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    Method of manufacturing a field effect transistor with a T-shaped gate electrode and reduced capacitance
    1.
    发明授权
    Method of manufacturing a field effect transistor with a T-shaped gate electrode and reduced capacitance 失效
    制造具有T形栅电极和降低电容​​的场效应晶体管的方法

    公开(公告)号：US5358885A

    公开(公告)日：1994-10-25

    申请号：US46811

    申请日：1993-04-16

    申请人： Tomoki Oku ,  Masayuki Sakai ,  Yasutaka Kohno

    发明人： Tomoki Oku ,  Masayuki Sakai ,  Yasutaka Kohno

    IPC分类号： H01L21/285 ,  H01L21/335 ,  H01L29/423 ,  H01L21/44

    CPC分类号： H01L29/66462 ,  H01L21/28587 ,  H01L29/42316 ,  Y10S148/10 ,  Y10S148/139 ,  Y10S438/951

    摘要： A method of producing a field effect transistor includes depositing a first insulating film and a refractory metal on a semiconductor substrate, forming a first aperture penetrating the first insulating film and the refractory metal film to provide a gate electrode production region, depositing a second insulating film on the refractory metal film, etching the second insulating film in a direction perpendicular to the surface of the substrate leaving portions of the second insulating film on opposite side walls of the first aperture to form a second aperture, defining a gate length, depositing a gate metal, and patterning the gate metal layer, the first insulating film, and the refractory metal film in a prescribed width to form a T-shaped gate structure. During etching the second insulating film, since the refractory metal film serves as a etch stopping layer, the first insulating film is not etched and its thickness remains as deposited. Therefore, the space between the over-hanging portion of the T-shaped gate electrode and the source electrode increases and the gate-to-source capacitance is reduced.

    摘要翻译： 制造场效应晶体管的方法包括在半导体衬底上沉积第一绝缘膜和难熔金属，形成穿透第一绝缘膜的第一孔和难熔金属膜以提供栅电极生产区，沉积第二绝缘膜 在所述难熔金属膜上，在垂直于所述基板的表面的方向上蚀刻所述第二绝缘膜，从而将所述第二绝缘膜的部分留在所述第一孔的相对侧壁上，以形成限定栅极长度的第二孔， 金属，并以规定的宽度图案化栅极金属层，第一绝缘膜和难熔金属膜，以形成T形栅极结构。 在蚀刻第二绝缘膜期间，由于难熔金属膜用作蚀刻停止层，所以第一绝缘膜不被蚀刻并且其厚度保持沉积。 因此，T形栅电极的过悬挂部分与源电极之间的空间增加，并且栅极 - 源极电容减小。

    DIGITAL CAMERA
    5.
    发明申请
    DIGITAL CAMERA 审中-公开
    数码相机

    公开(公告)号：US20060237626A1

    公开(公告)日：2006-10-26

    申请号：US11379248

    申请日：2006-04-19

    申请人： Masayuki Sakai ,  Kazuhisa Horikiri ,  Seimei Ushiro

    发明人： Masayuki Sakai ,  Kazuhisa Horikiri ,  Seimei Ushiro

    IPC分类号： H01L27/00

    CPC分类号： H04N5/23293

    摘要： A digital camera has a display screen that improves an external design of the digital camera. The display screen is disposed on a front surface of the digital camera, which surface faces a subject when an image-taking optical system is directed to the subject. The display screen is capable of displaying an image such as a design image or a clock image. The digital camera is also capable of automatically displaying a through image when detecting a subject distance being shorter than a predetermined distance, i.e. a self-portrait is going to be taken. The digital camera is also capable of displaying an image based on personal image data so that a user can enjoy its external design.

