Patent · US Expired

Method and apparatus for processing substrate

US6238511A · kind A · utility

15Cited by
8References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 26, 1998
Grant dateMay 29, 2001
Priority date
Expiry dateAug 26, 2018

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T156/1116
  • WIPO fieldSurface technology, coating
  • WIPO sectorChemistry

Abstract

A method of processing a substrate for removing a coating film from a substrate by dissolving the coating film with a solvent, comprising the steps of (a) supplying a solvent independently to each of peripheral portions of an upper surface side and a lower surface side of the substrate, and (b) supplying the solvent to the peripheral portion of the lower surface side of the substrate in an amount lower than the solvent supplied to the peripheral portion of the lower surface side in the step (a) or lower than that supplied to the peripheral portion of the upper surface side in this step (b), or terminating a supply of the solvent.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.