公开(公告)号：WO1999026051A3

公开(公告)日：1999-05-27

申请号：PCT/US1998/021931

申请日：1998-10-20

Applicant: MOTOROLA INC.

Inventor： YOUNG, Daniel, A. ,  MOYA, Adam ,  KORIPELLA, Chowdary, R. ,  NABER, Jeffrey ,  ADAMS, Neil ,  MILLER, Adam ,  MARKYVECH, Craig

IPC: G01N27/26

Abstract: A calorimetric hydrocarbon gas sensor (10) includes an electrochemical oxygen pump (18), a sensing element (12), and a multi-layered substrate (26) separating the sensing element (12) from the electrochemical oxygen pump (18). The multi-layered substrate (26) includes a plurality of overlying insulating layers, in which at least one intermediate layer (60) supports a first primary heater (58), and in which another intermediate layer (52) supports a temperature compensation heater (50a, 50b). The primary heater (58) functions to maintain the calorimetric hydrocarbon gas sensor (10) at a constant, elevated temperature, while the active compensation heater (50a) functions to maintain substantially equal temperatures as determined by the thermometers (46a, 46b) located on an intermediate layer (48) overlying the compensation heaters (50a, 50b). Control circuitry is integrated with power measurement circuitry to measure differences in the heat produced by the compensation heater (50a) and the thermometer (46a) in an active region (100), and the heat produced by the compensation heater (50b) and the thermometer (46b) in a reference region (102).

公开(公告)号：WO2008033606A1

公开(公告)日：2008-03-20

申请号：PCT/US2007/074206

申请日：2007-07-24

Applicant: MOTOROLA, INC. ,  MANGAT, Pawitter, S. ,  D'URSO, John, J. ,  KORIPELLA, Chowdary, R. ,  KRISHNAN, Ramkumar

Inventor： MANGAT, Pawitter, S. ,  D'URSO, John, J. ,  KORIPELLA, Chowdary, R. ,  KRISHNAN, Ramkumar

IPC: H01M8/10

CPC classification number: H01M8/04089 ,  H01M8/1058 ,  H01M8/1076 ,  H01M8/1097 ,  Y02P70/56

Abstract: A method is provided for fabricating a fuel cell that requires only front side alignment techniques to fabricate gas access holes. The method comprises etching the front side of a substrate (12) to provide a channel (24, 26), and forming a pedestal (54, 88) on the front side of the substrate, wherein the pedestal (54, 88) comprises an anode side (56, 89) defining a fuel region (68, 102) aligned with the channel (24, 26). An electrolyte (46, 96) is positioned between the anode side (56, 89) and a cathode side (58, 90), and the fuel region (68, 102) is capped with an insulator (66, 98). A portion of the substrate (12) is removed from a back side to expose the channel (24, 26).

Abstract translation: 提供了一种用于制造仅需要前侧对准技术来制造气体进入孔的燃料电池的方法。 该方法包括蚀刻衬底（12）的前侧以提供通道（24,26），并且在衬底的前侧上形成基座（54,88），其中基座（54,88）包括 阳极侧（56,89）限定与通道（24,26）对准的燃料区域（68,102）。 电解质（46,96）位于阳极侧（56,89）和阴极侧（58,90）之间，燃料区域（68,102）用绝缘体（66,98）封盖。 从背面去除基板（12）的一部分以露出通道（24,26）。

公开(公告)号：EP0990144A1

公开(公告)日：2000-04-05

申请号：EP97926593.1

申请日：1997-05-20

Applicant: MOTOROLA, INC.

Inventor： KORIPELLA, Chowdary, R. ,  MOYA, Adam, D. ,  WILCOX, David, Sr.

