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    • 3. 发明授权
    • Semiconductor accelerometer
    • 半导体加速度计
    • US5504356A
    • 1996-04-02
    • US152505
    • 1993-11-16
    • Yukihiro TakeuchiToshimasa YamamotoYoshinori OhtsukaShigeyuki AkitaTadashi HattoriKazuhiko KanouHirotane Ikeda
    • Yukihiro TakeuchiToshimasa YamamotoYoshinori OhtsukaShigeyuki AkitaTadashi HattoriKazuhiko KanouHirotane Ikeda
    • G01P15/08G01P15/12H01L29/78H01L29/84
    • G01P15/124G01P15/0802
    • This invention aims at providing a novel semiconductor accelerometer comprising a smaller number of substrates and a production method thereof.An insulating film is formed on a main plane of a P-type silicon substrate, and a beam-like movable electrode is formed on the insulating film. Fixed electrodes are then formed on both sides of the movable electrode in self-alignment with the movable electrode by diffusing an impurity into the P-type silicon substrate, and the insulating film below the movable electrode is etched and removed. There is thus produced a semiconductor accelerometer comprising the P-type silicon substrate 1, the movable electrode 4 having the beam structure and disposed above the P-type silicon substrate 1 with a predetermined gap between them, and the fixed electrodes 8, 9 consisting of the impurity diffusion layer and formed on both sides of the movable electrode 4 on the P-type silicon substrate 1 in self-alignment with the movable electrode 4. This sensor can detect acceleration from the change (increase/decrease) of a current between the fixed electrodes 8 and 9 resulting from the displacement of the movable electrode 4 due to acceleration.
    • 本发明的目的在于提供一种新型的半导体加速度计,其包括较少数量的基板及其制造方法。 在P型硅基板的主平面上形成绝缘膜,在绝缘膜上形成有束状的可动电极。 然后通过将杂质扩散到P型硅衬底中,在可动电极的两侧与可动电极自对准地形成固定电极,蚀刻除去可动电极下面的绝缘膜。 因此,制造了包括P型硅衬底1,具有光束结构的可动电极4并且在它们之间具有预定间隙并且设置在P型硅衬底1上方的固定电极8,9的半导体加速度计, 该杂质扩散层形成在与可动电极4自对准的P型硅衬底1上的可动电极4的两侧。该传感器可以从电流的变化(增加/减少) 固定电极8和9由于加速而由可动电极4的位移而产生。
    • 6. 发明授权
    • Rubber composition for tire tread
    • 轮胎胎面橡胶组合物
    • US5587417A
    • 1996-12-24
    • US403720
    • 1995-03-14
    • Shinsuke NakaneKazuhiko KanouTakatsugu Hashimoto
    • Shinsuke NakaneKazuhiko KanouTakatsugu Hashimoto
    • B60C1/00C08K3/04C08K5/09C08L7/00C08L9/00C08K3/00
    • C08K3/04B60C1/0016C08K5/09
    • A rubber composition for a tire tread which is provided by the present invention can be obtained by blending 100 parts by weight of a natural rubber and/or a diene synthetic rubber with40 to 100 parts by weight of a carbon black having characteristic values of a cetyltriammonium bromide adsorption specific surface area (CTAB) being 90 to 220 m.sup.2 /g and a 24M4DBP absorption value being 90 to 140 ml/100 g, and0.1 to 20 parts by weight of an organic unsaturated fatty acid having two or more carbon double bonds in its molecule which includes 10% by weight or more of a conjugated diene acid having at least one pair of two carbon double bonds in a conjugated relation in its molecule.This rubber composition for a tire tread can be suitably used for a pneumatic tire, particularly a pneumatic tire for heavy load having an excellent wear resistance.
    • PCT No.PCT / JP93 / 00971 Sec。 371日期:1995年3月14日 102(e)1995年3月14日PCT PCT 1993年7月14日PCT公布。 出版物WO93 / 日本特开1993年10月14日由本发明提供的轮胎胎面用橡胶组合物可以通过将100重量份的天然橡胶和/或二烯合成橡胶与40〜100重量份的炭黑 十六烷基三甲基溴化铵吸附比表面积(CTAB)的特征值为90〜220m2 / g,24M4DBP吸收值为90〜140ml / 100g,0.1〜20重量份具有2个 或更多的碳双键,其包含10重量%以上的分子中具有共轭关系的至少一对双碳双键的共轭二烯酸。 用于轮胎胎面的这种橡胶组合物可以适用于充气轮胎,特别是具有优异耐磨性的重载充气轮胎。