Mask, method of producing mask, and method of producing...

Details Mask, method of producing mask, and method of producing... Mask, method of producing mask, and method of producing...

2006-12-05

2006-12-05

Rosasco, S. (Department: 1756)

Joints and connections

Inflatable connector

Reexamination Certificate

active

07144178

ABSTRACT:
To provide a mask able to prevent a drop in pattern position accuracy due to the influence of internal stress of a membrane and able to align patterns including complementary divided patterns precisely, a method of producing the same, and a method of producing a semiconductor device. A stencil mask having lattice-shaped struts formed by etching a silicon wafer on four regions of a membrane wherein the lattices are offset from each other in the four regions and all of the struts are connected to other struts or the silicon wafer around the membrane (frame), a method of producing a stencil mask, and a method of producing a semiconductor device.

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International Search Report, Sep. 2002.

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