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    • 131. 发明授权
    • Electric fuse for a redundancy circuit
    • 电熔丝用于冗余电路
    • US4984054A
    • 1991-01-08
    • US481683
    • 1990-02-20
    • Michihiro YamadaHiroshi MiyamotoTadato YamagataShigeru Mori
    • Michihiro YamadaHiroshi MiyamotoTadato YamagataShigeru Mori
    • H01L21/82H01H37/76H01L21/3205H01L23/525H01L27/10
    • H01L23/5256H01L2924/0002
    • The present invention comprises a field oxide film formed on a silicon substrate, an underlying film of polycrystal silicon formed on a portion thereof and an insulating film formed so as to cover the field oxide film comprising the underlying film. A surface stepped portion of the insulating film is formed by a portion with an underlying film and a portion without an underlying film under the insulating film, and a blowout portion of a fuse is formed along the surface stepped portion. There are terminal portions at both ends of the blowout portion of the fuse and an aluminum line is connected thereto. In addition, the whole portions comprising the fuse portion are covered with another insulating film and the whole is protected. The fuse is employed as one example in a redundancy circuit of a MOS dynamic RAM having redundancy memory cells.
    • 本发明包括形成在硅衬底上的场氧化物膜,形成在其一部分上的多晶硅的下面的膜和形成为覆盖包括下面的膜的场氧化物膜的绝缘膜。 绝缘膜的表面阶梯部分由具有下面的膜的部分和在绝缘膜下方没有下面的膜的部分形成,并且沿表面台阶形成熔丝的吹出部分。 在保险丝的吹出部分的两端有端子部分,铝线连接到其上。 此外,包括熔丝部分的整个部分被另一绝缘膜覆盖,并且整体被保护。 在具有冗余存储单元的MOS动态RAM的冗余电路中采用熔丝作为一个例子。
    • 133. 发明授权
    • Lens system for projection television receivers
    • 投影电视接收机镜头系统
    • US4884879A
    • 1989-12-05
    • US911070
    • 1986-09-24
    • Kyohei FukudaSoichi SakuraiKoji HirataShigeru Mori
    • Kyohei FukudaSoichi SakuraiKoji HirataShigeru Mori
    • H04N5/74G02B13/16G02B13/18
    • G02B9/34G02B13/16G02B13/18
    • An optical system of a projection television receiver for projecting pictures from a picture tube onto a screen, comprising a fluorescent face constituting the tube face of the receiver tube having a nonspherical shape in such a direction as to compensate the curve of the image face of the projected picture on the screen, and further comprising lenses arranged from the screen side to the tube face of the picture tube in the order of:(A) a first lens having relatively weak power (reciprocal of focal distance) and having a nonspherical shape at least at one face;(B) a second lens having relatively strong positive power;(C) a third lens having relatively weak power and having a nonspherical shape at least at one face; and(D) a fourth lens having relatively strong negative power and having a concave shape at the face of the screen side.
    • 一种投影电视接收机的光学系统,用于将图像从显像管投影到屏幕上,包括构成接收管的管面的荧光面,其方向具有非球面形状,以补偿图像的图像面的曲线 并且还包括从屏幕侧到显像管的管面布置的透镜,其顺序为:(A)具有相对弱的功率(焦距的往复)并且具有非球面形状的第一透镜 最少在一个脸上 (B)具有相对较强正功率的第二透镜; (C)至少在一个面上具有较弱功率并具有非球形形状的第三透镜; 和(D)具有相对较强的负功率并且在屏幕侧的表面具有凹形形状的第四透镜。