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    • 2. 发明授权
    • Rotation rate sensor
    • 转速传感器
    • US6094985A
    • 2000-08-01
    • US308730
    • 1999-05-24
    • Hergen KapelsChristofer HieroldMax StegerThomas ScheiterReinhold NoeUlrich Naher
    • Hergen KapelsChristofer HieroldMax StegerThomas ScheiterReinhold NoeUlrich Naher
    • G01C9/04G01C19/56G01P9/04
    • G01C19/5712
    • Rotation rate sensor as a micromechanical component in silicon, in which a ring with a rigid strut along a diameter is so suspended at elastic braces and anchoring arrangements on a substrate as to be able to perform rotation oscillations about its center axis and to be able to be tilted about the strut under the influence of outer torques. There are electrodes present at the ring and at the substrate, at which electrodes electrical voltages can be applied such that rotary oscillations of the ring about its center axis can be excited and rotary oscillations about the strut can be detected. To stabilize the position of the ring in the neutral position, additional electrodes can be provided at the ring and at the substrate for the generation of electrostatic forces.
    • PCT No.PCT / DE97 / 02671 Sec。 371日期1999年5月24日 102(e)1999年5月24日PCT 1997年11月14日PCT PCT。 第WO98 / 23917号公报 日期1998年6月4日作为硅中的微机械部件的转速传感器,其中沿着直径的刚性支柱的环悬挂在基板上的弹性支架和锚定装置上,以便能够围绕其中心轴线执行旋转振荡 并且能够在外部扭矩的影响下围绕支柱倾斜。 存在于环和基板处的电极,电极可以施加电压,使得环绕其中心轴的旋转振荡可被激发,并且可以检测到围绕支柱的旋转振荡。 为了稳定环在中性位置的位置,可以在环和基板处设置附加电极以产生静电力。
    • 4. 发明授权
    • Method for the selective removal of silicon dioxide
    • 选择性去除二氧化硅的方法
    • US5662772A
    • 1997-09-02
    • US637237
    • 1996-04-24
    • Thomas ScheiterUlrich NaeherChristofer Hierold
    • Thomas ScheiterUlrich NaeherChristofer Hierold
    • C23F1/02C23F1/12H01L21/302H01L21/3065H01L21/31H01L21/311H01L21/00C03C15/00
    • H01L21/31116Y10S438/935
    • In a method for the selective removal of SiO.sub.2 relative to semiconductor materials and/or metal, a specimen to be processed and containing SiO.sub.2 is placed into a chamber having at least one gas admission opening and one gas outlet opening. Using controllable valves at the gas admission opening, dosed quantities of hydrogen fluoride gas and water vapor are admitted into the chamber. These gasses proceed to the SiO.sub.2 in a specimen in a quantity adequate for etching. However, the quantities of these gasses are limited such that a condensation of the water vapor to form liquid water on the specimen during the etching event is avoided. An etching event is then implemented. Water vapor that arises as a reaction product during the etching is eliminated through the gas outlet opening before the occurrence of condensation and, simultaneously, an inert gas is admitted into the chamber through the gas admission opening. These steps are repeated as needed.
    • 在相对于半导体材料和/或金属选择性去除SiO 2的方法中,将待处理并含有SiO 2的样品置于具有至少一个气体入口和一个气体出口的腔室中。 在气体入口处使用可控阀门,加入量的氟化氢气体和水蒸气进入腔室。 这些气体以足以蚀刻的量前进到样品中的SiO 2。 然而,这些气体的量受到限制,从而避免了在蚀刻事件期间水蒸气在样品上形成液态水的冷凝。 然后实施蚀刻事件。 在蚀刻期间作为反应产物产生的水蒸气在发生冷凝之前通过气体出口开口消除,同时惰性气体通过气体入口进入腔室。 根据需要重复这些步骤。
    • 10. 发明授权
    • Capacitively measuring sensor and readout circuit
    • 电容式测量传感器和读出电路
    • US5974895A
    • 1999-11-02
    • US880651
    • 1997-06-23
    • Max StegerThomas ScheiterChristofer HieroldReinhold Noe
    • Max StegerThomas ScheiterChristofer HieroldReinhold Noe
    • G01L1/14G01D5/24G01L9/00G01L9/12G01P15/125G01R17/10G01R27/26G01B7/16
    • G01D5/24G01L9/12G01P15/125G01R27/2605
    • A capacitance to be measured is connected together with three further capacitances to form a bridge circuit, in which each two of the capacitors are connected in series, and these two series circuits are connected in parallel to one another, and which replaces a part of the input stage of a .SIGMA.-.DELTA. modulator. As inputs of this bridge circuit, terminals are provided at the ends of these series circuits, and as outputs terminals are respectively provided between the capacitors connected one after the other in series. In a sensor realized thereby, two capacitively measuring sensor elements of the same type are used. These capacitors are built into the bridge circuit together with two equally large reference capacitors in such a way that exactly one measurement capacitor and one reference capacitor is La connected is connected to each input and to each output of the bridge circuit.
    • 要测量的电容与三个另外的电容连接在一起形成桥接电路,其中每两个电容器串联连接,并且这两个串联电路彼此并联连接,并且其中的一部分 SIGMA-DELTA调制器的输入级。 作为该桥式电路的输入端子,在这些串联电路的端部设置有端子,在串联连接的电容器之间分别设置有输出端子。 在由此实现的传感器中,使用相同类型的两个电容测量传感器元件。 这些电容器与两个同样大的参考电容器一起内置在桥式电路中,使得一个测量电容器和一个参考电容器La连接到桥接电路的每个输入和每个输出。