公开(公告)号：US11009474B2

公开(公告)日：2021-05-18

申请号：US16217631

申请日：2018-12-12

Applicant: STMICROELECTRONICS PTE LTD

Inventor： Malek Brahem ,  Hatem Majeri ,  Olivier Le Neel ,  Ravi Shankar

IPC: G01N7/00 ,  G01N21/00 ,  G01N27/00 ,  G01N31/00 ,  G01N33/00 ,  G01N27/12

Abstract: The present disclosure is directed to a gas sensor device that includes a plurality of gas sensors. Each of the gas sensors includes a semiconductor metal oxide (SMO) film, a heater, and a temperature sensor. Each of the SMO films is designed to be sensitive to a different gas concentration range. As a result, the gas sensor device is able to obtain accurate readings for a wide range of gas concentration levels. In addition, the gas sensors are selectively activated and deactivated based on a current gas concentration detected by the gas sensor device. Thus, the gas sensor device is able to conserve power as gas sensors are on when appropriate instead of being continuously on.

公开(公告)号：US10768133B2

公开(公告)日：2020-09-08

申请号：US15723661

申请日：2017-10-03

Applicant: STMicroelectronics Pte Ltd

Inventor： Ravi Shankar ,  Olivier Le Neel ,  Tien-Choy Loh ,  Shian-Yeu Kam

IPC: G01N27/12 ,  G01N27/22

Abstract: Miniature resistive gas detectors incorporate thin films that can selectively identify specific gases when heated to certain characteristic temperatures. A solid state gas sensor module is disclosed that includes a gas sensor, a heater, and a temperature sensor, stacked over an insulating recess. The insulating recess is partially filled with a support material that provides structural integrity. The solid state gas sensor module can be integrated on top of an ASIC on a common substrate. With sufficient thermal insulation, such a gas detector can be provided as a low-power component of mobile electronic devices such as smart phones. A method of operating a multi-sensor array allows detection of relative concentrations of different gas species by either using dedicated sensors, or by thermally tuning the sensors to monitor different gas species.

公开(公告)号：US09818937B2

公开(公告)日：2017-11-14

申请号：US14982600

申请日：2015-12-29

Applicant: STMicroelectronics Pte Ltd

Inventor： Olivier Le Neel ,  Ravi Shankar

IPC: H01L21/00 ,  H01L43/14 ,  G01N27/74 ,  H01L21/8234 ,  H01L43/04 ,  H01L43/06 ,  H01L43/10

CPC classification number: H01L43/14 ,  G01N27/74 ,  H01L21/8234 ,  H01L43/04 ,  H01L43/065 ,  H01L43/10 ,  Y10T29/4913

Abstract: A miniature oxygen sensor makes use of paramagnetic properties of oxygen gas to provide a fast response time, low power consumption, improved accuracy and sensitivity, and superior durability. The miniature oxygen sensor disclosed maintains a sample of ambient air within a micro-channel formed in a semiconductor substrate. O2 molecules segregate in response to an applied magnetic field, thereby establishing a measurable Hall voltage. Oxygen present in the sample of ambient air can be deduced from a change in Hall voltage with variation in the applied magnetic field. The magnetic field can be applied either by an external magnet or by a thin film magnet integrated into a gas sensing cavity within the micro-channel. A differential sensor further includes a reference element containing an unmagnetized control sample. The miniature oxygen sensor is suitable for use as a real-time air quality monitor in consumer products such as smart phones.

公开(公告)号：US09530681B2

公开(公告)日：2016-12-27

申请号：US14986130

申请日：2015-12-31

Applicant: STMicroelectronics Pte Ltd

Inventor： Calvin Leung ,  Olivier Le Neel

IPC: H01L21/683 ,  H01L21/768 ,  H01L27/06 ,  H01L23/498 ,  H01L23/538 ,  H01L23/31 ,  H01L21/56 ,  H01L21/48 ,  H01L23/00 ,  H01L27/105 ,  H01L49/02 ,  H01L29/66

CPC classification number: H01L21/6835 ,  H01L21/4846 ,  H01L21/568 ,  H01L21/76895 ,  H01L23/3135 ,  H01L23/49822 ,  H01L23/4985 ,  H01L23/5389 ,  H01L24/20 ,  H01L27/0629 ,  H01L27/1052 ,  H01L28/60 ,  H01L29/6675 ,  H01L2221/68345 ,  H01L2221/68359 ,  H01L2224/18 ,  H01L2924/0002 ,  H01L2924/00

Abstract: An electronic device is formed by depositing polyimide on a glass substrate. A conductive material is deposited on the polyimide and patterned to form electrodes and signal traces. Remaining portions of the electronic device are formed on the polyimide. A second polyimide layer is then formed on the first polyimide layer. The glass substrate is then removed, exposing the electrodes and the top surface of the electronic device.

