IP Library Granted Patent US 10,573,532
Granted Patent B2
US 10,573,532 · App. 16/020,178 · Granted Feb 25, 2020

Method for processing a workpiece using a multi-cycle thermal treatment process

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Quick Facts
Patent No.
US 10,573,532
App. No.
16/020,178
Granted
Feb 25, 2020
Kind
B2
Abstract

A method for processing a workpiece is provided. The method can include placing a workpiece on a susceptor disposed within a processing chamber. The method can include performing a multi-cycle thermal treatment process on the workpiece in the processing chamber. The multi-cycle thermal treatment process can include at least two thermal cycles. Each thermal cycle of the at least two thermal cycles can include performing a first treatment on the workpiece at a first temperature; heating a device side surface of the workpiece to a second temperature in less than one second; performing a second treatment on the workpiece at approximately the second temperature; and cooling the workpiece subsequent to performing the second treatment.

Claims (32)

1. A method for processing a workpiece, the method comprising:

placing a workpiece on a susceptor disposed within a processing chamber;

performing a multi-cycle thermal treatment process on the workpiece while the workpiece is disposed within the processing chamber, the multi-cycle thermal treatment process comprising at least two thermal cycles, each thermal cycle of the at least two thermal cycles comprising:

performing a first treatment on the workpiece at a first temperature, the first treatment comprising exposing the workpiece to one or more species generated in a remote plasma chamber;

heating, by one or more flash lamps, a device side surface of the workpiece to a second temperature;

performing a second treatment on the workpiece at approximately the second temperature, the second treatment comprising an anneal treatment; and

subsequent to performing the second treatment, providing a flow of fluid through an interior of the susceptor to cool the workpiece,

wherein heating by one or more flash lamps a device side surface of the workpiece has a duration of less than about one second.

2. The method of claim 1 , wherein a layer of material is removed from the workpiece during each thermal cycle of the at least two thermal cycles.

3. The method of claim 1 , wherein a layer of material is deposited onto the workpiece during each thermal cycle of the at least two thermal cycles.

4. The method of claim 1 , wherein the flow of fluid comprises Freon fluid.

5. The method of claim of claim 1 , wherein the flow of fluid comprises water.

6. The method of claim 1 , wherein the flow of fluid comprises ethylene glycol.

7. The method of claim 1 , wherein performing the first treatment comprises exposing the device side surface of the workpiece to one or more gases.

8. The method of claim 1 , wherein performing the second treatment comprises exposing the device side surface of the workpiece to one or more gases.

9. The method of claim 1 , wherein performing the second treatment comprises exposing the device side surface of the workpiece to one or more species generated in a remote plasma chamber.

10. The method of claim 9 , wherein performing the second treatment further comprises exposing the device side surface of the workpiece to one or more gases.

11. The method of claim 10 , wherein a grid is disposed between the remote plasma chamber and the processing chamber.

12. The method of claim 1 , wherein the second treatment comprises implementing a chemical reaction on the device side surface of the workpiece.

13. The method of claim 1 , further comprising removing the workpiece from the processing chamber subsequent to performing the multi-cycle thermal treatment process.

14. A method for processing a workpiece, the method comprising:

placing a workpiece on a susceptor disposed within a processing chamber;

performing a multi-cycle thermal treatment process on the workpiece while the workpiece is within the processing chamber, the multi-cycle thermal treatment process comprising:

performing a first treatment on the workpiece at a first temperature, the first treatment comprising exposing the workpiece to one or more species generated in a remote plasma chamber;

heating, by one or more flash lamps, a device side surface of the workpiece to a second temperature;

performing a second treatment on the workpiece at approximately the second temperature, the second treatment comprising an anneal treatment;

subsequent to performing the second treatment, providing a flow of fluid through an interior of the susceptor to cool the workpiece;

subsequent to providing the flow of fluid through the interior of the susceptor to cool the workpiece, performing a third treatment on the workpiece at approximately the first temperature;

subsequent to performing the third treatment, heating, by the one or more flash lamps, the device side surface of the workpiece to approximately the second temperature;

subsequent to performing the third treatment, performing a fourth treatment on the workpiece at approximately the second temperature; and

subsequent to performing the fourth treatment, providing the flow of fluid through the interior of the susceptor to cool the workpiece,

wherein the one or more flash lamps heat the device side surface of the workpiece to approximately the second temperature in less than about one second.

Assignments (6)
RELEASE OF SECURITY INTEREST Recorded Apr 15, 2021
From: EAST WEST BANK
To: MATTSON TECHNOLOGY, INC.
Reel/Frame 055950/0452 →
SECURITY INTEREST Recorded Oct 19, 2020
From: MATTSON TECHNOLOGY, INC.
To: EAST WEST BANK
Reel/Frame 054100/0167 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 30, 2019
From: MATTSON TECHNOLOGY, INC.
To: MATTSON TECHNOLOGY, INC.; BEIJING E-TOWN SEMICONDUCTOR TECHNOLOGY, CO., LTD
Reel/Frame 050582/0796 →
SECURITY INTEREST Recorded Sep 6, 2019
From: MATTSON TECHNOLOGY, INC.
To: EAST WEST BANK
Reel/Frame 050299/0372 →
SECURITY INTEREST Recorded Aug 27, 2018
From: MATTSON TECHNOLOGY, INC.
To: EAST WEST BANK
Reel/Frame 046956/0348 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 17, 2018
From: YANG, MICHAEL X.; MA, SHAWMING
To: MATTSON TECHNOLOGY, INC.
Reel/Frame 046857/0731 →