first and second copper substrates respectively and further forming a hermetic seal in the space between the first and second copper substrates; and using the hermetic seal as a rigid processing structure, etching the exposed surface of the first and second copper substrates to remove the entire thickness of copper other than in the area of the first and second protruding pads and in the area other than where the copper rod connects to the second copper substrate, thereby forming the device terminals of the circuit component package.
SEMICONDUCTOR DEVICE
A semiconductor device includes: an insulating circuit substrate; a semiconductor element including a first main electrode bonded to a first conductor layer of the insulating circuit substrate via a first bonding material, a semiconductor substrate deposited on the first main electrode, and a second main electrode deposited on the semiconductor substrate; and a resistive element including a bottom surface electrode bonded to a second conductor layer of the insulating circuit substrate via a second bonding material, a resistive layer with one end electrically connected to the bottom surface electrode, and a top surface electrode electrically connected to another end of the resistive layer, wherein the first main electrode includes a first bonded layer bonded to the first bonding material, the bottom surface electrode includes a second bonded layer bonded to the second bonding material, and the first bonded layer and the second bonded layer have a common structure.
LASER MANUFACTURING OF SOLDER PREFORMS
Methods of making solder preforms are disclosed. A ribbon of raw material is received, and a first annular solder preform is formed by laser cutting the ribbon. The edges of the first annular solder preform can then be cleaned. The cutout section removed from the middle of the first annular solder preform can then be laser cut to form a second annular solder preform that is smaller than the first annular solder preform.
Electromagnetic wall in millimeter-wave cavity
An apparatus includes a package, a wall and a lid. The package may be configured to mount two chips configured to generate one or more signals in a millimeter-wave frequency range. The wall may be formed between the two chips. The wall generally has a plurality of conductive arches that attenuate an electromagnetic coupling between the two chips in the millimeter-wave frequency range. The lid may be configured to enclose the chips to form a cavity.