公开(公告)号：US11195809B2

公开(公告)日：2021-12-07

申请号：US16706594

申请日：2019-12-06

Applicant: STMICROELECTRONICS LTD

Inventor： Endruw Jahja ,  Cheng-Yang Su

IPC: H01L23/00

Abstract: A fan-out wafer level package includes a semiconductor die with a redistribution layer on a sidewall of the semiconductor die. A redistribution layer positioned over the die includes an extended portion that extends along the sidewall. The semiconductor die is encapsulated in a molding compound layer. The molding compound layer is positioned between the extended portion of the redistribution layer and the sidewall of the semiconductor die. Solder contacts, for electrically connecting the semiconductor device to an electronic circuit board, are positioned on the redistribution layer. The solder contacts and the sidewall of the redistribution layer can provide electrical contact on two different locations. Accordingly, the package can be used to improve interconnectivity by providing vertical and horizontal connections.

公开(公告)号：US20210048737A1

公开(公告)日：2021-02-18

申请号：US16540557

申请日：2019-08-14

Applicant: STMicroelectronics LTD

Inventor： Eli YASER ,  Guy AMOR ,  Yotam NACHMIAS ,  Dadi SHARON ,  Sivan NAGOLA

IPC: G03B21/28 ,  G02B26/08 ,  G02B26/10 ,  G03B21/20

Abstract: A control circuit includes a first control circuit generating a first drive control signal from a pre-drive signal (that is a frequency at which an opening angle of the first and second mirrors is equal) for the first mirror. A second control circuit generates a second drive control signal from the pre-drive signal for the second mirror. First and second drivers generate first and second drive signals for the first and second mirrors from the first and second drive control signals. The first and second drive control signals are generated so that the first and second drive signals each have a same frequency as the pre-drive signal but are different in amplitude from one another to cause the first and second mirrors to move at a same frequency, with a same and substantially constant given opening angle as one another, and in phase with one another.

公开(公告)号：US20200301127A1

公开(公告)日：2020-09-24

申请号：US16897491

申请日：2020-06-10

Applicant: STMicroelectronics LTD

Inventor： Elik HARAN ,  Offir DUVDEVANY ,  Naomi PETRUSHEVSKY

IPC: G02B26/08 ,  G01R19/04 ,  H02P25/032 ,  G02B26/10

Abstract: An electronic device includes an analog to digital converter receiving an analog mirror sense signal from an oscillating mirror and generating a digital mirror sense signal therefrom, and a digital signal processing block. The digital signal processing block cooperates with the analog to digital converter to take a first sample of the digital mirror sense signal at a first time where a derivative of capacitance of the digital mirror sense signal crosses zero, take a second sample of the digital mirror sense signal at a second time between a peak of the digital mirror sense signal and the first time, and take a third sample of the digital mirror sense signal at a third time after the digital mirror sense signal has reached a minimum. Control circuitry determines an opening angle of the oscillating mirror as a function of the first, second, and third samples.

公开(公告)号：US10469813B2

公开(公告)日：2019-11-05

申请号：US16032634

申请日：2018-07-11

Applicant: STMicroelectronics S.r.l. ,  STMicroelectronics Ltd

Inventor： Massimo Ratti ,  Naomi Petrushevsky ,  Eli Yaser ,  Yotam Nachimias

IPC: H04N9/31 ,  G06T1/20

Abstract: A light projection system includes a light module emitting a light beam and a movable mirror reflecting the light beam toward a surface. A graphics processing unit processes video data to compensate for a response of the light module. The response is an optical power of the light beam produced by the light module for a given forward current through the light module. A light source driver controls the light module as a function of the processed video data. Colors of the images from the video data produced on the surface by the light beam would otherwise not look as they are intended to look due to changing of the response of the light module, but the processing of the video data alters the video data such that the colors of the images from the video data produced on the surface look as they are intended to look.

公开(公告)号：US20190306380A1

公开(公告)日：2019-10-03

申请号：US15941717

申请日：2018-03-30

Applicant: STMicroelectronics LTD ,  STMicroelectronics S.r.l.

Inventor： Eli YASER ,  Massimo RATTI ,  Naomi PETRUSHEVSKY

IPC: H04N5/06 ,  H04N9/31 ,  H04N7/01

Abstract: Described herein is a video projection system including an optical module with at least one collimated light source to generate a light beam and at least one movable mirror to reflect the light beam. The video projection system also includes a video source producing a digital video stream in accordance with a clock signal and a movement synchronization signal, as well as a projector system. The projector system includes mirror control circuitry configured to control movement of the at least one movable mirror in accordance with the clock signal and the movement synchronization signal, a light source controller configured to control generation of collimated light by the at least one collimated light source, and processing circuitry configured to receive the digital video stream, and to generate control signals for the light source controller based upon the received digital video stream.

