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    • 5. 发明授权
    • Method for forming micro-patterns by development
    • 通过开发形成微观图案的方法
    • US4690887A
    • 1987-09-01
    • US800100
    • 1985-11-22
    • Mitsutoshi FukudaMakoto FukutomiOsamu KogureKazunori Miyoshi
    • Mitsutoshi FukudaMakoto FukutomiOsamu KogureKazunori Miyoshi
    • G03F7/26G03F7/016G03F7/038G03F7/32G03C5/00
    • G03F7/038G03F7/325
    • Disclosed is a method for forming micro-patterns on base plates such as for semiconductor integrated circuits, particularly by development, wherein a radiation sensitive negative resist film is formed on the base plate and irradiated according to pattern designs, and the non-irradiated portions of the film is dissolved by a liquid developer comprising a mixture of a good solvent selected from the group of alkyl esters of acetic acid, having an alkyl group containing 1 to 5 carbon atoms, and a poor solvent selected from the group consisting of alicyclic compounds and alkyl ethers of ethyleneglycol having an alkyl group containing 1 to 5 carbon atoms. The method can minimize swelling of irradiated portions of the resist film and can accelerate dissolution of non-irradiated portions of the resist film, so that desired micro-patterns with excellent edge shape quality can be obtained.
    • 公开了一种在半导体集成电路,特别是用于半导体集成电路的基板上形成微图形的方法,其中在基板上形成辐射敏感的负型抗蚀剂膜并根据图案设计照射,并且未照射部分 该膜由液体显影剂溶解,该液体显影剂包括选自乙酸的烷基酯,具有1至5个碳原子的烷基的良溶剂和选自脂环族化合物和 具有1〜5个碳原子的烷基的乙二醇的烷基醚。 该方法可以使抗蚀剂膜的照射部分的溶胀最小化,并且可以加速抗蚀剂膜的未照射部分的溶解,从而可以获得具有优异的边缘形状质量的期望的微图案。
    • 8. 发明授权
    • Apparatus and method for writing storable images into a matrix-addressed
image-storing liquid crystal display device
    • 将可存储图像写入到矩阵寻址的图像存储液晶显示装置中的装置和方法
    • US3936815A
    • 1976-02-03
    • US492421
    • 1974-07-29
    • Osamu KogureHisao TakadaYoshinori KatoMasao Kawachi
    • Osamu KogureHisao TakadaYoshinori KatoMasao Kawachi
    • C09K19/54G02F1/133G02F1/1337G02F1/137G02F1/18
    • G02F1/13731C09K19/36C09K19/54G02F1/13306G02F1/13718
    • A matrix-addressed liquid crystal display device including a matrix-addressed display section is provided. The display section comprises a pair of optically transparent plates each of which having on one surface a plurality of parallel strip electrodes optically transparent and deposited through an optically transparent spacer, said pair of plates being parallelly arranged so that the electrodes will be inside and mutually intersect at right angles so as to form row and column electrode groups of a matrix, and a cholesteric phase liquid crystal filled between the respective plates, which liquid crystal being such that when a voltage applied to the electrodes is above a threshold level the molecular axes of the liquid crystal are aligned in the direction of electric field due to the voltage applied. The device utilized a nematic phase to cholesteric phase transition of the liquid crystal occurring when the voltage applied is maintained nearby the threshold level and becomes for a short time period below the threshold level.
    • 提供了一种包括矩阵寻址显示部分的矩阵寻址液晶显示装置。 显示部分包括一对光学透明板,每个光学透明板在一个表面上具有光学透明并通过光学透明间隔物沉积的多个平行条状电极,所述一对平板布置成使得电极将在内部并相互相交 以形成矩阵的列和列电极组,以及填充在各个板之间的胆甾醇相液晶,该液晶使得当施加到电极的电压高于阈值水平时,分子轴 由于施加的电压,液晶在电场方向上排列。 当施加的电压保持在阈值水平附近并且在低于阈值水平的短时间段内时,该装置利用向列相到出现的液晶的胆甾醇相变。