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34 条记录 (耗时 0.037 秒)

    Method for fabricating floating gate
    21.
    发明授权
    Method for fabricating floating gate 有权
    浮栅制造方法

    公开(公告)号：US06482728B2

    公开(公告)日：2002-11-19

    申请号：US10053792

    申请日：2002-01-18

    申请人： Kwang-Shik Shin ,  Sung-Nam Chang ,  Jae-Woo Kim

    发明人： Kwang-Shik Shin ,  Sung-Nam Chang ,  Jae-Woo Kim

    IPC分类号： H01L218247

    CPC分类号： H01L27/115 ,  H01L27/11521

    摘要： A method for fabricating a floating gate in a non-volatile memory device and a floating gate fabricated using the same are provided. A conductive layer having upper and lower portions is formed over a substrate with field regions formed therein. A hard mask layer is formed over the conductive layer. Next, a photoresist pattern is formed over the hard mask layer. The hard mask layer is etched to form a hard mask pattern, using the photoresist pattern as an etching mask. The upper portion of the conductive layer is slope-etched, leaving the lower portion of the conductive layer intact, using the photoresist pattern as an etching mask. The slope-etched upper portion of the conductive layer is again vertically etched and the lower portion of the conductive layer is concurrently slope-etched, using the hard pattern as an etching mask. With the present invention, a bridge between floating gates can be reduced, and field loss can be reduced during processing steps such as an ONO etching process.

    摘要翻译： 提供了一种在非易失性存储器件中制造浮动栅极的方法和使用其制造的浮动栅极。 具有上部和下部的导电层形成在其中形成有场区的衬底上。 在导电层上形成硬掩模层。 接下来，在硬掩模层上形成光致抗蚀剂图案。 蚀刻硬掩模层以形成硬掩模图案，使用光致抗蚀剂图案作为蚀刻掩模。 导电层的上部被斜蚀刻，使用光致抗蚀剂图案作为蚀刻掩模留下导电层的下部完整。 再次垂直蚀刻导电层的斜面蚀刻的上部，并且使用硬图案作为蚀刻掩模，同时对导电层的下部进行斜面蚀刻。 利用本发明，可以减少浮置栅极之间的桥，并且可以在诸如ONO蚀刻工艺的处理步骤期间减小场损耗。

    Process for preparing dimethylether from methanol
    25.
    发明申请
    Process for preparing dimethylether from methanol 审中-公开
    从甲醇制备二甲醚的方法

    公开(公告)号：US20060135823A1

    公开(公告)日：2006-06-22

    申请号：US10545595

    申请日：2003-04-10

    申请人： Ki-Won Jun ,  Hyun-Seog Roh ,  Kew-Ho Lee ,  Jae-Woo Kim

    发明人： Ki-Won Jun ,  Hyun-Seog Roh ,  Kew-Ho Lee ,  Jae-Woo Kim

    IPC分类号： C07C41/09

    CPC分类号： C07C41/09 ,  C07C43/043

    摘要： The present invention relates to a process for preparing dimethyl ether from methanol. More particularly, this invention relates to an improved process for preparing dimethyl ether with high yield useful as a clean fuel as well as a raw material in chemical industry performed via a catalytic system, wherein dehydration of methanol is first carried out by using a hydrophilic solid acid catalyst and then subsequent dehydration of methanol is carried out continuously by using a hydrophobic zeolite solid acid catalyst in the concurrent presence of unreacted methanol, dimethyl ether produced and water.

    摘要翻译： 本发明涉及由甲醇制备二甲醚的方法。 更具体地说，本发明涉及一种用于制备用作清洁燃料的高产率的二甲醚的改进方法以及通过催化体系进行化学工业的原料，其中甲醇的脱水首先通过使用亲水固体 然后在未反应的甲醇，生产的二甲醚和水的同时存在下使用疏水性沸石固体酸催化剂连续进行甲醇的脱水。

    Metallized nanotube polymer composite (MNPC) and methods for making same
    28.
    发明授权
    Metallized nanotube polymer composite (MNPC) and methods for making same 有权
    金属化纳米管聚合物复合材料（MNPC）及其制备方法

    公开(公告)号：US09550870B2

    公开(公告)日：2017-01-24

    申请号：US12313945

    申请日：2008-11-26

    申请人： Cheol Park ,  Joycelyn S. Harrison ,  Negin Nazem ,  Larry Taylor ,  Jin Ho Kang ,  Jae-Woo Kim ,  Godfrey Sauti ,  Peter T. Lillehei ,  Sharon E. Lowther

    发明人： Cheol Park ,  Joycelyn S. Harrison ,  Negin Nazem ,  Larry Taylor ,  Jin Ho Kang ,  Jae-Woo Kim ,  Godfrey Sauti ,  Peter T. Lillehei ,  Sharon E. Lowther

    IPC分类号： C08J7/02 ,  B29C70/88 ,  C08J3/20 ,  C08J7/06 ,  B29K105/16 ,  B82Y30/00

    CPC分类号： C08J7/02 ,  B29C70/882 ,  B29K2105/167 ,  B82Y30/00 ,  C08J3/203 ,  C08J7/06 ,  C08J2379/08 ,  Y02P20/544

    摘要： A novel method to develop highly conductive functional materials which can effectively shield various electromagnetic effects (EMEs) and harmful radiations. Metallized nanotube polymer composites (MNPC) are composed of a lightweight polymer matrix, superstrong nanotubes (NT), and functional nanoparticle inclusions. MNPC is prepared by supercritical fluid infusion of various metal precursors (Au, Pt, Fe, and Ni salts), incorporated simultaneously or sequentially, into a solid NT-polymer composite followed by thermal reduction. The infused metal precursor tends to diffuse toward the nanotube surface preferentially as well as the surfaces of the NT-polymer matrix, and is reduced to form nanometer-scale metal particles or metal coatings. The conductivity of the MNPC increases with the metallization, which provides better shielding capabilities against various EMEs and radiations by reflecting and absorbing EM waves more efficiently. Furthermore, the supercritical fluid infusion process aids to improve the toughness of the composite films significantly regardless of the existence of metal.