    摘要翻译： 数码相机具有改善数码相机外部设计的显示屏。 显示屏布置在数字照相机的前表面上，当摄像光学系统指向被摄体时，该表面面向被摄体。 显示屏能够显示诸如设计图像或时钟图像的图像。 当检测到距离短于预定距离的被摄体距离时，数字照相机也能够自动显示通过图像，即将要拍摄自画像。 数字照相机还能够基于个人图像数据显示图像，使得用户可以享受其外部设计。

    Process of making polyester pellets
    8.
    发明授权
    Process of making polyester pellets 失效
    制造聚酯粒料的方法

    公开(公告)号：US06613259B2

    公开(公告)日：2003-09-02

    申请号：US09765448

    申请日：2001-01-22

    申请人： Koji Takahashi ,  Koji Nakamachi ,  Hiroji Niimi ,  Shoji Hiraoka ,  Masayuki Sakai ,  Hitoshi Tsuboi

    发明人： Koji Takahashi ,  Koji Nakamachi ,  Hiroji Niimi ,  Shoji Hiraoka ,  Masayuki Sakai ,  Hitoshi Tsuboi

    IPC分类号： B29B906

    CPC分类号： C08G63/80 ,  C08G63/672

    摘要： A process for preparing polyester pellets which involves blending polyethylene terephthalate and polyethylene isophthalate copolymer before solid state polymerization, the polyethylene isophthalate copolymer being composed of dicarboxylic acid constituent units derived from dicarboxylic acids containing terephthalic acid and isophthalic acid and diol constituent units derived from diols containing ethylene glycol and 1,3-bis(2-hydroxyethoxy)benzene, palletizing the blend and crystallizing the pellets.

    摘要翻译： 一种制备聚酯颗粒的方法，其包括在固态聚合之前共混聚对苯二甲酸乙二醇酯和聚间苯二甲酸乙二醇酯共聚物，聚邻苯二甲酸乙二醇酯共聚物由衍生自含对苯二甲酸和间苯二甲酸的二羧酸的二羧酸构成单元和由含有乙烯的二醇衍生的二醇构成单元 乙二醇和1,3-双（2-羟基乙氧基）苯，将混合物堆垛并使颗粒结晶。

    Process for preparing polyhydroxycarboxylic acid
    9.
    发明授权
    Process for preparing polyhydroxycarboxylic acid 有权
    制备聚羟基羧酸的方法

    公开(公告)号：US06429280B1

    公开(公告)日：2002-08-06

    申请号：US09763242

    申请日：2001-02-20

    申请人： Shouji Hiraoka ,  Hitoshi Tsuboi ,  Masayuki Sakai

    发明人： Shouji Hiraoka ,  Hitoshi Tsuboi ,  Masayuki Sakai

    IPC分类号： C08G6308

    CPC分类号： C08G63/80 ,  B29B9/12 ,  B29B9/16 ,  B29K2995/0041 ,  C08G63/06 ,  C08G63/78

    摘要： A process for preparing a polyhydroxycarboxylic acid having a weight average molecular weight of 50,000 to 1,000,000, which comprises a crystallizing step comprising (A) a step of heating pellets of a polyhydroxycarboxylic acid having a weight average molecular weight of 2,000 to 100,000 under stirring to a temperature from glass transition point or higher to a melting point or lower and heating until a defined result is attained, and (B) a step of heating the polyhydroxycarboxylic acid to a temperature of solid phase polycondensation reaction temperature, and a solid phase polycondensation reaction step of reacting the crystallized polyhydroxycarboxylic acid at an endothermic start temperature or lower of an endothermic peak as recognized upon temperature elevation analysis of the crystallized polyhydroxycarboxylic acid by using a differential scanning calorimeter.

    摘要翻译： 一种制备重均分子量为50,000〜1,000,000的聚羟基羧酸的方法，其包括结晶步骤，其包括（A）在搅拌下将重均分子量为2,000至100,000的聚羟基羧酸的颗粒加热至 温度从玻璃化转变点以上到熔点以下，加热直到达到规定的结果，（B）将聚羟基羧酸加热到固相缩聚反应温度的步骤，和固相缩聚反应步骤 使结晶的聚羟基羧酸在吸热峰的吸热开始温度或更低的温度下反应，通过使用差示扫描量热计对结晶的聚羟基羧酸进行升温分析。