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    • 83. 发明申请
    • CMOS AND MOS DEVICE
    • CMOS和MOS器件
    • US20070111420A1
    • 2007-05-17
    • US11309204
    • 2006-07-13
    • Pei-Yu ChouMin-Chieh YangWen-Han Hung
    • Pei-Yu ChouMin-Chieh YangWen-Han Hung
    • H01L21/8238H01L29/80
    • H01L21/823864H01L21/823807H01L29/7833H01L29/7843
    • A complementary metal-oxide-semiconductor (CMOS) device comprising a substrate, a first type of metal-oxide-semiconductor (MOS) transistor, a second type of MOS transistor, an etching stop layer, a first stress layer and a second stress layer is provided. The substrate has a first active region and a second active region. The first active region is isolated from the second active region through an isolation structure. The first type of MOS transistor is disposed in the first active region of the substrate; the second type of MOS transistor is disposed in the second active region of the substrate. The etching stop layer covers conformably the first type of MOS transistor, the second type of MOS transistor and the isolation structure. The first stress layer is disposed on the etching stop layer in the first active region and the second stress layer is disposed on the etching stop layer in the second active region.
    • 一种互补金属氧化物半导体(CMOS)器件,包括衬底,第一类型的金属氧化物半导体(MOS)晶体管,第二类型的MOS晶体管,蚀刻停止层,第一应力层和第二应力层 被提供。 衬底具有第一有源区和第二有源区。 第一有源区通过隔离结构与第二有源区隔离。 第一类型的MOS晶体管设置在基板的第一有源区中; 第二类型的MOS晶体管设置在衬底的第二有源区中。 蚀刻停止层适合地覆盖第一类型的MOS晶体管,第二类型的MOS晶体管和隔离结构。 第一应力层设置在第一有源区中的蚀刻停止层上,第二应力层设置在第二有源区中的蚀刻停止层上。
    • 84. 发明授权
    • Liquid phase deposition method for growing a titanium dioxide on a
gallium arsenide substrate
    • 用于在砷化镓衬底上生长二氧化钛的液相沉积方法
    • US6153539A
    • 2000-11-28
    • US265974
    • 1999-03-11
    • Ming-Kwei LeeWen-Han Hung
    • Ming-Kwei LeeWen-Han Hung
    • C23C18/00H01L21/316H01L21/324
    • H01L21/316C23C18/00
    • A liquid phase deposition method for growing a titanium dioxide on the gallium arsenide substrate is disclosed. Wherein the solution of hexafluorotitanic acid (H.sub.2 TiF.sub.6) is added with nitric acid (HNO.sub.3) and boric acid (H.sub.3 BO.sub.3) or only added with a nitric acid. Thus a titanium dioxide film is grown on the gallium arsenide substrate which is the most important material of semiconductor. The refractive index will achieve to a value of 2.5. The growth rate can be exactly controlled by the concentration of the nitric acid. The present invention has the advantages of lower cost and low growing temperature. Not only the industrial necessity is satisfied, but also the disadvantages from other growing process having a high cost and expensive equipment is avoided. Thus, the present invention is potentially used in the process of integrated circuits, such as being used in the memory structure with a higher dielectric constant.Moreover, since the titanium dioxide has special photoelectric properties, which can be employed in the waveguides, optic filters, antireflecting coatings and other semiconductor elements of photoelectric compounds. From the experimental result, it is appreciated that the liquid phase deposition method for growing a titanium dioxide on the gallium arsenide substrate of the present invention is useful in many applications.
    • 公开了一种用于在砷化镓衬底上生长二氧化钛的液相沉积方法。 其中六氟钛酸(H 2 TiF 6)的溶液中加入硝酸(HNO3)和硼酸(H3BO3)或仅加入硝酸。 因此,在作为半导体最重要的材料的砷化镓衬底上生长二氧化钛膜。 折射率将达到2.5。 生长速度可以通过硝酸的浓度来精确控制。 本发明具有成本低,生长温度低的优点。 不仅满足了工业的需要,而且避免了具有高成本和昂贵的设备的其他生长工艺的缺点。 因此,本发明潜在地用于集成电路的过程中,例如用于具有较高介电常数的存储器结构中。 此外,由于二氧化钛具有特殊的光电特性,其可用于光电化合物的波导,光学滤波器,抗反射涂层和其它半导体元件。 从实验结果可以看出,用于在本发明的砷化镓衬底上生长二氧化钛的液相沉积方法在许多应用中是有用的。