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    • 3. 发明授权
    • Method of fabricating semiconductor device including a recessed channel
    • 制造包括凹陷通道的半导体器件的方法
    • US08835257B2
    • 2014-09-16
    • US13312176
    • 2011-12-06
    • Young-Pil KimHyung-Ik LeeWoo-Sung JeonKi-Hong KimJung-Yun WonIn-Sun Jung
    • Young-Pil KimHyung-Ik LeeWoo-Sung JeonKi-Hong KimJung-Yun WonIn-Sun Jung
    • H01L21/762H01L27/105H01L27/108
    • H01L27/1052H01L21/76224H01L27/10876
    • A method including forming an isolation trench; forming first and second liners on the isolation trench; filling the isolation trench an insulating material to form an isolation region and an active region; forming a preliminary gate trench including a first region across the isolation region to expose the first liner, the second liner, and the insulating material, and a second region across the active region to expose a portion of the substrate, the first region having a first sidewall with a planar shape, and the second region having a second sidewall with a concave central area such that an interface between the first and second regions has a pointed portion; removing a portion of the first liner exposed by the first region to form a dent having a first depth by which the pointed portion protrudes; removing the pointed portion to form a gate trench; and forming a gate electrode.
    • 一种包括形成隔离沟槽的方法; 在隔离槽上形成第一和第二衬垫; 将绝缘沟槽填充绝缘材料以形成隔离区域和有源区域; 形成包括隔离区域的第一区域的初步栅极沟槽,以露出第一衬垫,第二衬垫和绝缘材料,以及横跨有源区域的第二区域以暴露衬底的一部分,第一区域具有第一 侧壁具有平面形状,并且所述第二区域具有第二侧壁,所述第二侧壁具有凹形中心区域,使得所述第一和第二区域之间的界面具有尖锐部分; 去除由所述第一区域暴露的所述第一衬垫的一部分以形成具有所述尖部突出的第一深度的凹陷; 去除尖部以形成栅沟; 并形成栅电极。
    • 4. 发明授权
    • Polybenzoxazine-based compound, electrolyte membrane including the same, and fuel cell employing the electrolyte membrane
    • 聚苯并恶嗪类化合物,包含它们的电解质膜和使用电解质膜的燃料电池
    • US08034508B2
    • 2011-10-11
    • US11514254
    • 2006-09-01
    • Seong-woo ChoiHee-young SunMyung-jin LeeWoo-sung Jeon
    • Seong-woo ChoiHee-young SunMyung-jin LeeWoo-sung Jeon
    • H01M8/10C08G73/06
    • C08G73/06C08G73/18H01M4/921H01M8/0234H01M8/1004H01M8/1027H01M8/103H01M8/1032H01M8/1048H01M8/1072Y02P70/56Y10T156/10
    • A crosslinked object of a polybenzoxazine-based compound formed of a polymerized resultant of a first monofunctional benzoxazine-based monomer or a second multifunctional benzoxazine-based monomer with a crosslinkable compound, an electrolyte membrane including the crosslinked object, a method of preparing the electrolyte membrane, and a fuel cell employing the electrolyte membrane including the crosslinked object. The crosslinked object has a strong acid trapping capability with respect to the benzoxazine-based compound and high mechanical properties due to the crosslinking. The crosslinked object is very stable chemically because of elimination of solubility in polyphosphoric acid. The electrolyte membrane including the crosslinked object has excellent phosphoric acid supplementing capacity at a high temperature and mechanical and chemical stability. Specifically, even when an impregnated amount of a proton carrier, such as phosphoric acid, is increased to increase proton conductivity, the electrolyte membrane maintains excellent mechanical and chemical stability. Accordingly, the electrolyte membrane can be used in a fuel cell for high temperature and no humidity.
    • 由第一单官能苯并恶嗪类单体或第二多官能苯并恶嗪类单体与可交联化合物的聚合产物形成的聚苯并恶嗪系化合物的交联物,包含交联物的电解质膜,制备电解质膜的方法 以及使用包含交联物的电解质膜的燃料电池。 交联物质相对于苯并恶嗪类化合物具有强的酸捕获能力,并且由于交联而具有高机械性能。 由于消除了在多磷酸中的溶解度,交联物质在化学上非常稳定。 包括交联物质的电解质膜在高温下具有优异的磷酸补充能力和机械和化学稳定性。 具体地说,即使提高磷酸等质子载体的浸渍量而使质子传导性提高,电解质膜也保持良好的机械和化学稳定性。 因此,电解质膜可以用于高温,无湿度的燃料电池。