J
John H. McCoy
Researcher at Nikon
Publications - 9
Citations - 208
John H. McCoy is an academic researcher from Nikon. The author has contributed to research in topics: Wafer & Photoresist. The author has an hindex of 7, co-authored 9 publications receiving 208 citations.
Papers
More filters
Patent
High throughput electron beam lithography system
Michael R. Sogard,John H. McCoy +1 more
TL;DR: In this paper, the authors describe an electron beam lithography system having a beamlet shaping section that includes a first multi-aperture array having m rows and n columns of apertures having a first shape and a second multi-approach array with m rows/columns having a second shape.
Patent
Wafer inspection method and apparatus using diffracted light
TL;DR: In this paper, an incident monochromatic light source is provided from an elongated and extended source to illuminate the entire wafer surface, and the particular wavelength of the incident light is predetermined to allow optimum detection of defects in the periodic pattern on the wafer.
Patent
Semiconductor wafer alignment using backside illumination
Michael R. Sogard,John H. McCoy +1 more
TL;DR: In this article, a projection exposure apparatus for exposing a semiconductor wafer to a pattern, formed on a reticle, using a projection lens system is presented. But the alignment optical system detects an alignment mark provided on the frontside of the wafer from the backside of wafer.
Patent
Direct reticle to wafer alignment using fluorescence for integrated circuit lithography
TL;DR: In this paper, the reticle marks are imaged in light at the exposure wavelength and the exposure light and fluorescent light are scattered and reflected from the wafer surface; the presence of wafer alignment marks changes this light collection.
Patent
Atomic force microscope measurement process for dense photoresist patterns
John H. McCoy,Kyoichi Suwa +1 more
TL;DR: In this article, a double mask exposure process is used to measure the sidewall of photoresist features formed on a semiconductor substrate, in spite of the small (submicron) physical dimensions involved.