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Title:
MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE AND SEMICONDUCTOR WAFER HOLDER FOR USE IN METHOD
Document Type and Number:
Japanese Patent JP2006120889
Kind Code:
A
Abstract:

To provide a method capable of exposure to a wafer circumference in the liquid immersion exposure method of a semiconductor substrate (hereinafter referred to as a wafer).

The liquid immersion exposure method is to prevent a liquid immersion solution from leaking from a wafer edge by bringing another member into close contact with the wafer edge with proper force, and filling uniformly the liquid immersion solution between a projection optical system and the wafer, in order to manufacture the semiconductor device on the wafer edge. The wafer holder has a function of bringing the wafer edge into close contact with the another member within a range of 3 mm of the wafer edge, i.e., in the neighborhood of the wafer edge such that the liquid immersion solution leaks to or drops onto the wafer chuck, wafer rear surface, and a wafer stage. In a typical example; the wafer holder includes the wafer chuck 2 for supporting a wafer and attracting and fixing the wafer, an edge-close-contact member 6 for preventing liquid from leaking from the wafer edge, a unit for driving the edge-close-contact member, and a plate 5 being substantially flush with the wafer surface installed on a wafer outer periphery.


Inventors:
ISHIMARU TOSHIYUKI
Application Number:
JP2004307777A
Publication Date:
May 11, 2006
Filing Date:
October 22, 2004
Export Citation:
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Assignee:
SONY CORP
International Classes:
H01L21/027; G03F7/20; H01L21/683
Attorney, Agent or Firm:
Mitsuyuki Matsuyama