Photocopying – Projection printing and copying cameras – Image transferred to or from curved surface
Reexamination Certificate
2007-03-13
2007-03-13
Mathews, Alan (Department: 2851)
Photocopying
Projection printing and copying cameras
Image transferred to or from curved surface
C355S072000, C355S077000, C430S311000
Reexamination Certificate
active
10538979
ABSTRACT:
A semiconductor manufacturing station (50) exposes light on a surface area of a spherical semiconductor device or ball (52). A mask (56) receives light from a light source (54) and passing the light to the surface area of the semiconductor ball according to a pattern of the mask. A lens (62) is positioned between the mask and the semiconductor ball such that a focal distance between the lens and the ball is variable to focus the light passed by the pattern of the mask on surface areas of the object. The pattern of the mask is made a series of concentric circles or rings (74–80) to focus light on desired surfaces of the semiconductor ball. The manufacturing system can be a plurality of optical stations (104–110) each configured to expose a circle or ring on the surface of the semiconductor ball as it passes in proximity to the plurality of optical stations.
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Atkins Robert D.
Mathews Alan
Quarles & Brady LLP
Yamatake Corporation
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