摘要:
A silica glass has a structure determination temperature of 1200 K or lower and an OH group concentration of at least 1,000 ppm. The silica glass is used for photolithography together with light in a wavelength region of 400 nm or shorter.
摘要:
A silica glass has a structure determination temperature of 1200 K or lower and a hydrogen molecule concentration of 1.times.10.sup.17 molecules/cm.sup.3 or more. The silica glass is used together with light in a wavelength region of 400 nm or shorter.
摘要翻译:石英玻璃的结构测定温度为1200K以下,氢分子浓度为1×10 17分子/ cm 3以上。 石英玻璃与波长400nm以下的光一起使用。
摘要:
A silica glass has a structure determination temperature of 1200 K or lower and an OH group concentration of at least 1,000 ppm. The silica glass is used for photolithography together with light in a wavelength region of 400 nm or shorter.
摘要:
The invention relates to fluorine-containing silica glasses, and methods of their production. The silica glass may be used for an ultraviolet light optical system in which light in a wavelength region of 200 nm or less, such as an ArF (193 nm) excimer laser, is used. The invention also relates to a projection exposure apparatus containing fluorine-containing glass of the invention.
摘要:
Recent UV-lithography is required to provide a fine and sharp pattern with a line width of 0.5 .mu.m or less. The present invention provides a silica glass member adapted for use as an optical element for UV-lithography, by giving consideration to the RMS value of wave front aberration and the slant element of refractive index, which have not been considered in the art. Also, there is provided a silica glass member excellent in durability to the ultraviolet irradiation, by introduction of hydrogen molecules at the synthesis of the silica glass, instead of using a secondary treatment for hydrogen introduction.
摘要:
A method for producing a synthetic silica glass for use with vacuum ultraviolet light comprises the steps of: (a) producing a soot preform; (b) heating the soot preform in an atmosphere containing fluorine to obtain a fluorine-doped soot preform; (c) consolidating the fluorine-doped soot preform to obtain a fluorine-doped synthetic silica glass; and (d) heating the fluorine-doped synthetic silica glass in an atmosphere containing hydrogen gas to obtain a synthetic silica glass doped with fluorine and hydrogen molecules. A synthetic silica glass having both a high transmittance and high ultraviolet light resistance with respect to light in the vacuum ultraviolet wavelength range can be produced.
摘要:
A silica glass has a structure determination temperature of 1200K or lower and a hydrogen molecule concentration of 1.times.10.sup.17 molecules/cm.sup.3 or more. The silica glass is used together with light in a wavelength region of 400 nm or shorter. The silica glass is produced by heating a silica glass ingot having a hydrogen molecule concentration of 1.times.10.sup.17 molecules/cm.sup.3 or more to a temperature of 1200-1350K, retaining the ingot at that temperature for a given period of time, and then, cooling the ingot to a temperature of 1000K or lower at a temperature-lowering rate of 50K/hr or less to anneal the ingot.
摘要翻译:石英玻璃的结构测定温度为1200K以下,氢分子浓度为1×10 17分子/ cm 3以上。 石英玻璃与波长400nm以下的光一起使用。 通过将氢分子浓度为1×10 17分子/ cm 3以上的二氧化硅玻璃锭加热至1200〜1350K的温度,将该锭保持在该温度下一定时间,然后冷却该锭 以50K /小时以下的降温速度升温至1000K以下的温度,对该锭进行退火。
摘要:
Recent UV-lithography is required to provide a fine and sharp pattern with a line width of 0.5 .mu.m or less. The present invention provides a silica glass member adapted for use as an optical element for UV-lithography, by giving consideration to the RMS value of wave front aberration and the slant element of refractive index, which have not been considered in the art. Also, there is provided a silica glass member excellent in durability to the ultraviolet irradiation, by introduction of hydrogen molecules at the synthesis of the silica glass, instead of the using a secondary treatment for hydrogen introduction.
摘要:
Recent UV-lithography is required to provide a fine and sharp pattern with a line width of 0.5 .mu.m or less. The present invention provides a silica glass member adapted for use as an optical element for UV-lithography, by giving consideration to the RMS value of wave front aberration and the slant element of refractive index, which have not been considered in the art. Also there is provided a silica glass member excellent in durability to the ultraviolet irradiation, by introduction of hydrogen molecules at the synthesis of silica glass, instead of the secondary treatment for hydrogen introduction.
摘要:
A socket for an electrical part of the present invention has a socket body provided with an accommodation portion in which an IC package is accommodated, an open/close mechanism having a heat sink for performing radiation of heat of the IC package accommodated on the socket body, and a latch member for pressing the IC package accommodated on the socket body, in which opening and closing timings of the open/close mechanism and the latch member are set such that the latch member is first closed and the open/close mechanism is thereafter closed.