US2009042149A1PendingUtilityA1
Rinsing method and developing method
Est. expiryJul 14, 2024(expired)· nominal 20-yr term from priority
H10P 72/0414G03F 7/40
49
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Claims
Abstract
A rinsing process is performed by supplying a rinsing-liquid onto a substrate with a light-exposed pattern formed thereon and treated by a developing process. The rinsing liquid contains a polyethylene glycol family surfactant or an acetylene glycol family surfactant in a critical micelle concentration or less. Preferably, the surfactant includes a hydrophobic group having a carbon number of larger than 11 and having no double bond or triple bond therein.
Claims
exact text as granted — not AI-modified1 - 6 . (canceled)
7 . A developing method for developing a light-exposed pattern, after a resist film formed on a substrate is subjected to light exposure with a predetermined pattern, the method comprising:
applying a developing solution onto the resist film disposed on the substrate after the light exposure, and performing development; throwing off the developing solution from the substrate after the development; supplying a rinsing liquid onto the substrate, wherein the rinsing liquid contains a polyethylene glycol family surfactant in a critical micelle concentration or less, and the surfactant includes a hydrophobic group having a carbon number of larger than 11 and including only single bonds and excluding double and triple bonds; supplying purified water onto the substrate to replace the rinsing liquid present on the substrate with purified water; and rotating the substrate to expand purified water on the substrate, and to throw off purified water to dry the substrate.
8 . The developing method according to claim 7 , wherein the surfactant contained in the rinsing liquid has a molecular weight of 1,280 or more.
9 . The developing method according to claim 7 , wherein supplying the rinsing liquid onto the substrate uses a nozzle configured to deliver the rinsing liquid essentially as a belt, and comprises moving the nozzle for scanning above the substrate, or setting the nozzle above the substrate to be directed in a radial direction of the substrate and rotating the substrate at a predetermined rotation number, while delivering the rinsing liquid essentially as a belt from the nozzle.
10 . A developing method for developing a light-exposed pattern, after a resist film formed on a substrate is subjected to light exposure with a predetermined pattern, the method comprising:
applying a developing solution onto the resist film disposed on the substrate after the light exposure, and performing development; throwing off the developing solution from the substrate after the development; supplying purified water onto the substrate, supplying a rinsing liquid onto the substrate to replace purified water present on the substrate with the rinsing liquid, wherein the rinsing liquid contains a polyethylene glycol family surfactant in a critical micelle concentration or less, and the surfactant includes a hydrophobic group having a carbon number of larger than 11 and including only single bonds and excluding double and triple bonds; and rotating the substrate to expand the rinsing liquid on the substrate, and to throw off the rinsing liquid to dry the substrate.
11 . The developing method according to claim 10 , wherein the surfactant contained in the rinsing liquid has a molecular weight of 1,280 or more.
12 . The developing method according to claim 10 , wherein supplying the rinsing liquid onto the substrate uses a nozzle configured to deliver the rinsing liquid essentially as a belt, and comprises moving the nozzle for scanning above the substrate, or setting the nozzle above the substrate to be directed in a radial direction of the substrate and rotating the substrate at a predetermined rotation number, while delivering the rinsing liquid essentially as a belt from the nozzle.
13 . A developing method for developing a light-exposed pattern, after a resist film formed on a substrate is subjected to light exposure with a predetermined pattern, the method comprising:
applying a developing solution onto the resist film disposed on the substrate after the light exposure, and performing development; throwing off the developing solution from the substrate after the development; supplying purified water onto the substrate, supplying a rinsing liquid onto the substrate to replace purified water present on the substrate with the rinsing liquid, wherein the rinsing liquid contains a polyethylene glycol family surfactant in a critical micelle concentration or less, and the surfactant includes a hydrophobic group having a carbon number of larger than 11 and including only single bonds and excluding double and triple bonds; supplying purified water onto the substrate to replace the rinsing liquid present on the substrate with purified water; and rotating the substrate to expand purified water on the substrate, and to throw off purified water to dry the substrate.
14 . The developing method according to claim 13 , wherein the surfactant contained in the rinsing liquid has a molecular weight of 1,280 or more.
15 . The developing method according to claim 13 , wherein supplying the rinsing liquid onto the substrate uses a nozzle configured to deliver the rinsing liquid essentially as a belt, and comprises moving the nozzle for scanning above the substrate, or setting the nozzle above the substrate to be directed in a radial direction of the substrate and rotating the substrate at a predetermined rotation number, while delivering the rinsing liquid essentially as a belt from the nozzle.
16 . A developing method for developing a light-exposed pattern, after a resist film formed on a substrate is subjected to light exposure with a predetermined pattern, the method comprising:
applying a developing solution onto the resist film disposed on the substrate after the light exposure, and performing development; throwing off the developing solution from the substrate after the development; supplying a rinsing liquid onto the substrate, wherein the rinsing liquid contains a polyethylene glycol family surfactant in a critical micelle concentration or less, and the surfactant includes a hydrophobic group having a carbon number of larger than 11 and including only single bonds and excluding double and triple bonds; throwing off the rinsing liquid from the substrate; applying a developing solution onto the substrate again, and performing development; throwing off the developing solution from the substrate after the development; supplying purified water onto the substrate; and rotating the substrate to expand purified water on the substrate, and to throw off purified water to dry the substrate.
17 . The developing method according to claim 16 , wherein the surfactant contained in the rinsing liquid has a molecular weight of 1,280 or more.
18 . The developing method according to claim 16 , wherein supplying the rinsing liquid onto the substrate uses a nozzle configured to deliver the rinsing liquid essentially as a belt, and comprises moving the nozzle for scanning above the substrate, or setting the nozzle above the substrate to be directed in a radial direction of the substrate and rotating the substrate at a predetermined rotation number, while delivering the rinsing liquid essentially as a belt from the nozzle.
19 . A developing method for developing a light-exposed pattern, after a resist film formed on a substrate is subjected to light exposure with a predetermined pattern, the method comprising:
supplying a rinsing liquid onto the substrate, wherein the rinsing liquid contains a polyethylene glycol family surfactant in a critical micelle concentration or less, and the surfactant includes a hydrophobic group having a carbon number of larger than 11 and including only single bonds and excluding double and triple bonds; throwing off the rinsing liquid from the substrate to dry the substrate; applying a developing solution onto the substrate, and performing development of the resist film; throwing off the developing solution from the substrate after the development; supplying purified water onto the substrate; and rotating the substrate to expand purified water on the substrate, and to throw off purified water to dry the substrate.
20 . The developing method according to claim 19 , wherein the surfactant contained in the rinsing liquid has a molecular weight of 1,280 or more.
21 . The developing method according to claim 19 , wherein supplying the rinsing liquid onto the substrate uses a nozzle configured to deliver the rinsing liquid essentially as a belt, and comprises moving the nozzle for scanning above the substrate, or setting the nozzle above the substrate to be directed in a radial direction of the substrate and rotating the substrate at a predetermined rotation number, while delivering the rinsing liquid essentially as a belt from the nozzle.Join the waitlist — get patent alerts
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