IP Library Granted Patent US 8,298,346
Granted Patent B2
US 8,298,346 · App. 12/466,744 · Granted Oct 30, 2012

Substrate processing method and substrate processing apparatus

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Quick Facts
Patent No.
US 8,298,346
App. No.
12/466,744
Granted
Oct 30, 2012
Kind
B2
Abstract

A substrate processing method includes: supplying a fluid to a resist on a substrate after an ion implantation in which the resist is used as a mask; and supplying a stripping liquid to the resist for stripping the resist after the supplying the fluid. A cured layer is formed in a surface of the resist in the ion implantation. The fluid is purified water or a mixed fluid of purified water and an inert gas. A volume flow rate of the purified water is not less than 1/400 of a volume flow rate of the inert gas when the mixed fluid is supplied as the fluid.

Claims (23)

1. A substrate processing method comprising:

supplying a mixed fluid of purified water and nitrogen gas to a resist on a substrate after an ion implantation in which said resist is used as a mask; and

supplying a stripping liquid to said resist for stripping said resist after said supplying said fluid,

wherein a cured layer is formed in a surface of said resist in said ion implantation,

and

a volume flow rate of said purified water is not less than 1/400 of a volume flow rate of said nitrogen gas.

2. The substrate processing method according to claim 1 , wherein said supplying said fluid includes

supplying said purified water at a temperature of not less than 50 degrees C.

3. The substrate processing method according to claim 1 , wherein said stripping liquid is SPM (sulfuric acid/hydrogen peroxide mixture).

4. The substrate processing method according to claim 1 , wherein said supplying said fluid includes

supplying said purified water at a flow rate of 1 L/min to 50 L/min.

5. The substrate processing method according to claim 1 , wherein said mixed fluid is supplied to said resist on said substrate with said substrate being rotated in said supplying said fluid.

6. A substrate processing method comprising:

supplying a mixed fluid of purified water and nitrogen gas to a resist on a substrate after an ion implantation in which said resist is used as a mask; and

supplying a stripping liquid to said resist for stripping said resist after said supplying said fluid,

wherein a cured layer is formed in a surface of said resist in said ion implantation, and

a volume flow rate of said purified water is between 1/100 and 1/400 of a volume flow rate of said nitrogen gas.

7. The substrate processing method according to claim 6 , wherein said supplying said fluid includes:

supplying said purified water at a temperature of not less than 50 degrees C.

8. The substrate processing method according to claim 6 , wherein said stripping liquid is SPM (sulfuric acid/hydrogen peroxide mixture).

9. The substrate processing method according to claim 6 , wherein said supplying said fluid includes:

supplying said purified water at a flow rate of 1 L/min to 50 L/min.

10. The substrate processing method according to claim 6 , wherein said mixed fluid is supplied to said resist on said substrate with said substrate being rotated in said supplying said fluid.

Assignments (3)
CHANGE OF ADDRESS Recorded Nov 29, 2017
From: RENESAS ELECTRONICS CORPORATION
To: RENESAS ELECTRONICS CORPORATION
Reel/Frame 044928/0001 →
CHANGE OF NAME Recorded Oct 26, 2010
From: NEC ELECTRONICS CORPORATION
To: RENESAS ELECTRONICS CORPORATION
Reel/Frame 025193/0165 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 15, 2009
From: SAITOU, SHUNSUKE
To: NEC ELECTRONICS CORPORATION
Reel/Frame 022691/0593 →