公开(公告)号：US09435763B2

公开(公告)日：2016-09-06

申请号：US13929515

申请日：2013-06-27

Applicant: STMicroelectronics Pte Ltd.

Inventor： Olivier Le Neel ,  Suman Cherian

IPC: G01N27/327

CPC classification number: G01N27/3274 ,  G01N27/327

Abstract: A bio-fluid test strip includes a fluid receiving area and a contact pad area for interfacing with a fluid sensing device. The test strip includes a fluid sensing electrodes and a first temperature sensing resistor in the fluid receiving area. The test strip further includes a second temperature sensing resistor in the contact pad area. The first and second temperature sensing resistors together provide an indication of the temperature difference between the fluid sensing area and ambience.

Abstract translation: 生物流体测试条包括用于与流体感测装置接口的流体接收区域和接触焊盘区域。 测试条在流体接收区域中包括流体感测电极和第一温度感测电阻器。 测试条还包括接触焊盘区域中的第二温度感测电阻器。 第一和第二温度感测电阻器一起提供流体感测区域和环境之间的温度差的指示。

公开(公告)号：US09257423B2

公开(公告)日：2016-02-09

申请号：US14090673

申请日：2013-11-26

Applicant: STMicroelectronics Pte. Ltd.

Inventor： Calvin Leung ,  Olivier Le Neel

IPC: H01L27/06 ,  H01L21/768 ,  H01L23/498 ,  H01L23/538 ,  H01L23/31 ,  H01L21/56

CPC classification number: H01L21/6835 ,  H01L21/4846 ,  H01L21/568 ,  H01L21/76895 ,  H01L23/3135 ,  H01L23/49822 ,  H01L23/4985 ,  H01L23/5389 ,  H01L24/20 ,  H01L27/0629 ,  H01L27/1052 ,  H01L28/60 ,  H01L29/6675 ,  H01L2221/68345 ,  H01L2221/68359 ,  H01L2224/18 ,  H01L2924/0002 ,  H01L2924/00

Abstract: An electronic device is formed by depositing polyimide on a glass substrate. A conductive material is deposited on the polyimide and patterned to form electrodes and signal traces. Remaining portions of the electronic device are formed on the polyimide. A second polyimide layer is then formed on the first polyimide layer. The glass substrate is then removed, exposing the electrodes and the top surface of the electronic device.

Abstract translation: 通过在玻璃基板上沉积聚酰亚胺形成电子器件。 导电材料沉积在聚酰亚胺上并图案化以形成电极和信号迹线。 电子器件的剩余部分形成在聚酰亚胺上。 然后在第一聚酰亚胺层上形成第二聚酰亚胺层。 然后去除玻璃基板，暴露电极和电子设备的顶表面。

公开(公告)号：US20150001659A1

公开(公告)日：2015-01-01

申请号：US13929610

申请日：2013-06-27

Applicant: STMICROELECTRONICS PTE LTD

Inventor： Olivier Le Neel ,  Ravi Shankar ,  Tien Choy Loh

IPC: H01L27/146

CPC classification number: H01L27/14629 ,  H01L27/14634 ,  H01L27/1467 ,  H01L27/14685 ,  H01L27/1469 ,  H01L2924/1461

Abstract: The present disclosure is directed to an infrared sensor that includes a plurality of pairs of support structures positioned on the substrate, each pair including a first support structure adjacent to a second support structure. The sensor includes plurality of pixels, where each pixel is associated with one of the pairs of support structures. Each pixel includes a first infrared reflector layer on the substrate between the first and the second support structures, a membrane formed on the first and second support structures, a thermally conductive resistive layer on the membrane and positioned above the first infrared reflector layer, a second infrared reflector layer on the resistive layer, and an infrared absorption layer on the second infrared reflector layer.

