摘要:
A power semiconductor module includes: a first metal substrate on which a power semiconductor device is mounted; a second metal substrate on which a power semiconductor device is not mounted; and an electrically insulating resin package which seals the first metal substrate and the second metal substrate. The back surface of the first metal substrate on the side opposite to the mounting surface of the power semiconductor device is made to expose outside the resin package to form a heat dissipation surface.
摘要:
According to an exemplary implementation, a power quad flat no-lead (PQFN) package includes a multi-phase power inverter, a control circuit, and a driver circuit. The driver circuit is configured to drive the multi-phase power inverter responsive to a control signal from the control circuit. The multi-phase power inverter, the control circuit, and the driver circuit are each situated on a PQFN leadframe of the PQFN package. The control circuit and the driver circuit can be in a common integrated circuit (IC). Furthermore, the control circuit can be configured to reconstruct at least two phase currents of the multi-phase power inverter from a combined phase current.
摘要:
According to an exemplary implementation, a power quad flat no-lead (PQFN) package includes a U-phase output node situated on a first leadframe island of a leadframe, a V-phase output node situated on a second leadframe island of said leadframe, and a W-phase output node situated on a W-phase die pad of said leadframe. The first leadframe island can be on a first leadframe strip of the leadframe, where the first leadframe strip is connected to a U-phase die pad of the leadframe. The second leadframe island can be on a second leadframe strip of the leadframe, where the second leadframe strip is connected to a V-phase die pad of the leadframe. A first W-phase power switch is situated on the W-phase die pad. Furthermore, at least one wirebond is connected to the W-phase die pad and to a source of a second W-phase power switch. The W-phase die pad can be a W-phase output terminal of the PQFN package.
摘要:
A semiconductor module (41) forming a semiconductor device includes lead frames (31) in which switching elements (11, 17) are mounted on the side of upper surfaces and heat radiation surfaces (38) are formed on the side of lower surfaces, and bus bars (32) disposed on the lead frames (31) and connecting between plural switching elements (11, 17). The heat radiation surfaces (38) of the lead frames (31) are arranged on one plane and upper surfaces of flat surface portions (320) of the bus bars (32) are arranged on one plane, therefore, a layout property on the heat radiation surfaces (38) or the upper surfaces the flat surface portions (320) is good, which facilitates creation of a heat radiation structure and so on.
摘要:
According to one disclosed embodiment, a power semiconductor package includes an insulated-gate bipolar transistor (IGBT) residing on a package substrate (470, 570), where the IGBT (420,520) includes a plurality of solderable front metal (SFM) coated emitter segments (492,592) situated atop the IGBT (420,520) and connected to an emitter of the IGBT. The power semiconductor package also includes a conductive clip (480,580) coupling the plurality of SFM coated emitter segments (492, 592) to an emitter pad on the package substrate (470, 570). Additionally, the power semiconductor package includes a gate pad on the package substrate coupled to a gate of the IGBT, a collector pad on the package substrate situated under the IGBT and coupled to a collector of the IGBT, and an emitter terminal, a collector terminal and a gate terminal of the package substrate that are routed to the emitter pad, collector pad, and gate pad, respectively. The conductive clip (480, 580) further has through holes (484) in the conductive clip body (490) that are configured to allow reflow degassing to escape from the surface area of the coupling between emitter segements (492) and the conductiv clip body (490) thereby siginificantly reducing the risk of physical irregularities during the reflow process.
摘要:
A semiconductor module (10), comprises a substrate plate (14); a semiconductor switch chip (22a) and a diode chip (24a) attached to a collector conductor (16) on the substrate plate (14), wherein the diode chip (24a) is electrically connected antiparallel to the semiconductor switch chip (22a); wherein the semiconductor switch chip (22a) is electrically connected via bond wires (28) to an emitter conductor (18) on the substrate plate (14) providing a first emitter current path (50a), which emitter conductor (18) is arranged oppositely to the semiconductor switch chip (22a) with respect to the diode chip (24a); wherein a gate electrode (40a) of the semiconductor switch chip (22a) is electrically connected via a bond wire (28) to a gate conductor (20) on the substrate plate (14) providing a gate current path (54a), which gate conductor (18) is arranged oppositely to the semiconductor switch chip (22a) with respect to the diode chip (24a); and wherein a protruding area (44) of the emitter conductor (18) runs besides the diode chip (24a) towards the first semiconductor switch chip (22a) and the first semiconductor switch chip (22a) is directly connected via a bond wire (28) with the protruding area (44) providing an additional emitter current path (52) running at least partially along the gate current path (54a). The semiconductor switch chip (22a) is a first semiconductor switch chip and the diode chip (24a) is a first diode chip, which are arranged in a first row (42a). The semiconductor module (10) comprises further a second row (42b) of a second semiconductor switch chip (22b) and a second diode chip (24a, 24b) attached to the collector conductor (16), wherein the diode chip (24a, 24b) of each row is electrically connected antiparallel to the semiconductor switch chip (22a, 22b) of the same row and the first and second rows (42a, 42b) are electrically connected in parallel. The first semiconductor switch chip (22a) is arranged besides the second diode chip (24b) and the second semiconductor chip (22b) is arranged besides the first diode chip (24a).
摘要:
A semiconductor device includes a normally-on junction FET having a gate electrode, a source electrode and a drain electrode and a normally-off MOSFET having a gate electrode, a source electrode and a drain electrode. The source electrode of the junction FET is electrically connected to the drain electrode of the MOSFET, and the junction FET is thus connected to the MOSFET in series. The gate electrode of the junction FET is electrically connected to the gate electrode of the MOSFET.
摘要:
The ringing of a switching waveform of a semiconductor device is restrained. For example, an interconnect (L5) is laid which functions as a source of a power transistor (Q3) and a cathode of a diode (D4), and further functioning as a drain of a power transistor (Q4) and an anode of a diode (D3). In other words, a power transistor and a diode coupled to this power transistor in series are formed in the same semiconductor chip; and further an interconnect functioning as a drain of the power transistor and an interconnect functioning as an anode of the diode are made common to each other. This structure makes it possible to decrease a parasite inductance between the power transistor and the diode coupled to each other in series.