Zobrazeno 1 - 6
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pro vyhledávání: '"Michael C. Tipton"'
Publikováno v:
SPIE Proceedings.
We have investigated the use of annular illumination on a KrF excimer laser stepper ((lambda) equals 248 nm) working near the resolution limit of the lens. The numerical aperture of the lens was 0.48 and the illuminator-lens combination produced a pa
Autor:
Maureen A. Hanratty, Michael C. Tipton
Publikováno v:
SPIE Proceedings.
Deep UV lithography is an enabling technology for the fabrication of 64 megabit DRAM class devices. Wafer steppers operating at 248 nm currently provide both the resolution and the overlay capability to meet the stringent reguirements imposed by next
Publikováno v:
Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures. 8:1749
This paper discusses the use of surface imaging lithography for deep UV step and repeat applications. In particular, results obtained using the DESIRE process are presented. It is shown that surface imaging is a very attractive option for 248 nm lith
Publikováno v:
Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures. 8:1740
This paper discusses the application of a deep wafer stepper and associated photoresist systems to advanced semiconductor processing. It is shown that, even with the limited number of photoresists available, deep UV lithography is a viable candidate
Publikováno v:
Advances in Resist Technology and Processing VI.
The standard Rayleigh relation for the resolution of an optical system states that the resolution is proportional to the exposure wavelength divided by the numerical aperture of the system. The constant of proportionality "k" is directly effected by
Publikováno v:
SPIE Proceedings.
A method of stepper lens evaluation has been developed which utilizes a simple resolution test pattern of the type usually supplied with the stepper. Measurements are made using an automated field emission SEM equipped to perform whole wafer non-dest