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Title:
COATING APPARATUS FOR FLATTENING LIQUIDLIKE AGENT OF SEMICONDUCTOR WAFER
Document Type and Number:
Japanese Patent JPH05315248
Kind Code:
A
Abstract:

PURPOSE: To set conditions to be obtained for coating flattening liquidlike agent and cleaning to remove its peripheral edge independently from one another.

CONSTITUTION: A coating stage 2 and a cleaning stage 3 are individually provided. A conveyor 4, a hot plate 5 for baking flattening liquidlike agent, a loader 1 and an unloader 6 are disposed near it. The stage 2 has a vacuum chuck for sucking a wafer by rotating it by a spin motor, a coating cup opened at its upper part to surround the wafer, and a nozzle for dropping the agent above a central part of the wafer. The stage 3 similarly has them, but is different from the stage 2 at points in which an inner periphery of a cleaning cup is wider than that of the coating cup and a nozzle for discharging solvent is disposed above a peripheral edge of the wafer.


Inventors:
SAKAI YOSHIYUKI
Application Number:
JP11383992A
Publication Date:
November 26, 1993
Filing Date:
May 07, 1992
Export Citation:
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Assignee:
FUJI ELECTRIC CO LTD
International Classes:
H01L21/027; H01L21/304; H01L21/677; H01L21/68; (IPC1-7): H01L21/027; H01L21/304; H01L21/68
Attorney, Agent or Firm:
Iwao Yamaguchi