Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Electron beam imaging
Reexamination Certificate
2008-01-29
2008-01-29
Young, Christopher G. (Department: 1756)
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Electron beam imaging
C430S005000, C430S311000, C430S312000, C430S313000, C430S314000, C430S322000, C430S323000, C430S324000, C430S942000
Reexamination Certificate
active
07323291
ABSTRACT:
The present invention relates to preparation of patterned workpieces in the production of semiconductor and other devices. Methods and devices are described utilizing resist and transfer layers over a workpiece substrate. The methods and devices produce small feature dimensions in masks and phase shift masks. The methods described may apply to both masks and direct writing on other workpieces having similarly small features, such as semiconductor, cryogenic, magnetic and optical microdevices.
REFERENCES:
patent: 4530891 (1985-07-01), Nagarekawa et al.
patent: 4782008 (1988-11-01), Babich et al.
patent: 5455145 (1995-10-01), Tarumoto
patent: 5486424 (1996-01-01), Nakato et al.
patent: 5487967 (1996-01-01), Hutton et al.
patent: 5510230 (1996-04-01), Tennant et al.
patent: 6001513 (1999-12-01), Hector
patent: 6645677 (2003-11-01), Sandstrom
patent: 7153634 (2006-12-01), Sandstrom
patent: 0766138 (1996-09-01), None
patent: 0766138 (1996-09-01), None
patent: 2189903 (1987-11-01), None
patent: 03116147 (1989-09-01), None
M. Hatzakis et al., “New High-Resolution and High Sensitivity Deep UV, X-ray and Electron-Beam Resists”, Journal of the Electrochemical Society, vol. 138, No. 4, pp. 1076-1079.
D.F. Witman et al., “A Simple Bilayer Lift-Off Process”, Microelectric Engineering, vol. 11, No. 1-4, pp. 549-552.
J. Shaw et al., “Polysiloxanes for Optical Lithography”, Solid State Technology, vol. 30, No. 6, pp. 83-89.
E. Babich et al., “Diazopolysiloxanes: Unique Imageable Barrier Layers”, Microelectronic Engineering, vol. 5, No. 1-4, pp. 299-213.
J. Paraszczak et al., “Plasma Etching of Polymers for Multilayer Lithography”, Microcircuit Engineering 84 International Conference Proceedings, pp. 517.526.
International Search Report for Intl. Application No. PCT/SE01/01893 mailed Feb. 15, 2002.
Beffel, Jr. Ernest J.
Haynes Beffel & Wolfeld LLP
Micronic Laser Systems AB
Young Christopher G.
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