# US 10,770,367 B2 · Semiconductor apparatus, method for manufacturing the same and electric power conversion device

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- Number: US 10,770,367 B2
- Document ID: US10770367B2
- Status: Granted
- Kind: B2
- Application number: 16/159,745
- Filed: 2018-10-15
- Published: 2019-10-03
- Granted: 2020-09-08
- Earliest claimed: 2018-03-30
- Assignees: Mitsubishi Electric Corporation
- Applicants: Mitsubishi Electric Corporation
- Inventors: Takuya Kitabayashi; Hiroshi Yoshida; Hidetoshi Ishibashi; Daisuke Murata
- Web page: https://patentgrep.com/patent/US10770367B2

## CPC

- H10W 40/255: {having a laminate or multilayered structure, e.g. direct bond copper [DBC] ceramic substrates}
- H10W 74/127: {characterised by arrangements for sealing or adhesion}
- H10W 42/00: Arrangements for protection of devices (arrangements for thermal protection H10W40/00)
- H10W 70/20: Conductive package substrates serving as an interconnection, e.g. metal plates (leadframes H10W70/40)
- H10W 70/60: Insulating or insulated package substrates; Interposers; Redistribution layers (leadframes H10W70/40)
- H10W 76/10: Containers or parts thereof
- H10W 76/157: having interconnections parallel to the insulating or insulated base
- H10W 76/60: Seals
- H10W 90/701: {characterised by the relative positions of pads or connectors relative to package parts}
- H10W 72/073: {of die-attach connectors}
- H10W 72/07331: {Connecting techniques}
- H10W 72/07336: {Soldering or alloying}
- H10W 72/075: {of bond wires}
- H10W 72/07532: {Compression bonding, e.g. thermocompression bonding}
- H10W 72/07533: {Ultrasonic bonding, e.g. thermosonic bonding}
- H10W 72/325: {Die-attach connectors having a filler embedded in a matrix}
- H10W 72/352: {comprising metals or metalloids, e.g. solders}
- H10W 72/353: {not comprising solid metals or solid metalloids, e.g. ceramics}
- H10W 72/884: {Die-attach connectors and bond wires}
- H10W 76/47: Solid or gel fillings
- H10W 90/734: {between a chip and a stacked insulating package substrate, interposer or RDL}
- H10W 90/754: {between a chip and a stacked insulating package substrate, interposer or RDL}
- H10W 90/755: {between a chip and a laterally-adjacent insulating package substrate, interpose or RDL}
- H10W 90/756: {between a chip and a stacked lead frame, conducting package substrate or heat sink}
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10

## Abstract

A semiconductor apparatus includes: a substrate including a circuit pattern on an upper surface side and a metal plate on a lower surface side; a semiconductor device joined to the circuit pattern via a conductive component; a case located to surround the substrate; a sealing material sealing the semiconductor device and the substrate in a section surrounded by the case; and a bonding agent bonding the case and the metal plate on a side face of the substrate.

## Claims

### Claim 1

A semiconductor apparatus comprising:
a substrate including an insulator disposed between a circuit pattern on an upper surface side and a metal plate on a lower surface side;
a semiconductor device joined to the circuit pattern via a conductive component;
a case located to surround the substrate, a gap being between the case and a lateral side face of the substrate;
a sealing material sealing the semiconductor device and the substrate in a section surrounded by the case; and
a bonding agent bonding the case and the metal plate on the lateral side face of the substrate, the bonding agent extending along a bottom surface of the case and filling the gap between the case and the lateral side face of the substrate.

### Claim 2 (depends on 1)

The semiconductor apparatus according to claim 1, wherein a lower part of the case includes a protrusion that makes contact with an upper surface of the metal plate.

### Claim 3 (depends on 1)

The semiconductor apparatus according to claim 1, wherein a lower part of the case includes a step.

### Claim 4 (depends on 2)

The semiconductor apparatus according to claim 2, wherein a lower part of the case includes a step.

### Claim 5 (depends on 1)

The semiconductor apparatus according to claim 1, wherein the bonding agent covers a lower part of the case that is higher than the bottom surface of the case.

### Claim 6 (depends on 2)

The semiconductor apparatus according to claim 2, wherein the bonding agent covers the protrusion.

### Claim 7 (depends on 3)

The semiconductor apparatus according to claim 3, wherein the bonding agent covers the step.

### Claim 8 (depends on 4)

The semiconductor apparatus according to claim 4, wherein the bonding agent covers one or both of the protrusion and the step.

### Claim 9 (depends on 1)

An electric power conversion device comprising:
a main conversion circuit including the semiconductor apparatus according to claim 1, converting input power and outputting converted power; and
a control circuit outputting a control signal for controlling the main conversion circuit to the main conversion circuit.

### Claim 10 (depends on 1)

The semiconductor apparatus of claim 1, wherein the bonding agent includes a thermoplastic resin.

### Claim 11

A semiconductor apparatus comprising:
a substrate including an insulator disposed between a circuit pattern on an upper surface side and a metal plate on a lower surface side;
a semiconductor device joined to the circuit pattern via a conductive component;
a case located to surround the substrate;
a sealing material sealing the semiconductor device and the substrate in a section surrounded by the case; and
a bonding agent bonding the case and the metal plate on a lateral side face of the substrate, the bonding agent covering a bottom surface of the case.

### Claim 12 (depends on 11)

The semiconductor apparatus according to claim 11, wherein a bottom surface of the bonding agent is coplanar with a bottom surface of the metal plate.

### Claim 13

A semiconductor apparatus comprising:
a substrate including an insulator disposed between a circuit pattern on an upper surface side and a metal plate on a lower surface side;
a semiconductor device joined to the circuit pattern via a conductive component;
a case located to surround the substrate;
a sealing material sealing the semiconductor device and the substrate in a section surrounded by the case; and
a bonding agent covering a lower inner part, a lower outer part, and a lower surface of the case, bonding the lower inner part of the case and a lateral side face of the metal plate on a lateral side face of the substrate.
