Multi-face forming mask device for vacuum deposition
First Claim
1. A gang-patterning mask device for vacuum evaporation having a plurality of affective mask parts arranged on longitudinal and transverse rows, said gang-patterning mask device comprising:
- a first mask provided with a plurality of windows; and
a second mask placed on the first mask and having a screen part provided with a plurality of fine slits extending a longitudinal direction;
wherein the screen part of the second mask is formed in an entire region in a transverse direction covering at least all the windows, and the screen part and the windows define the effective mask parts.
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Accused Products
Abstract
A second metal mask (13) having a screen part (13A) provided with a plurality of parallel, fine slits (13a) arranged at very small intervals is placed on a base plate (12) serving also as a first metal mask and provided with a plurality of windows (18) defining regions in which a material is to be deposited. One end of the second metal mask (13) is fastened to the base plate (12) by a mask clamp (20) and the other end of the same is fastened to a slider (23). Resilient force is applied to the slider (23) by compression coil springs (30). Thus, the screen part (13A) of the second metal mask (13) is tensioned and thereby the slits (13a) are stretched straight and are extended at predetermined pitches. A substrate (17) placed on the second mask (13) is subjected to a vacuum evaporation process to form fine patterns on the substrate (17) in a gang-patterning mode.
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Citations
21 Claims
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1. A gang-patterning mask device for vacuum evaporation having a plurality of affective mask parts arranged on longitudinal and transverse rows, said gang-patterning mask device comprising:
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a first mask provided with a plurality of windows; and
a second mask placed on the first mask and having a screen part provided with a plurality of fine slits extending a longitudinal direction;
wherein the screen part of the second mask is formed in an entire region in a transverse direction covering at least all the windows, and the screen part and the windows define the effective mask parts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification