IP Library Granted Patent US 11,348,896
Granted Patent B2
US 11,348,896 · App. 16/844,341 · Granted May 31, 2022

Method for producing a semiconductor module by using adhesive attachment prior to sintering

Inventors: Chunlei Liu (Oberrohrdorf, CH); Fabian Mohn (Ennetbaden, CH); Jürgen Schuderer (Zürich, CH)
Assignees: AUDI AG; Hitachi Energy Switzerland AG
H01L24/83B60R16/033H01L24/30H02M7/003H01L2224/8384
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Quick Facts
Patent No.
US 11,348,896
App. No.
16/844,341
Granted
May 31, 2022
Kind
B2
Abstract

A method for producing a semiconductor module, involving the steps: providing a carrier plate and a substrate having a bonding layer arranged on a surface of the carrier plate or the substrate, applying adhesive in multiple adhesive areas of the carrier plate or the substrate which are free from the bonding layer, positioning the substrate on the carrier plate such that the substrate and the carrier plate are in contact with the bonding layer and the adhesive, and joining the substrate and the carrier plate across the bonding layer by melting or sintering of the bonding layer.

Claims (15)

1. A method for producing a semiconductor module, comprising the steps:

providing a carrier plate and a substrate having a bonding layer arranged on a surface of the carrier plate or the substrate,

applying adhesive in multiple adhesive areas of the carrier plate or the substrate which are free from the bonding layer, wherein a temperature of the adhesive is kept above a melting temperature between 60° C. and 140° C.,

positioning the substrate on the carrier plate such that the substrate and the carrier plate are in contact with the bonding layer and the adhesive, wherein positioning of the substrate on the carrier plate is done while the adhesive is at the temperature above the melting temperature, and

joining the substrate and the carrier plate across the bonding layer by melting or sintering of the bonding layer.

2. The method according to claim 1 , wherein temperatures are used for the melting or sintering of the bonding layer that are above the boiling temperature of the adhesive.

3. The method according to claim 1 , wherein a pick and place machine is used for positioning the substrate on the carrier plate.

4. The method according to claim 1 , wherein the adhesive is situated in marginal recesses of the bonding layer.

5. The method according to claim 1 , wherein the adhesive used is a plastic with a melting temperature between 60° C. and 140° C. and an evaporation temperature between 160° C. and 300° C.

6. The method according to claim 1 , wherein a half-bridge is produced as the semiconductor module or multiple semiconductor modules are produced, each of them being half-bridges and being used as a component of a semiconductor device, being a rectifier or an inverter.

7. The method according to claim 2 , wherein a pick and place machine is used for positioning the substrate on the carrier plate.

8. The method according to claim 2 , wherein the adhesive is situated in marginal recesses of the bonding layer.

9. The method according to claim 3 , wherein the adhesive is situated in marginal recesses of the bonding layer.

10. The method according to claim 2 , wherein the adhesive used is a plastic with a melting temperature between 60° C. and 140° C. and an evaporation temperature between 160° C. and 300° C.

11. The method according to claim 3 , wherein the adhesive used is a plastic with a melting temperature between 60° C. and 140° C. and an evaporation temperature between 160° C. and 300° C.

Assignments (4)
CHANGE OF NAME Recorded Jun 24, 2024
From: HITACHI ENERGY SWITZERLAND AG
To: HITACHI ENERGY LTD
Reel/Frame 067815/0091 →
CHANGE OF NAME Recorded Mar 15, 2022
From: ABB POWER GRIDS SWITZERLAND AG
To: HITACHI ENERGY SWITZERLAND AG
Reel/Frame 059268/0085 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 14, 2022
From: ABB SCHWEIZ AG
To: ABB POWER GRIDS SWITZERLAND AG
Reel/Frame 059252/0887 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 18, 2020
From: LIU, CHUNLEI; MOHN, FABIAN; SCHUDERER, JÜRGEN
To: AUDI AG; ABB SCHWEIZ AG
Reel/Frame 053818/0321 →
Priority Claims (1)
DE 10 2019 206 260.1 · May 2, 2019 · national
Continuity (1)
Related Publication 20200350276A1 · Nov 5, 2020