Transistor with overlapping gate/drain and two-layered gate structures
    3.
    发明授权
    Transistor with overlapping gate/drain and two-layered gate structures 失效
    具有重叠栅极/漏极和双层栅极结构的晶体管

    公开(公告)号:US5053849A

    公开(公告)日:1991-10-01

    申请号:US515659

    申请日:1990-04-25

    摘要: Herein disclosed is a semiconductor device of high density. The semiconductor device having a high density and a microstructure is required to have a high breakdown voltage and a high speed even with a low supply voltage. The semiconductor device comprises: a semiconductor body; a gate insulating film formed over the body; and a MOS transistor having a source/drain region formed in the body and a gate electrode film formed over the gate insulating film. The gate electrode film is composed of two or more films having different etching rates. The gate etching is stopped at the interface of the composite film to form an inverse-T gate electrode structure; and in that an electric conduction is observed between the component films. Thus, the overlap between the gate and the drain can be controlled.

    摘要翻译: 这里公开的是高密度的半导体器件。 具有高密度和微结构的半导体器件即使在低电源电压下也需要具有高击穿电压和高速度。 半导体器件包括:半导体本体; 形成在主体上的栅极绝缘膜; 以及形成在体内的源极/漏极区域和形成在栅极绝缘膜上的栅电极膜的MOS晶体管。 栅极电极膜由具有不同蚀刻速率的两个或更多个膜组成。 栅极蚀刻停止在复合膜的界面处以形成反T栅电极结构; 并且在组件膜之间观察到导电。 因此,可以控制栅极和漏极之间的重叠。

    X-ray mask and method for producing same
    6.
    发明授权
    X-ray mask and method for producing same 失效
    X射线掩模及其制造方法

    公开(公告)号:US5177773A

    公开(公告)日:1993-01-05

    申请号:US674406

    申请日:1991-03-25

    IPC分类号: G03F1/22

    CPC分类号: G03F1/22

    摘要: An X-ray mask comprises an absorber pattern composed of a material capable of absorbing X-ray, a mask substrate for supporting the absorber pattern, composed of a material capable of transmitting X-ray, and a support frame for supporting the mask substrate, wherein the mask substrate is composed of a mask substrate material whose impurity content is suppressed to reduce positional distortions generated by X-ray radiation. Generation of positional distortions by X-ray exposure is inhibited and an arrangement of mask pattern can be ensured with a high precision.

    摘要翻译: X射线掩模包括由能够吸收X射线的材料构成的吸收体图案,由能够透射X射线的材料构成的用于支撑吸收体图案的掩模基板和支撑掩模基板的支撑框架, 其特征在于,所述掩模基板由掩模基板材料构成,所述掩模基板材料的杂质含量被抑制以减少由X射线辐射产生的位置变形。 通过X射线曝光产生位置失真,可以高精度地确保掩模图案的配置。