公开(公告)号：US20210193709A1

公开(公告)日：2021-06-24

申请号：US16721253

申请日：2019-12-19

Applicant: STMicroelectronics Ltd

Inventor： Yu-Tsung LIN

IPC: H01L27/146 ,  G01J1/42 ,  G01J3/51

Abstract: Disclosed herein is an ambient light sensor formed by a substrate, and an inner central area defined on the substrate, and a concentric polygonal shape defined on the substrate about the inner central area. The concentric polygonal shape is defined by concentric polygonal isolation regions and spoke shaped isolation regions extending through respective corners of the concentric polygonal isolation regions to the inner central area to thereby divide the concentric polygonal shape into a plurality of concentric polygonal regions, with each of the plurality of concentric polygonal regions divided into a plurality of trapezoidal sections. A plurality of photodiodes ae formed on the substrate such that each of the plurality of trapezoidal sections contains at least one photodiode. A color filter is applied to the plurality of trapezoidal sections and their respective photodiodes to thereby form a plurality of color channels.

公开(公告)号：US10859817B2

公开(公告)日：2020-12-08

申请号：US16701495

申请日：2019-12-03

Applicant: STMicroelectronics Ltd

Inventor： Avi Resler

IPC: G02B26/10 ,  H04N9/31 ,  G02B26/08

Abstract: A controller chip includes processing circuitry configured to process received samples by estimating trend functions from the samples, subtracting the trend functions from the samples to produce de-trended samples, performing a mathematical transform on the de-trended samples to produce frequency bins. The frequency bins may correspond to unwanted resonance movement of a movable mirror associated with the received samples. The processing circuit further generates an error function from the frequency bins. The error function can be used to generate correction signals for the movable mirror that serve to minimize the error function.

公开(公告)号：US20200103645A1

公开(公告)日：2020-04-02

申请号：US16701495

申请日：2019-12-03

Applicant: STMicroelectronics Ltd

Inventor： Avi RESLER

IPC: G02B26/10 ,  G02B26/08 ,  H04N9/31

Abstract: A controller chip includes processing circuitry configured to process received samples by estimating trend functions from the samples, subtracting the trend functions from the samples to produce de-trended samples, performing a mathematical transform on the de-trended samples to produce frequency bins. The frequency bins may correspond to unwanted resonance movement of a movable mirror associated with the received samples. The processing circuit further generates an error function from the frequency bins. The error function can be used to generate correction signals for the movable mirror that serve to minimize the error function.

公开(公告)号：US20190011695A1

公开(公告)日：2019-01-10

申请号：US15643164

申请日：2017-07-06

Applicant: STMicroelectronics Ltd

Inventor： Guy Amor ,  Offir Duvdevany

IPC: G02B26/10

CPC classification number: G02B26/101 ,  H04N9/3135 ,  H04N9/3161 ,  H04N9/3164

Abstract: Mirror control circuitry described herein is for controlling a first micro-mirror of a micro-mirror apparatus that scans across a target area in a scan pattern. The mirror control circuitry includes a processor that determines a mechanical angle of the first micro-mirror for a given instant in time during scanning of the first micro-mirror between upper and lower rotational limits, the mechanical angle being such to maintain the scan pattern as being uniform while the micro-mirror apparatus scans across the target area between the upper and lower rotational limits. The processor also generates a driving signal for the first micro-mirror as a function of the determined mechanical angle for the first micro-mirror at the given instant in time.

公开(公告)号：US20180356627A1

公开(公告)日：2018-12-13

申请号：US15617032

申请日：2017-06-08

Applicant: STMicroelectronics Ltd

Inventor： Elik Haran

IPC: G02B26/08 ,  G02B26/10

CPC classification number: G02B26/0833 ,  G02B26/105

Abstract: Disclosed herein is a control circuit for a movable mirror. The control circuit includes driving circuitry configured to drive the movable mirror with a drive signal to effectuate oscillating of the movable mirror, opening angle determination circuitry configured to determine an opening angle of the movable mirror, and amplitude control circuitry. The amplitude control circuitry is configured to a) first cause the driving circuitry to generate the drive signal as having an upper threshold drive amplitude, and b) then later cause the driving circuitry to generate the drive signal as having a nominal drive amplitude, as a function of the opening angle of the movable mirror being equal to a desired opening angle.

公开(公告)号：US10078032B2

公开(公告)日：2018-09-18

申请号：US15188455

申请日：2016-06-21

Applicant: STMicroelectronics LTD

Inventor： Sason Sourani

IPC: G01M11/00 ,  G02B26/08 ,  G08B21/18 ,  B81B3/00

CPC classification number: G01M11/005 ,  B81B3/00 ,  B81B7/008 ,  B81B2201/042 ,  G02B26/0833 ,  G02B26/0841 ,  G08B21/185

Abstract: Disclosed herein is a circuit for determining failure of a movable MEMS mirror. The circuit includes an integrator receiving an opening angle signal representing an opening angle of the movable MEMS mirror, and a differentiator receiving the opening angle signal. A summing circuit is configured to sum the integrator output and the differentiator output. A comparison circuit is configured to determine whether the sum of the integrator output and differentiator output is not within a threshold window. An indicator circuit is configured to generate an indicator signal indicating that the movable MEMS mirror has failed based on the comparison circuit indicating that the sum of the integrator output and differentiator output is not within the threshold window.

公开(公告)号：US08921164B2

公开(公告)日：2014-12-30

申请号：US13772210

申请日：2013-02-20

Applicant: STMicroelectronics Ltd (Malta) ,  STMicroelectronics S.r.l.

