Mask supporting apparatus using vacuum and light exposing...

Details Mask supporting apparatus using vacuum and light exposing... Mask supporting apparatus using vacuum and light exposing...

2007-04-17

2007-04-17

Nguyen, Henry Hung (Department: 2851)

Photocopying

Projection printing and copying cameras

Detailed holder for original

C355S072000

Reexamination Certificate

active

10967367

ABSTRACT:
A mask supporting apparatus includes an absorption glass provided with at least one vacuum hole, a mask provided with a predetermined pattern and attached on a bottom surface of the absorption glass, and an absorption pad disposed between the absorption glass and the mask to define a space between the absorption glass and the mask. Air in the space is exhausted through the vacuum hole to securely fix the mask on the absorption glass.

REFERENCES:
patent: 4054383 (1977-10-01), Lin et al.
patent: 6529266 (2003-03-01), Sandstrom
patent: 6760094 (2004-07-01), Shimada
patent: 6822731 (2004-11-01), Laganza et al.
patent: 360146674 (1985-08-01), None

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