IPC: G01N27/04 ,  G01N31/12 ,  G01N27/16 ,  G01N27/00 ,  G01N7/00 ,  G01N19/10 ,  G01N9/00

CPC classification number: G01N27/16 ,  G01N27/4075

Abstract: A multilayered ceramic integrated sensor (200) for monitoring auto exhaust gases is capable of existing in the relatively harsh environments of the exhaust stream of an internal combustion engine. The integrated sensor (200) may include discrete devices such as an oxygen sensor (104), a hydrogen sensor (206), an NOx sensor (208), and a carbon monoxide sensor (210). The device (200) may further include a temperature sensor (202) as well as a total combustion calorimetric sensor (101). The multilayered ceramic integrated sensor may be fabricated from a plurality of layers of ceramic material disposed in stacked relationship with respect to one another.

Abstract translation: 用于监测汽车排气的多层陶瓷集成传感器（200）能够存在于内燃机排气流的相对恶劣的环境中。 集成传感器（200）可以包括诸如氧气传感器（104），氢气传感器（206），NOx传感器（208）和一氧化碳传感器（210）的分立装置。 设备（200）还可以包括温度传感器（202）以及总燃烧量热传感器（101）。 多层陶瓷集成传感器可以由相互堆叠放置的多层陶瓷材料制成。

公开(公告)号：EP0966661A1

公开(公告)日：1999-12-29

申请号：EP98952347.0

申请日：1998-10-20

Applicant: MOTOROLA, INC.

Inventor： YOUNG, Daniel, A. ,  MOYA, Adam ,  KORIPELLA, Chowdary, R. ,  NABER, Jeffrey ,  ADAMS, Neil ,  MILLER, Adam ,  MARKYVECH, Craig

IPC: G01N25 ,  G01N27

CPC classification number: G01N27/16 ,  G01N25/30 ,  G01N27/419

Abstract: A calorimetric hydrocarbon gas sensor (10) includes an electrochemical oxygen pump (18), a sensing element (12), and a multi-layered substrate (26) separating the sensing element (12) from the electrochemical oxygen pump (18). The multi-layered substrate (26) includes a plurality of overlying insulating layers, in which at least one intermediate layer (60) supports a first primary heater (58), and in which another intermediate layer (52) supports a temperature compensation heater (50a, 50b). The primary heater (58) functions to maintain the calorimetric hydrocarbon gas sensor (10) at a constant, elevated temperature, while the active compensation heater (50a) functions to maintain substantially equal temperatures as determined by the thermometers (46a, 46b) located on an intermediate layer (48) overlying the compensation heaters (50a, 50b). Control circuitry is integrated with power measurement circuitry to measure differences in the heat produced by the compensation heater (50a) and the thermometer (46a) in an active region (100), and the heat produced by the compensation heater (50b) and the thermometer (46b) in a reference region (102).

公开(公告)号：EP0990144B1

公开(公告)日：2003-03-26

申请号：EP97926593.1

申请日：1997-05-20

Applicant: MOTOROLA, INC.

Inventor： KORIPELLA, Chowdary, R. ,  MOYA, Adam, D. ,  WILCOX, David, Sr.

IPC: G01N27/04 ,  G01N31/12 ,  G01N27/16 ,  G01N27/00 ,  G01N7/00 ,  G01N19/10 ,  G01N9/00

CPC classification number: G01N27/16 ,  G01N27/4075

公开(公告)号：WO2003016880A1

公开(公告)日：2003-02-27

申请号：PCT/US2002/024862

申请日：2002-08-02

Applicant: MOTOROLA, INC.

Inventor： COLL, Bernard, F. ,  ZENHAUSERN, Frederic ,  BURDON, Jeremy, W. ,  KORIPELLA, Chowdary, R.

IPC: G01N21/31

CPC classification number: G01N21/31 ,  G01N21/05 ,  G01N2021/0112 ,  G01N2021/0346

Abstract: A microhollow cathode discharge (MHCD) cavity (34) and microfluidic channel (50) are combined for interrogation of samples. The apparatus (30) includes a dielectric body (31) and layers (32) of conductive material defining a MHCD cavity (34) containing an environment for carrying a gas discharge within the MHCD cavity. The gas discharge generates gas based electromagnetic waves. Electrical connections (37, 38) apply a cathode discharge potential to the layers (32) of conductive material. A microfluidic channel (50) is integrated on the substrate, and a path extends from the MHCD cavity laterally through a portion of the microfluidic channel. A detector (54), which may be integrated on the common substrate, is positioned to receive electromagnetic waves from the path and electronic circuitry is coupled to the detector for acquiring and processing data.