    摘要翻译： 一种开发高导电功能材料的新方法，可有效屏蔽各种电磁效应（EME）和有害辐射。 金属化纳米管聚合物复合材料（MNPC）由轻质聚合物基体，超细纳米管（NT）和功能性纳米粒子夹杂物组成。 MNPC通过将各种金属前体（Au，Pt，Fe和Ni盐）的超临界流体输注同时或依次并入固体NT-聚合物复合材料中，然后热还原制备。 注入的金属前体倾向于优先扩散到纳米管表面以及NT-聚合物基体的表面，并且被还原以形成纳米级金属颗粒或金属涂层。 MNPC的电导率随着金属化而增加，通过更有效地反射和吸收EM波，可以提供更好的屏蔽能力，抵抗各种EME和辐射。 此外，超临界流体浸渍工艺有助于显着地提高复合膜的韧性，而不管金属的存在。

    EPOXY RESIN COMPOSITION FOR NEUTRON SHIELDING, AND METHOD FOR PREPARING THE SAME
    29.
    发明申请
    EPOXY RESIN COMPOSITION FOR NEUTRON SHIELDING, AND METHOD FOR PREPARING THE SAME 有权
    用于中性屏蔽的环氧树脂组合物及其制备方法

    公开(公告)号：US20140312536A1

    公开(公告)日：2014-10-23

    申请号：US14117048

    申请日：2012-05-11

    申请人： Jae-Woo Kim ,  Ji-Heon Jun ,  Yeon-Joo Bae

    发明人： Jae-Woo Kim ,  Ji-Heon Jun ,  Yeon-Joo Bae

    IPC分类号： C08K3/38 ,  C08K3/22 ,  B29C35/02

    CPC分类号： C08K3/22 ,  B29C35/02 ,  C08G59/50 ,  C08J3/242 ,  C08J2363/00 ,  C08K3/08 ,  C08K3/38 ,  C08K9/04 ,  C08K2003/2224 ,  C08K2003/2227 ,  C08K2003/2234 ,  C08L63/00

    摘要： Provided is an epoxy resin composition including a nano-sized radioactive radiation shielding material which has superior shielding effects for against radiation, and to a method for preparing same. In particular, the method for preparing the epoxy resin composition for neutron shielding, includes the steps of: a step of mixing a boron compound powder for absorbing neutrons, optionally a high density metal powder for shielding from against gamma rays and a flame retardant powder, respectively separately or in combination, with an amine-based curing agent to obtain a mixture of a curing agent and a powder; an ultrasonic wave treating step of applying ultrasonic waves to the mixture to coat the surface of the powder with the amine-based curing agent and to disperse the powder in the curing agent; and a dispersing step of mixing and dispersing the amine-based curing agent, that was dispersed and includes the powder treated with ultrasonic waves, in an epoxy resin.

    摘要翻译： 本发明提供一种环氧树脂组合物及其制备方法，该组合物包含具有优异的防辐射效果的纳米级放射线防护材料。 特别地，制备中子屏蔽用环氧树脂组合物的方法包括以下步骤：将用于吸收中子的硼化合物粉末，任选的高密度金属粉末与防止γ射线和阻燃粉末混合的步骤， 分别地或组合地与胺类固化剂混合以获得固化剂和粉末的混合物; 超声波处理工序，向所述混合物施加超声波，用所述胺类固化剂涂布所述粉末的表面，并将所述粉末分散在所述固化剂中; 以及将分散并包含用超声波处理的粉末的胺系固化剂混合分散在环氧树脂中的分散工序。

    Field emission X-ray tube and method of operating the same
    30.
    发明授权
    Field emission X-ray tube and method of operating the same 有权
    场发射X射线管及其操作方法

    公开(公告)号：US08761343B2

    公开(公告)日：2014-06-24

    申请号：US13315954

    申请日：2011-12-09

    申请人： Jin Woo Jeong ,  Yoon-Ho Song ,  Juntae Kang ,  Jae-Woo Kim

    发明人： Jin Woo Jeong ,  Yoon-Ho Song ,  Juntae Kang ,  Jae-Woo Kim

    IPC分类号： H01J35/14 ,  H01J35/06 ,  H01J35/00

    CPC分类号： H01J35/14 ,  B82Y10/00 ,  H01J35/065

    摘要： Provided is a field emission X-ray tube. The field emission X-ray tube includes a cathode electrode provided to one end of a vacuum vessel and including a field emission emitter, an anode electrode provided to the other end of the vacuum vessel in an extending direction of the vacuum vessel, and a gate electrode provided on an outer surface of the vacuum vessel adjacent to the cathode electrode.

    摘要翻译： 提供场发射X射线管。 场发射X射线管包括设置在真空容器的一端并包括场致发射体的阴极，在真空容器的延伸方向上设置在真空容器的另一端的阳极，以及栅极 设置在与阴极相邻的真空容器的外表面上的电极。