Patent classifications
H01L2924/1033
Manufacturing method for semiconductor device
A manufacturing method includes the step of forming a diced semiconductor wafer (10) including semiconductor chips (11) from a semiconductor wafer (W) typically on a dicing tape (T1). The diced semiconductor wafer (10) on the dicing tape (T1) is laminated with a sinter-bonding sheet (20). The semiconductor chips (11) each with a sinter-bonding material layer (21) derived from the sinter-bonding sheet (20) are picked up typically from the dicing tape (T1). The semiconductor chips (11) each with the sinter-bonding material layer are temporarily secured through the sinter-bonding material layer (21) to a substrate. Through a heating process, sintered layers are formed from the sinter-bonding material layers (21) lying between the temporarily secured semiconductor chips (11) and the substrate, to bond the semiconductor chips (11) to the substrate. The semiconductor device manufacturing method is suitable for efficiently supplying a sinter-bonding material to individual semiconductor chips while reducing loss of the sinter-bonding material.
Semiconductor device and manufacturing method for semiconductor device
A semiconductor device includes a case enclosing a region where a semiconductor element as a component of an electric circuit exists. A resin part is fixed to an inside of the case in contact with the region. The resin part is provided with a conductive film, which is a part of the electric circuit. The conductive film is provided in the resin part so that the conductive film comes into contact with the region.
Semiconductor package
A semiconductor package according to an embodiment of the present invention Includes: a lead frame comprising a pad and a lead spaced apart from the pad by a regular interval; a semiconductor chip adhered on the pad; and a clip structure electrically connecting the semiconductor chip and the lead, wherein an one end of the clip structure connected to the semiconductor chip inclines with respect to upper surfaces of chip pads of the semiconductor chip and is adhered to the upper surfaces of the chip pads of the semiconductor chip. A semiconductor package according to another embodiment of the present invention includes: a semiconductor chip comprising one or more chip pads; one or more leads electrically connected to the chip pads; and a sealing member covering the semiconductor chip, wherein an one end of the lead inclines with respect to one surface of the chip pad and is adhered to the chip pad and an other end of the lead is exposed to the outside of the sealing member.
High density power module
Methods and systems are provided for a power module. In one example, the power module may have a half-bridge configuration with electrical terminals arranged at opposite side of the power module, semiconductor chips arranged in a printed circuit board (PCB), a capacitor electrically coupled to the electrical terminals and arranged above and in contact with a top plate of the power module, and one or more connectors coupled to the PCB to couple the power module to external circuits. The power module may be directly cooled by flowing a coolant over the semiconductor chips.
Semiconductor package having a chip carrier and a metal plate sized independently of the chip carrier
A semiconductor package includes: a carrier having a first side and a second side opposite the first side, the first side having a plurality of contact structures; a semiconductor die having a first side and a second side opposite the first side, the first side of the semiconductor die having a plurality of pads attached to the plurality of contact structures at the first side of the carrier; a metal plate attached to the second side of the semiconductor die, the metal plate having a size that is independent of the size of the carrier and based on an expected thermal load to be presented by the semiconductor die; and an encapsulant confined by the carrier and the metal plate and laterally surrounding an edge of the semiconductor die. Corresponding methods of production are also provided.
Package for power semiconductor devices
In a described example, an apparatus includes: a first mold compound partially covering a thermal pad that extends through a pre-molded package substrate formed of a first mold compound, a portion of the thermal pad exposed on a die side surface of the pre-molded package substrate, the pre-molded package substrate having a recess on the die side surface, with an exposed portion of the thermal pad and a portion of the first mold compound in a die mounting area in the recess; a semiconductor die mounted to the thermal pad and another semiconductor die mounted to the mold compound in the die mounting area; wire bonds coupling bond pads on the semiconductor dies to traces on the pre-molded package substrate; and a second mold compound over the die side surface of the pre-molded package substrate and covering the wire bonds, the semiconductor dies, the recess, and a portion of the traces.
Half bridge driver circuits
A half bridge GaN circuit is disclosed. The circuit includes a low side circuit, which has a low side switch, a low side switch driver configured to drive the low side switch, a first level shift circuit configured to receive a first level shift signal, and a second level shift circuit configured to generate a second level shift signal. The half bridge GaN circuit also includes a high side circuit, which has a high side switch configured to be selectively conductive according to a voltage level of a received high side switch signal, and a high side switch driver configured to generate the high side switch signal in response to the level shift signals. A transition in the voltage of the high side switch signal causes the high side switch driver to prevent additional transitions of the voltage level of the high side switch signal for a period of time.
Half bridge driver circuits
A half bridge GaN circuit is disclosed. The circuit includes a low side circuit, which has a low side switch, a low side switch driver configured to drive the low side switch, a first level shift circuit configured to receive a first level shift signal, and a second level shift circuit configured to generate a second level shift signal. The half bridge GaN circuit also includes a high side circuit, which has a high side switch configured to be selectively conductive according to a voltage level of a received high side switch signal, and a high side switch driver configured to generate the high side switch signal in response to the level shift signals. A transition in the voltage of the high side switch signal causes the high side switch driver to prevent additional transitions of the voltage level of the high side switch signal for a period of time.
ADHESIVE TRANSFER FILM AND METHOD FOR MANUFACTURING POWER MODULE SUBSTRATE BY USING SAME
The present disclosure relates to an adhesive transfer film for bonding a semiconductor chip and a spacer to a substrate and a method for manufacturing a power module substrate by using same, the adhesive transfer film being obtained by manufacturing an Ag sintering paste in the form of a film. The present disclosure can reduce the process time by minimizing a sintering process, and can reduce equipment investment cost.
INSULATED CIRCUIT BOARD, POWER MODULE AND POWER UNIT
An insulated circuit board includes an insulated substrate, a first electrode, and a second electrode. A thin portion is formed in a corner portion, the corner portion being a region occupying, with regard to directions along outer edges from a vertex of at least one of the first and second electrodes in plan view, a portion of a length of the outer edges, and the thin portion has a thickness smaller than that of a region other than the thin portion. The thin portion in at least one of the first and second electrodes has a planar shape surrounded by first and second sides orthogonal to each other as portions of the outer edges from the vertex, and a curved portion away from the vertex of the first and second sides.