公开(公告)号：US06705160B2

公开(公告)日：2004-03-16

申请号：US10197474

申请日：2002-07-18

申请人： Takao Iwaki ,  Toshimasa Yamamoto ,  Hiroyuki Wado

发明人： Takao Iwaki ,  Toshimasa Yamamoto ,  Hiroyuki Wado

IPC分类号： G01F168

CPC分类号： G01F1/692

摘要： A thin-film type flow sensor having a thin-film part in which a plurality of patterned resistor films are sandwiched between a pair of insulator films. The resistance ratios among the resistor films are minimized from one sensor to another made from the same wafer. The flow sensor has a lower insulator film, the resistor films, and an upper film laminated in succession on a substrate. The resistor films include a patterned fluid thermometer, a temperature detector, and a heater. The heater has a wiring configuration in which resistor elements are connected in a parallel manner. The wiring widths of the heater and the thermometer can thus be made identical, so that the resistance ratios become invariant over the wafer surface, irrespective of a disparity in etching variations.

摘要翻译： 一种薄膜型流量传感器，其具有多个图案化的电阻膜夹在一对绝缘膜之间的薄膜部分。 电阻膜之间的电阻比从一个传感器到另一个由相同晶片制成的电阻比最小化。 流量传感器具有下层绝缘膜，电阻膜和在基片上连续层压的上层膜。 电阻膜包括图案化流体温度计，温度检测器和加热器。 加热器具有其中电阻元件以并联方式连接的布线配置。 因此，加热器和温度计的布线宽度可以相同，使得电阻比在晶片表面上变得不变，而不管蚀刻变化的不同。

公开(公告)号：US06983653B2

公开(公告)日：2006-01-10

申请号：US10731094

申请日：2003-12-10

申请人： Takao Iwaki ,  Hiroyuki Wado ,  Toshimasa Yamamoto ,  Kiyokazu Isomura ,  Tomoyuki Mizutani ,  Akihiko Teshigahara ,  Ryuuichirou Abe

发明人： Takao Iwaki ,  Hiroyuki Wado ,  Toshimasa Yamamoto ,  Kiyokazu Isomura ,  Tomoyuki Mizutani ,  Akihiko Teshigahara ,  Ryuuichirou Abe

IPC分类号： G01F1/68

CPC分类号： G01F1/692

摘要： A flow sensor for detecting flow of fluid includes a thin film portion. The thin film portion has a heater and a detector for detecting temperature around the heater. The heater is made of semiconductor. This flow sensor has high sensor sensitivity with low energy consumption. Further, the sensor has high detection accuracy, and the thin film portion has high endurance. Furthermore, the flow sensor with a passivation film has appropriate thickness so as to improve strength of a thin film portion.

摘要翻译： 用于检测流体流动的流量传感器包括薄膜部分。 薄膜部分具有用于检测加热器周围温度的加热器和检测器。 加热器由半导体制成。 该流量传感器具有高传感器灵敏度，低能耗。 此外，传感器具有高检测精度，薄膜部分具有高耐久性。 此外，具有钝化膜的流量传感器具有适当的厚度，以便提高薄膜部分的强度。

公开(公告)号：US06701782B2

公开(公告)日：2004-03-09

申请号：US10199116

申请日：2002-07-22

申请人： Takao Iwaki ,  Toshimasa Yamamoto ,  Hiroyuki Wado ,  Yukihiro Takeuchi

发明人： Takao Iwaki ,  Toshimasa Yamamoto ,  Hiroyuki Wado ,  Yukihiro Takeuchi

IPC分类号： G01F168

CPC分类号： G01F1/692

摘要： A flow sensor, which includes a diaphragm, is made such that the diaphragm is flat or outwardly deformed to allow fluid flow rate measurements at higher flow rates. The diaphragm is made of an upper set of insulating films, electric devices, and a lower set of insulating films. The component layers of the diaphragm are formed such that the average stress in the upper set of insulating films is more compressive than the average stress in the lower set of insulating films.

摘要翻译： 包括隔膜的流量传感器被制成使得隔膜是平坦的或向外变形的，以允许在较高流速下进行流体流速测量。 隔膜由上一组绝缘膜，电气设备和下一组绝缘膜制成。 隔膜的部件层形成为使得上部绝缘膜中的平均应力比下部绝缘膜中的平均应力更大的压缩。

公开(公告)号：US06768291B2

公开(公告)日：2004-07-27

申请号：US10107443

申请日：2002-03-28

申请人： Toshiki Isogai ,  Yasushi Kohno ,  Toshimasa Yamamoto ,  Hiroyuki Wado

发明人： Toshiki Isogai ,  Yasushi Kohno ,  Toshimasa Yamamoto ,  Hiroyuki Wado

IPC分类号： G01N2700

CPC分类号： G01F1/6845

摘要： In a sensor chip for a fluid flow sensor, a thin film portion is formed above a hollow cavity portion while leaving thin film layers formed on the surface of a substrate. A conductor is provided on the inner wall face of a through hole formed to penetrate the substrate to thereby electrically connect a detecting portion constituted by a conductor film in the thin film layers and a substrate conductor portion formed on the rear face side of the through hole. The surface of a circuit board is formed with a control circuit and a base conductor portion electrically connected to the control circuit. The sensor chip and the circuit board are layered and the substrate conductor portion and the base conductor portion are electrically connected.

