SEMICONDUCTOR DEVICE
First Claim
Patent Images
1. A semiconductor device comprising:
- a semiconductor substrate with a MOSFET, the semiconductor substrate having a first major surface and a second major surface opposite to and above the first major surface;
an electrode for main current of the MOSFET disposed on the first major surface;
an electrode for control of the MOSFET disposed on the first major surface;
a rear plane electrode of the MOSFET disposed on the second major surface;
an external connection terminal electrically connected to the rear plane electrode; and
wherein the external connection terminal contains a first part, a second part and a third part, the first part is positioned over the rear plane electrode, the third part is positioned below the second major surface and the third part is connected via the second part to the first part.
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Abstract
A semiconductor device, wherein a first metallic member is bonded to a first electrode of a semiconductor element via a first metallic body containing a first precious metal, and a second metallic member is bonded to a second electrode via a second metallic body containing a second precious metal.
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Citations
30 Claims
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1. A semiconductor device comprising:
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a semiconductor substrate with a MOSFET, the semiconductor substrate having a first major surface and a second major surface opposite to and above the first major surface; an electrode for main current of the MOSFET disposed on the first major surface; an electrode for control of the MOSFET disposed on the first major surface; a rear plane electrode of the MOSFET disposed on the second major surface; an external connection terminal electrically connected to the rear plane electrode; and wherein the external connection terminal contains a first part, a second part and a third part, the first part is positioned over the rear plane electrode, the third part is positioned below the second major surface and the third part is connected via the second part to the first part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A semiconductor device comprising:
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a semiconductor substrate with a MOSFET, the semiconductor substrate having a first major surface and a second major surface opposite to and above the first major surface; an electrode for main current of the MOSFET disposed on the first major surface; an electrode for control of the MOSFET disposed on the first major surface; a rear plane electrode of the MOSFET disposed on the second major surface; an external connection terminal electrically connected to the rear plane electrode; wherein the external connection terminal contains a first part, a second part and a third part, the first part is positioned over the rear plane electrode, the third part is positioned below the second major surface and the third part is connected via the second part to the first part; wherein the electrode for main current and the electrode for control are located within a plan view area of the first major surface of the semiconductor substrate; and wherein the third part of the external connection terminal is located outside the plan view area of the first major surface. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A semiconductor device for mounting on a wiring substrate having connection terminals thereon, the semiconductor device comprising:
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a semiconductor substrate with a MOSFET, the semiconductor substrate having a first major surface and a second major surface opposite to the first major surface, the first major surface being faced toward the wiring substrate; an electrode for main current of the MOSFET disposed on the first major surface; an electrode for control of the MOSFET disposed on the first major surface; a rear plane electrode of the MOSFET disposed on the second major surface; and an external connection terminal electrically connected to the rear plane electrode; wherein the connection terminals on the wiring substrate include a connection terminal for main current, a connection terminal for control and a connection terminal for rear plane electrode; wherein the external connection terminal contains a first part, a second part and a third part, the first part is positioned over the rear plane electrode, the third part is adapted for solder connection to the connection terminal for rear plane electrode on the wiring substrate and the third part is connected via the second part to the first part; and wherein the electrode for main current and the electrode for control of the MOSFET are faced toward the connection terminal for main current and the connection terminal for control, respectively, and adapted for electrical connection to the connection terminal for main current and the connection terminal for control, respectively. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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28. A surface mounting type semiconductor device for mounting on a wiring substrate having connection terminals thereon, the semiconductor device comprising:
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a semiconductor substrate with a power MOSFET, the semiconductor substrate having a first major surface and a second major surface opposite to the first major surface, the first major surface being faced toward the wiring substrate; a source electrode of the power MOSFET disposed on the first major surface; a gate electrode of the power MOSFET disposed on the first major surface; a drain electrode of the power MOSFET disposed on the second major surface; a conductive member electrically connected to the drain electrode; wherein the connection terminals on the wiring substrate include a source connection terminal, a gate connection terminal and a drain connection terminal; wherein the conductive member contains a first part, a second part and a third part, the first part is positioned over the drain electrodes, the third part is adapted for connection to the drain connection terminal on the wiring substrate and the third part is connected via the second part to the first part; wherein the source electrode and the gate electrode of the power MOSFET are faced toward the source connection terminal and the drain connection terminal, respectively, and adapted for electrical connection to the source connection terminal and the drain connection terminal, respectively; wherein the source electrode and the gate electrode are located within a plan view area of the first major surface of the semiconductor substrate; and wherein the third part of the conductive member is located outside the plan view area of the first major surface. - View Dependent Claims (29, 30)
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Specification