Inventor： Kenneth Fonk ,  Luca Maggi ,  Jeremy Spiteri

IPC: H01L21/00 ,  H01L23/495

CPC classification number: B81B7/0045 ,  B81B2201/0264 ,  B81B2207/012 ,  B81C1/00238 ,  B81C1/00325 ,  B81C2203/0785 ,  B81C2203/0792 ,  H01L2224/27013 ,  H01L2224/32225 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/73265 ,  H01L2224/83192 ,  H01L2224/83385 ,  H01L2924/00014 ,  H01L2924/00

Abstract: A process for assembly of an integrated device, envisages: providing a first body of semiconductor material integrating at least one electronic circuit and having a top surface; providing a second body of semiconductor material integrating at least one microelectromechanical structure and having a bottom surface; and stacking the second body on the first body with the interposition, between the top surface of the first body and the bottom surface of the second body, of an elastic spacer material. Prior to the stacking step, the step is envisaged of providing, in an integrated manner, at the top surface of the first body a confinement and spacing structure that confines inside it the elastic spacer material and supports the second body at a distance from the first body during the stacking step.

Abstract translation: 集成装置的组装方法设想：提供集成至少一个电子电路并具有顶表面的第一半导体材料体; 提供集成至少一个微机电结构并具有底表面的第二半导体材料; 并且在所述第一主体的顶表面和所述第二主体的所述底表面之间插入所述第一主体上的所述第二主体的弹性间隔件材料。 在层叠步骤之前，该步骤被设想为以第一体积的方式在第一体的顶表面处提供约束和间隔结构，该限制和间隔结构在其内部限定弹性间隔物材料，并且将第二体与第一体 身体在堆叠步骤。

公开(公告)号：US20040227831A1

公开(公告)日：2004-11-18

申请号：US10820463

申请日：2004-04-08

Applicant: STMicroelectronics Ltd.

Inventor： Graeme Storm ,  Jonathan Ephriam David Hurwitz

IPC: H04N005/335

CPC classification number: H04N5/35518

Abstract: A logarithmic pixel is formed by a photodiode connected to a semiconductor device that is operating based upon a sub-threshold. A logarithmic output is taken from an output node connected to the pixel via an amplifier. To calibrate the pixel, the photodiode is isolated by a switch and a ramp voltage is applied as reference voltage to the amplifier. The ramp voltage acts across the constant internal capacitance of the pixel to produce in-pixel a constant current for calibration purposes.

Abstract translation: 对数像素由连接到基于子阈值操作的半导体器件的光电二极管形成。 通过放大器从连接到像素的输出节点获取对数输出。 为校准像素，光电二极管由开关隔离，斜坡电压作为参考电压施加到放大器。 斜坡电压作用在像素的恒定内部电容上，以产生像素内的恒定电流用于校准目的。

公开(公告)号：US20040227068A1

公开(公告)日：2004-11-18

申请号：US10677850

申请日：2003-10-02

Applicant: STMicroelectronics Ltd.

Inventor： Jeffrey Raynor ,  Jean-Luc Jaffard

IPC: H01L027/00 ,  H01J005/02

CPC classification number: H01L31/0203 ,  H01L27/14618 ,  H01L31/18 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A method for attaching a sensor and a housing to opposite sides of a mounting substrate is provided. The sensor has a sensing face that includes a sensing area and at least one signal output contact thereon. The mounting substrate has a circuitry face and at least one signal input contact thereon. The mounting substrate also has an opening therethrough. The method includes positioning the sensing area over the opening so that the at least one signal output contact of the sensor makes contact with the at least one signal input contact of the mounting substrate. The mounting substrate receives the housing so that the housing and the sensor are in alignment.

Abstract translation: 提供了一种用于将传感器和壳体附接到安装基板的相对侧的方法。 传感器具有感测面，其包括感测区域和其上的至少一个信号输出接触。 安装基板具有电路面和其上的至少一个信号输入触点。 安装基板也具有穿过其中的开口。 该方法包括将感测区域定位在开口上，使得传感器的至少一个信号输出触点与安装基板的至少一个信号输入触点接触。 安装基板接收壳体，使得壳体和传感器对准。

公开(公告)号：US20040068383A1

公开(公告)日：2004-04-08

申请号：US10610343

申请日：2003-06-30

Applicant: STMICROELECTRONICS S.A. ,  STMICROELECTRONICS LTD

Inventor： Hitesh Shah ,  Laurent Perier

IPC: G06F019/00

CPC classification number: H03L1/00

Abstract: A chip includes CPU (12), memories (13,14) for programs and data, peripheral units (18,19) for interacting with the outside world, and an internal RC oscillator (17) for providing clock signals. One of the peripheral units (18) includes a timer counter incremented at a frequency derived from the RC oscillator. The method does not try to change the frequency of the RC oscillator. Instead, an external calibration source (21) is connected to a capture input of the timer unit to provide a signal having a reference frequency, e.g. the mains frequency. The counter is sampled on active edges of that signal, and the sampled values are processed to derive a calibration ratio. After these calibration steps, a software correction is applied to parameters handled by programs stored in memory based on the calibration ratio to compensate for frequency variations of the RC oscillator.

Abstract translation: 芯片包括CPU（12），用于程序和数据的存储器（13,14），用于与外界相互作用的外围单元（18,19）和用于提供时钟信号的内部RC振荡器（17）。 外围单元（18）中的一个包括以从RC振荡器得到的频率递增的定时器计数器。 该方法不会改变RC振荡器的频率。 相反，外部校准源（21）连接到定时器单元的捕获输入，以提供具有参考频率的信号，例如， 电源频率。 在该信号的有效边沿对计数器进行采样，并处理采样值以导出校准比。 在这些校准步骤之后，基于校准比率对存储在存储器中的程序处理的参数应用软件校正以补偿RC振荡器的频率变化。