摘要翻译： 在用于流体流量传感器的传感器芯片中，在中空空腔部分的上方形成薄膜部分，同时留下形成在基板表面上的薄膜层。 在形成为穿透基板的通孔的内壁面上设置有导体，由此将由薄膜层中的导体膜构成的检测部和形成在通孔的背面侧的基板导体部电连接 。 电路板的表面形成有电连接到控制电路的控制电路和基底导体部分。 传感器芯片和电路板被层叠，并且基板导体部分和基底导体部分电连接。

公开(公告)号：US20110227040A1

公开(公告)日：2011-09-22

申请号：US13043842

申请日：2011-03-09

申请人： Takao IWAKI ,  Hiroyuki Wado ,  Yukihiro Takeuchi

发明人： Takao IWAKI ,  Hiroyuki Wado ,  Yukihiro Takeuchi

IPC分类号： H01L29/66 ,  H01L21/02

CPC分类号： G01K7/226 ,  G01K7/223

摘要： A temperature sensor includes a semiconductor substrate and a quantum well structural part disposed on the semiconductor substrate. The semiconductor substrate is made of a plurality of elements. The quantum well structural part has a resistance value that changes with temperature. The quantum well structural part includes a plurality of semiconductor layers made of the elements. The semiconductor layers include a plurality of quantum barrier layers and a quantum well layer disposed between the quantum barrier layers. When the semiconductor substrate has a lattice constant “a,” each of the quantum barrier layers has a lattice constant “b,” and the quantum well layer has a lattice constant “c,” the semiconductor substrate, the quantum barrier layers, and the quantum well layer satisfy a relationship of b

摘要翻译： 温度传感器包括半导体衬底和设置在半导体衬底上的量子阱结构部分。 半导体衬底由多个元件制成。 量子阱结构部分具有随温度变化的电阻值。 量子阱结构部分包括由元件制成的多个半导体层。 半导体层包括多个量子势垒层和设置在量子势垒层之间的量子阱层。 当半导体衬底具有晶格常数“a”时，每个量子势垒层具有晶格常数“b”，并且量子阱层具有晶格常数“c”，半导体衬底，量子势垒层和 量子阱层满足b

公开(公告)号：US06938473B2

公开(公告)日：2005-09-06

申请号：US10298230

申请日：2002-11-18

申请人： Takao Iwaki ,  Toshiyuki Morishita ,  Yasushi Kohno ,  Hiroyuki Wado ,  Yasushi Goka ,  Makoto Tsunekawa ,  Toshirou Gotou ,  Kiyoyuki Sugiura

发明人： Takao Iwaki ,  Toshiyuki Morishita ,  Yasushi Kohno ,  Hiroyuki Wado ,  Yasushi Goka ,  Makoto Tsunekawa ,  Toshirou Gotou ,  Kiyoyuki Sugiura

IPC分类号： G01F1/684 ,  G01F1/68

CPC分类号： G01F1/6842

摘要： An airflow meter has a membrane type sensor element. The sensor element is supported on a support member so that a sensing surface of the sensor element is in parallel to the airflow direction. The airflow meter has at least one means for protecting the sensor element from dust such as foreign particles. The protecting means is provided with an obstruction member that is disposed upstream or downstream of the sensor element with respect to the airflow direction. The sensor element is hidden behind the obstruction member. The obstruction member has gradually spreading surfaces and gradually converging surfaces along the airflow direction. Alternatively, the protecting means can be provided with a deflector, a cover member, a flow guide member, an inlet or a dust collector.

摘要翻译： 气流计具有膜式传感器元件。 传感器元件支撑在支撑构件上，使得传感器元件的感测表面平行于气流方向。 气流计具有至少一种用于保护传感器元件免受诸如外来颗粒的灰尘的装置。 保护装置设置有相对于气流方向设置在传感器元件的上游或下游的阻塞构件。 传感器元件隐藏在阻塞构件后面。 阻塞构件具有逐渐扩散的表面并沿着气流方向逐渐收敛表面。 或者，保护装置可以设置有偏转器，盖构件，导流构件，入口或集尘器。

公开(公告)号：US06698283B2

公开(公告)日：2004-03-02

申请号：US10195564

申请日：2002-07-16

申请人： Hiroyuki Wado ,  Takao Iwaki

发明人： Hiroyuki Wado ,  Takao Iwaki

IPC分类号： G01F168

CPC分类号： G01F1/6845

摘要： A flow sensor includes a substrate in which a cavity is formed. A thin film structure is located above the cavity. The thin film structure includes a patterned multilayer film. A dummy film layer is formed or a number of dummy film layers are formed in close proximity to the patterned multilayer film to protect the multilayer film from the effect of reduction gas.