Abstract translation: 本公开涉及一种红外传感器，其包括定位在基板上的多对支撑结构，每对包括邻近第二支撑结构的第一支撑结构。 传感器包括多个像素，其中每个像素与一对支撑结构中的一个相关联。 每个像素包括在第一和第二支撑结构之间的衬底上的第一红外反射器层，形成在第一和第二支撑结构上的膜，膜上的导热电阻层并且位于第一红外反射层之上，第二 电阻层上的红外线反射层，以及第二红外线反射层上的红外线吸收层。

公开(公告)号：US08885390B2

公开(公告)日：2014-11-11

申请号：US14150676

申请日：2014-01-08

Applicant: STMicroelectronics Pte Ltd.

Inventor： Olivier Le Neel

IPC: G11C11/00 ,  G11C11/56 ,  G11C13/00 ,  G11C11/21

CPC classification number: G11C13/0002 ,  G11C11/21 ,  G11C11/56 ,  G11C11/5678 ,  G11C13/0007 ,  G11C13/004 ,  G11C13/0061 ,  G11C13/0069 ,  G11C2013/008 ,  G11C2213/33 ,  G11C2213/71

Abstract: An integrated circuit is formed having an array of memory cells located in the dielectric stack above a semiconductor substrate. Each memory cell has two adjustable resistors and two heating elements. A dielectric material separates the heating elements from the adjustable resistors. One heating element alters the resistance of one of the resistors by applying heat thereto to write data to the memory cell. The other heating element alters the resistance of the other resistor by applying heat thereto to erase data from the memory cell.

公开(公告)号：US20140294046A1

公开(公告)日：2014-10-02

申请号：US13853801

申请日：2013-03-29

Applicant: STMICROELECTRONICS PTE LTD.

Inventor： Olivier Le Neel ,  Ravi Shankar ,  Suman Cherian

IPC: G01W1/02

CPC classification number: G01W1/02 ,  G01F1/44 ,  G01P5/14

Abstract: Sensors for air flow, temperature, pressure, and humidity are integrated onto a single semiconductor die within a miniaturized Venturi chamber to provide a microelectronic semiconductor-based environmental multi-sensor module that includes an air flow meter. One or more such multi-sensor modules can be used as building blocks in dedicated application-specific integrated circuits (ASICs) for use in environmental control appliances that rely on measurements of air flow. Furthermore, the sensor module can be built on top of existing circuitry that can be used to process signals from the sensors. By integrating the Venturi chamber with accompanying environmental sensors, correction factors can be obtained and applied to compensate for temporal humidity fluctuations and spatial temperature variation using the Venturi apparatus.

Abstract translation: 用于气流，温度，压力和湿度的传感器被集成到小型文丘里室内的单个半导体管芯上，以提供包括空气流量计的基于微电子半导体的环境多传感器模块。 一个或多个这样的多传感器模块可以用作专用于专用集成电路（ASIC）中的构件块，用于依赖于气流测量的环境控制设备。 此外，传感器模块可以建立在可用于处理来自传感器的信号的现有电路之上。 通过将文丘里腔室与随附的环境传感器集成，可以获得校正因子并应用于使用文丘里仪器来补偿时间湿度波动和空间温度变化。

公开(公告)号：US11821884B2

公开(公告)日：2023-11-21

申请号：US17166580

申请日：2021-02-03

Applicant: STMICROELECTRONICS S.r.l. ,  STMICROELECTRONICS PTE LTD

Inventor： Malek Brahem ,  Hatem Majeri ,  Olivier Le Neel ,  Ravi Shankar ,  Enrico Rosario Alessi ,  Pasquale Biancolillo

IPC: G01N33/00 ,  G01N27/12 ,  G01N27/02

CPC classification number: G01N33/0047 ,  G01N27/021 ,  G01N27/12

Abstract: The present disclosure is directed to a gas sensor device that detects gases with large molecules (e.g., a gas with a molecular weight between 150 g/mol and 450 g/mol), such as siloxanes. The gas sensor device includes a thin film gas sensor and a bulk film gas sensor. The thin film gas sensor and the bulk film gas sensor each include a semiconductor metal oxide (SMO) film, a heater, and a temperature sensor. The SMO film of the thin film gas sensor is an thin film (e.g., between 90 nanometers and 110 nanometers thick), and the SMO film of the bulk film gas sensor is an thick film (e.g., between 5 micrometers and 20 micrometers thick). The gas sensor device detects gases with large molecules based on a variation between resistances of the SMO thin film and the SMO thick film.