Abstract translation: 将微气体阴极放电（MHCD）腔（34）和微流体通道（50）组合用于询问样品。 装置（30）包括电介质体（31）和导电材料层（32），其限定MHCD空腔（34），其包含用于承载MHCD空腔内的气体放电的环境。 气体放电产生基于气体的电磁波。 电连接（37,38）将阴极放电电位施加到导电材料的层（32）上。 微流体通道（50）集成在衬底上，并且路径从MHCD空腔横向延伸通过微流体通道的一部分。 可以集成在公共基板上的检测器（54）被定位成从路径接收电磁波，并且电子电路耦合到检测器以获取和处理数据。

公开(公告)号：WO1997044650A1

公开(公告)日：1997-11-27

申请号：PCT/US1997008462

申请日：1997-05-20

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  KORIPELLA, Chowdary, R. ,  MOYA, Adam, D. ,  WILCOX, David, Sr.

IPC: G01N27/04

CPC classification number: G01N27/16 ,  G01N27/4075

Abstract: A multilayered ceramic integrated sensor (200) for monitoring auto exhaust gases is capable of existing in the relatively harsh environments of the exhaust stream of an internal combustion engine. The integrated sensor (200) may include discrete devices such as an oxygen sensor (104), a hydrogen sensor (206), an NOx sensor (208), and a carbon monoxide sensor (210). The device (200) may further include a temperature sensor (202) as well as a total combustion calorimetric sensor (101). The multilayered ceramic integrated sensor may be fabricated from a plurality of layers of ceramic material disposed in stacked relationship with respect to one another.

Abstract translation: 用于监测汽车废气的多层陶瓷集成传感器（200）能够存在于内燃机排气流的相对苛刻的环境中。 集成传感器（200）可以包括诸如氧传感器（104），氢传感器（206），NOx传感器（208）和一氧化碳传感器（210）的分立装置。 装置（200）还可以包括温度传感器（202）以及总燃烧量热传感器（101）。 多层陶瓷集成传感器可以由相对于彼此堆叠关系设置的多层陶瓷材料制成。

公开(公告)号：WO2007027274A1

公开(公告)日：2007-03-08

申请号：PCT/US2006/023770

申请日：2006-06-19

Applicant: MOTOROLA, INC. ,  KORIPELLA, Chowdary, R. ,  D'URSO, John, J. ,  SMITH, Steven, M.

Inventor： KORIPELLA, Chowdary, R. ,  D'URSO, John, J. ,  SMITH, Steven, M.

IPC: H01M4/00

CPC classification number: H01M8/0289 ,  H01M8/023 ,  H01M8/0247 ,  H01M8/028 ,  H01M8/1097 ,  H01M8/2404 ,  H01M8/241 ,  H01M8/2484 ,  H01M2250/30 ,  Y02B90/18

Abstract: A micro fuel cell and method of forming such on a substrate (12) is provided that derive power from a three dimensional fuel/oxidant interchange. The fuel cell includes a plurality of porous pedestals (17) formed on the substrate (12), each porous pedestal (17) including an anode (68), a cathode (70) surrounding the anode (68); and an electrolyte (60) filling a cavity between the anode (68) and the cathode (70). The cathode (70) is accessible to ambient air, and the anode (68) has a passageway (30) thereto for receiving a fuel. The anode (68) and cathode (70) may be formed by etching a cavity for the electrolyte (60) or by forming trenches (58, 66) to form each anode (68) and cathode (70), wherein each trench (66) between an anode and cathode is filled with electrolyte.