摘要翻译： 流量传感器包括其中形成空腔的基板。 薄膜结构位于空腔上方。 薄膜结构包括图案化多层膜。 形成虚拟膜层，或者在图案化的多层膜附近形成多个虚设膜层，以保护多层膜免受还原气体的影响。

公开(公告)号：US20110019202A1

公开(公告)日：2011-01-27

申请号：US12805225

申请日：2010-07-20

申请人： Takao Iwaki ,  Hiroyuki Wado

发明人： Takao Iwaki ,  Hiroyuki Wado

IPC分类号： G01B9/02

CPC分类号： G02B26/001 ,  G01J3/26

摘要： A Fabry-Perot interferometer and a manufacturing method of the same are disclosed. The Fabry-Perot interferometer includes a first mirror structure and a second mirror structure opposed to each other with a gap therebetween. A first mirror and a first electrode of the first mirror structure are electrically insulated from each other, or, a second mirror and a second electrode of the second mirror structure are electrically insulated from each other. In a state of voltage application between the first and second electrode, a distance “dmi” between the first mirror and the second mirror is shorter than a distance “dei” between a first-electrode-inclusive-portion and a second-electrode-inclusive-portion.

摘要翻译： 公开了一种法布里 - 珀罗干涉仪及其制造方法。 法布里 - 珀罗干涉仪包括彼此相对并且间隔开的第一反射镜结构和第二反射镜结构。 第一反射镜结构的第一反射镜和第一电极彼此电绝缘，或者第二反射镜结构的第二反射镜和第二电极彼此电绝缘。 在第一和第二电极之间的施加电压的状态下，第一反射镜和第二反射镜之间的距离“dmi”比第一电极包含部分和第二电极之间的距离“dei”短 -一部分。

公开(公告)号：US20060194332A1

公开(公告)日：2006-08-31

申请号：US11410093

申请日：2006-04-25

申请人： Hiroyuki Wado ,  Makiko Sugiura ,  Yukihiro Takeuchi ,  Takao Iwaki

发明人： Hiroyuki Wado ,  Makiko Sugiura ,  Yukihiro Takeuchi ,  Takao Iwaki

IPC分类号： G01N33/00

CPC分类号： G01N27/124

摘要： A more reliable gas sensor includes a support film formed on a surface of a substrate and a heater electrode. Surrounding the heater electrode is a heater electrical insulation layer 4. Detection electrodes are formed above the electrical insulation layer. A flat insulating layer is formed over the heater insulation layer, and surfaces of the detection electrodes are exposed and flush with the upper surface of the flat insulating layer. A sensitive film is formed above the flat insulating layer in contact with the surfaces of the detection electrodes. A hollow cavity is formed in the substrate.

摘要翻译： 更可靠的气体传感器包括形成在基板的表面上的支撑膜和加热器电极。 加热器电极周围是加热器电绝缘层4。 检测电极形成在电绝缘层的上方。 在加热器绝缘层之上形成平坦的绝缘层，并且检测电极的表面暴露并与平坦绝缘层的上表面齐平。 敏感膜形成在与检测电极的表面接触的平坦绝缘层的上方。 在基板中形成中空腔。

公开(公告)号：US06694811B2

公开(公告)日：2004-02-24

申请号：US10379938

申请日：2003-03-06

申请人： Yasushi Kohno ,  Toshimasa Yamamoto ,  Hiroyuki Wado ,  Tetsuo Yoshioka

发明人： Yasushi Kohno ,  Toshimasa Yamamoto ,  Hiroyuki Wado ,  Tetsuo Yoshioka

IPC分类号： G01F168

CPC分类号： G01F1/6842

摘要： A flow meter is formed with a passage for introducing and carrying air to measure and has a sensing part disposed in the passage for measuring a flow rate of the air. A contraction part is formed on an inner surface of the passage so that the contraction part faces the sensing part. The contraction part narrows the flow of the air flowing near the sensing part. A flat surface of the contraction part is formed in parallel with the surface of the sensing part and at least upstream of the sensing part. Thus, collision of particles against the sensing part and adhesion of contaminants to the sensing pert are inhibited. Meanwhile, the flow rate of the air is measured stably and accurately.

摘要翻译： 流量计形成有用于引入和携带空气进行测量的通道，并且具有设置在通道中的用于测量空气流量的感测部分。 收缩部分形成在通道的内表面上，使得收缩部分面向感测部分。 收缩部分使感应部分附近的空气流动变窄。 收缩部分的平坦表面形成为与感测部分的表面平行并且至少在感测部分的上游。 因此，抑制了颗粒与传感部分的碰撞以及污染物与传感污染物的粘附。 同时，稳定且准确地测量空气的流量。