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    • 53. 发明授权
    • Method for fabricating semiconductor device
    • 制造半导体器件的方法
    • US4419813A
    • 1983-12-13
    • US325375
    • 1981-11-27
    • Hiroshi Iwai
    • Hiroshi Iwai
    • H01L21/762H01L21/225
    • H01L21/76237Y10S438/978
    • A method for forming an isolation region on a semiconductor substrate which comprises steps of forming first a groove in said substrate, filling the groove with a first insulating film in a manner which may inevitably leave a gap between the wall of the groove and the each side of the first insulating film, forming a second insulating film on the surface of said substrate including said groove, and removing a surface layer of said second insulating film thereby forming an isolation region in the groove filled completely with the first and second insulating films.
    • 一种用于在半导体衬底上形成隔离区域的方法,包括以下步骤:在所述衬底中首先形成沟槽,用第一绝缘膜填充沟槽,其可能不可避免地在凹槽的壁和每个侧面之间留下间隙 的第一绝缘膜,在包括所述槽的所述基板的表面上形成第二绝缘膜,并且去除所述第二绝缘膜的表面层,从而在所述第一绝缘膜和第二绝缘膜完全填充的槽中形成隔离区。
    • 54. 发明授权
    • Circuit for controlling rotation of motor
    • 电机旋转控制电路
    • US4418304A
    • 1983-11-29
    • US251778
    • 1981-04-07
    • Hiroshi Iwai
    • Hiroshi Iwai
    • H02P29/00H02P23/00H02P5/16
    • H02P23/186Y10S388/901Y10S388/911Y10S388/915
    • A circuit for controlling rotation of motor comprises a frequency generator for generating a rotational velocity signal responsive to the rotational velocity of a motor whose rotation is to be controlled, reference signal generator for generating a reference signal, phase comparator for comparing the phases of the rotational velocity signal and the reference signal, a multiplexing circuit for multiplexing the rotational velocity signal and the output signal of the phase comparator, a sample-and-hold circuit for sampling and holding the output multiplexed signal of the multiplexing circuit by the rotational velocity signal, and a controlling circuit for controlling the rotation of the motor by the output signal of the sample-and-hold circuit.
    • 用于控制电机旋转的电路包括频率发生器,用于响应于要控制其旋转的电动机的旋转速度产生旋转速度信号,用于产生参考信号的参考信号发生器,用于比较旋转的相位的相位比较器 速度信号和参考信号,用于复用相位比较器的旋转速度信号和输出信号的多路复用电路,用于通过旋转速度信号对复用电路的输出复用信号进行采样和保持的采样和保持电路, 以及控制电路,用于通过采样保持电路的输出信号来控制电机的旋转。
    • 58. 发明授权
    • Low temperature curing high solid coating composition
    • 低温固化高固体涂料组合物
    • US4221683A
    • 1980-09-09
    • US886898
    • 1978-03-15
    • Yasusi NakateHiroshi IwaiKiyoshi Nanishi
    • Yasusi NakateHiroshi IwaiKiyoshi Nanishi
    • C08L61/20C09D133/06C09D161/20C08L33/14C08L61/32
    • C09D133/066C09D161/20C08L61/20
    • A low temperature curing high solid coating composition which comprises: (I) acrylic resin having a glass transition temperature of 20.degree. to -50.degree. C. and a hydroxyl value of 40 to 280, which is obtained by copolymerizing the monomer mixture comprising (a) acrylic ester and/or methacrylic ester, and if necessary, (b) acrylic acid or methacrylic acid, (II) amino-formaldehyde resin which is etherified with a monohydric alcohol, (III) an acid catalyst, and if necessary, (IV) cellulose derivatives and/or (V) metallic coordination compounds of titanium, zirconium and/or aluminium.The coating composition of the invention is characterized in that it has a high solid content and is cured at a low temperature and the obtained coating film has quite excellent properties of durability, hardness and chemical resistance.
    • 一种低温固化高固体涂料组合物,其包含:(I)玻璃化转变温度为20〜-50℃,羟基值为40〜280的丙烯酸树脂,其通过使包含(a )丙烯酸酯和/或甲基丙烯酸酯,如果需要,(b)丙烯酸或甲基丙烯酸,(II)与一元醇醚化的氨基甲醛树脂,(III)酸催化剂,如果需要,(IV )纤维素衍生物和/或(V)钛,锆和/或铝的金属配位化合物。 本发明的涂料组合物的特征在于其固体含量高,在低温下固化,所得涂膜具有相当优异的耐久性,硬度和耐化学性能。