Photocopying – Projection printing and copying cameras – Image transferred to or from curved surface
Patent
1999-07-09
2000-05-09
Metjahic, Safet
Photocopying
Projection printing and copying cameras
Image transferred to or from curved surface
355 53, G03B 2758, G03B 2742
Patent
active
060611189
ABSTRACT:
A system and a method for focusing an image onto the surface of a nonplanar substrate or device, such as a spherical semiconductor substrate, that substantially eliminates misalignment and overlapping problems between neighboring images. The system includes a plurality of mirrors arranged in a ring, a support reciprocatingly positioned relative to the center of the ring of mirrors for positioning the nonplanar substrate or device relative to the ring of mirrors. The nonplanar substrate or device is positioned such that each mirror will be capable of reflecting a focused image onto the surface of the substrate. The image is generated using a mask positioned relative to the ring of mirrors and illuminated to project the image onto the surface of the nonplanar substrate or device. The method includes the steps of positioning the nonplanar substrate or device within a ring of mirrors; creating a mask having a plurality of segments, wherein each segment has stitching interconnection, and projecting an image of the mask onto the ring of mirrors such that the image is reflected onto the surface of the nonplanar substrate or device.
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Ball Semiconductor Inc.
Metjahic Safet
Nguyen Hung Henry
LandOfFree
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