摘要:
A photomask material according to the present invention comprises a transparent substrate and a silicide film of a transition metal formed on the transparent substrate.
摘要:
A second light transmit portion of a phase shift mask is formed of a molybdenum silicide nitride oxide, or a molybdenum silicide oxide, or a chromium nitride oxide, or a chromium oxide, or a chromium carbide nitride oxide film converting a phase of transmitted exposure light by 180.degree. and having the transmittance of at least 2% and less than 5%. In the manufacturing method of the second light transmit portion, a molybdenum silicide nitride oxide film, or a molybdenum silicide oxide film, or a chromium nitride oxide film, or a chromium oxide film, or a carbide nitride oxide film is formed by a sputtering method. Consequently, with a conventional sputtering apparatus, the second light transmit portion can be formed, and additionally, etching process of the phase shifter portion is required only once, so that probabilities of defects and errors in the manufacturing process can be decreased.
摘要:
A second light transmit portion of a phase shift mask is formed of a molybdenum silicide nitride oxide or a molybdenum silicide oxide a chromium nitride oxide, or a chromium oxide, or a chromium carbide nitride oxide film converting a phase of transmitted exposure light by 180.degree. and having the transmittance of 5-40%. In the manufacturing method of the second light transmit portion, a molybdenum silicide nitride oxide film or a molybdenum silicide oxide film a chromium nitride oxide film, or a chromium oxide film, or a carbide nitride oxide film is formed by a sputtering method. Consequently, with a conventional sputtering apparatus, the second light transmit portion can be formed, and additionally, etching process of the phase shifter portion is required only once, so that probabilities of defects and errors in the manufacturing process can be decreased.
摘要:
A second light transmit portion of a phase shift mask is formed of a molybdenum silicide nitride oxide, or a molybdenum silicide oxide, or a chromium nitride oxide, or a chromium oxide, or a chromium carbide nitride oxide film converting a phase of transmitted exposure light by 180.degree. and having the transmittance of at least 2% and less than 5%. In the manufacturing method of the second light transmit portion, a molybdenum silicide nitride oxide film, or a molybdenum silicide oxide film, or a chromium nitride oxide film, or a chromium oxide film, or a carbide nitride oxide film is formed by a sputtering method. Consequently, with a conventional sputtering apparatus, the second light transmit portion can be formed, and additionally, etching process of the phase shifter portion is required only once, so that probabilities of defects and errors in the manufacturing process can be decreased.
摘要:
A photomask material comprising a transparent glass substrate, a polysilicon layer formed on the transparent glass substrate, a transition metal film formed on the polysilicon layer, the metal film being capable of being etched by means of the same dry etching process as that used for the polysilicon layer, and a protective polysilicon layer formed on the transition metal film.
摘要:
A photomask material comprising a transparent glass substrate and a metal silicide film formed on the transparent glass substrate, the rate of a silicon and a metal in the metal silicide film being continuously varied so as to increase the amount of metal toward an upper surface of the metal silicide film.
摘要:
This disclosure sets forth a method of manufacturing a gate turn-off (GTO) thyristor which includes the step of altering the lateral electrical resistance of one base region by out diffusion from selected portions of the base region.