Abstract translation: 提供一种微型燃料电池及其在基板（12）上形成的方法，其从三维燃料/氧化剂交换器获得功率。 所述燃料电池包括形成在所述基板（12）上的多个多孔基座（17），每个多孔基座（17）包括阳极（68），围绕所述阳极（68）的阴极（70）。 以及填充阳极（68）和阴极（70）之间的空腔的电解质（60）。 阴极（70）可以被环境空气接近，并且阳极（68）具有用于接收燃料的通道（30）。 阳极（68）和阴极（70）可以通过蚀刻用于电解质（60）的空腔或通过形成沟槽（58,66）以形成每个阳极（68）和阴极（70）而形成，其中每个沟槽（66） ）在阳极和阴极之间填充电解质。

公开(公告)号：WO2004101124A1

公开(公告)日：2004-11-25

申请号：PCT/US2004/014683

申请日：2004-05-12

Applicant: MOTOROLA, INC. ,  KORIPELLA, Chowdary, R. ,  CHANGRANI, Rajnish, G. ,  SAMMS, Stephen, R.

Inventor： KORIPELLA, Chowdary, R. ,  CHANGRANI, Rajnish, G. ,  SAMMS, Stephen, R.

IPC: B01F5/00

CPC classification number: B01F5/0646 ,  B01F5/0647 ,  B01F13/0059 ,  B01F2215/0098

Abstract: An exemplary system and method for providing substantially uniform mixing of fluid reactants, wherein the flow velocities and/or device dimensions generally correspond to Reynolds numbers less than unity, is disclosed as comprising inter alia: a first fluid inlet (210); a second fluid inlet (220); and a fluid transport channel (240) having a plurality of features (250) corresponding to relatively discontinuous or otherwise abrupt shifts in the fluid transportation gradient. Disclosed features and specifications may be variously controlled, adapted or otherwise optionally modified to improve mixing operation in any diffusion limited application. Exemplary embodiments of the present invention representatively provide for efficient mixing of fluid phases at relatively low Reynolds numbers and may be readily integrated with existing micro-scale technologies for the improvement of device package form factors, weights and other manufacturing and/or device performance metrics.

Abstract translation: 一种用于提供流体反应物的基本均匀混合的示例性系统和方法，其中流速和/或装置尺寸通常对应于小于1的雷诺数，包括：第一流体入口（210）; 第二流体入口（220）; 以及具有多个特征（250）的流体输送通道（240），其对应于流体输送梯度中相对不连续或以其他方式突然变化。 公开的特征和规格可以被不同地控制，适应或以其他方式任意地修改以改善任何扩散限制应用中的混合操作。 本发明的示例性实施例代表性地提供了在相对低的雷诺数下的流体相的有效混合，并且可以容易地与现有的微尺度技术集成以改进装置包装形状因子，重量以及其它制造和/或装置性能度量。

公开(公告)号：WO2002049132A3

公开(公告)日：2002-06-20

申请号：PCT/US2001/044053

申请日：2001-11-19

Applicant: MOTOROLA, INC.

Inventor： BOSTAPH, Joseph, W. ,  KORIPELLA, Chowdary, R. ,  FISHER, Allison, M.

IPC: H01M8/10

Abstract: A fuel cell system (10) and method of forming the fuel cell system including a base portion (14), formed of a singular body, and having a major surface (26). At least one fuel cell membrane electrode assembly (16) is formed on the major surface of the base portion. A fluid supply channel (32) including a mixing chamber (36) is defined in the base portion and communicating with the fuel cell membrane electrode assembly for supplying a fuel-bearing (34) to the membrane electrode assembly. A methanol concentration sensor (38) is positioned to communicate with the fuel cell membrane electrode assembly and the fuel- supply channel for regulating the mixture of fuel to the electrode assembly. An exhaust channel (38) including a water recovery and recirculation system (53) is defined in the base portion and communicating with the membrane electrode assembly.