Radiation imagery chemistry: process – composition – or product th – Radiation modifying product or process of making – Radiation mask
Reexamination Certificate
2004-12-29
2009-10-20
Rosasco, Stephen (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Radiation modifying product or process of making
Radiation mask
Reexamination Certificate
active
07604905
ABSTRACT:
Photomasks are disclosed. A disclosed example photomask comprises: a first pattern located along an axis of the photomask; at least one second pattern located a distance from and a predetermined angle to the first pattern; and slits made of Cr on at least one end of each of the first and second patterns, wherein the photomask is a Cr-less mask.
REFERENCES:
patent: 5858580 (1999-01-01), Wang et al.
patent: 5989756 (1999-11-01), Nakae
patent: 6406818 (2002-06-01), Zemen et al.
patent: 6828068 (2004-12-01), Progler et al.
patent: 10-2002-0090487 (2002-12-01), None
patent: WO 03/054626 (2003-07-01), None
Dongbu Electronics Co. Ltd.
Rosasco Stephen
Saliwanchik Lloyd & Saliwanchik
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