公开(公告)号：US20180164579A1

公开(公告)日：2018-06-14

申请号：US15838843

申请日：2017-12-12

Applicant: STMicroelectronics Ltd

Inventor： Elik Haran ,  Offir Duvdevany ,  Naomi Petrushevsky

IPC: G02B26/08 ,  G02B26/10 ,  H02P25/032 ,  G01R19/04

CPC classification number: G02B26/085 ,  G01R19/04 ,  G02B26/0833 ,  G02B26/105 ,  H02P25/032

Abstract: Disclosed herein is an electronic device that includes a peak detection circuit configured to receive a mirror sense signal from an oscillating mirror and to generate peak information for a mirror period as a function thereof. The electronic device includes a mirror control circuit that estimates an opening angle of the oscillating mirror as a function of the peak information, generates a control signal for the oscillating mirror as a function of the estimated opening angle, and resets the peak detection circuit at an end of the mirror period.

公开(公告)号：US20170318271A1

公开(公告)日：2017-11-02

申请号：US15458192

申请日：2017-03-14

Applicant: STMicroelectronics Ltd

Inventor： Sason Sourani

IPC: H04N9/31 ,  G02B27/14

CPC classification number: H04N9/3194 ,  G02B27/141 ,  H04N9/3129 ,  H04N9/3158 ,  H04N9/3161 ,  H04N9/3182 ,  H04N9/3185

Abstract: A color calibration device for a laser scanning apparatus includes a compensation unit configured to electronically compensate for positional errors of the three-color laser source. The compensation unit includes an emitted light detector configured to measure a power of an emitted light beam. A calibration unit coupled to the emitted light detector has a controller configured to generate a quantity correction value for the three-color laser source. A laser source control element is configured to generate a control quantity for the three-color laser source, based on the quantity correction value. A dominant color detector is configured to detect any dominant color in the light beam being projected and actuate the controller for the dominant color.

公开(公告)号：US20170285327A1

公开(公告)日：2017-10-05

申请号：US15280691

申请日：2016-09-29

Applicant: STMicroelectronics Ltd

Inventor： Offir Duvdevany ,  Dadi Sharon ,  Sason Sourani

IPC: G02B26/08 ,  G02B26/10 ,  G03B21/00 ,  G02B7/182

CPC classification number: G02B26/0833 ,  G02B7/1821 ,  G02B26/0841 ,  G02B26/105 ,  G03B21/008

Abstract: The method for controlling an angular position of a MEMS mirror, includes: applying a first driving moment to the MEMS mirror to generate a rotational scanning movement of the mirror; and, at a zooming instant, applying a second driving moment to the MEMS mirror, wherein the second driving moment is equal to the first driving moment plus an extra moment. The extra moment may be a DC offset. After a transient period of time from zooming instant, a third driving moment M2=k{dot over (θ)}2t is applied. The first and third driving moment are variable linearly with time. The driving moments are applied to torsional springs of the mirror.

公开(公告)号：US08748291B2

公开(公告)日：2014-06-10

申请号：US13629157

申请日：2012-09-27

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

Inventor： Mark Anthony Azzopardi ,  Conrad Cachia ,  Stefano Pozzi

IPC: H01L21/30 ,  H01L21/46 ,  H01L21/00 ,  H01L21/44 ,  H01L21/48 ,  H01L21/50

CPC classification number: B81C99/004 ,  H01L24/97 ,  H01L2224/48091 ,  H01L2224/49109 ,  H01L2224/73265 ,  H01L2924/181 ,  H01L2924/00014 ,  H01L2924/00

Abstract: A method for testing a strip of MEMS devices, the MEMS devices including at least a respective die of semiconductor material coupled to an internal surface of a common substrate and covered by a protection material; the method envisages: detecting electrical values generated by the MEMS devices in response to at least a testing stimulus; and, before the step of detecting, at least partially separating contiguous MEMS devices in the strip. The step of separating includes defining a separation trench between the contiguous MEMS devices, the separation trench extending through the whole thickness of the protection material and through a surface portion of the substrate, starting from the internal surface of the substrate.

Abstract translation: 一种用于测试MEMS器件条的方法，所述MEMS器件至少包括耦合到公共衬底的内表面并由保护材料覆盖的半导体材料的相应裸片; 该方法设想：响应于至少一个测试刺激来检测由MEMS器件产生的电值; 并且在所述检测步骤之前，至少部分地分离所述条带中的连续的MEMS器件。 分离步骤包括在连续的MEMS器件之间限定分离沟槽，分离沟槽从衬底的内表面开始延伸穿过保护材料的整个厚度并穿过衬底的表面部分。

公开(公告)号：US20130032936A1

公开(公告)日：2013-02-07

申请号：US13648213

申请日：2012-10-09

Applicant: STMICROELECTRONICS LTD (MALTA)

Inventor： Kevin Formosa

IPC: H01L23/12 ,  H01L21/50

CPC classification number: B81B7/0074 ,  B81B7/0061 ,  B81B2201/0257 ,  B81B2207/012 ,  B81C1/00309 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48227 ,  H01L2224/4824 ,  H04R19/005 ,  H04R19/04 ,  H04R31/00 ,  H04R2201/003 ,  H01L2924/00014

Abstract: A packaged MEMS device, wherein at least two support structures are stacked on each other and are formed both by a support layer and a wall layer coupled to each other and delimiting a respective chamber. The chamber of the first support structure is upwardly delimited by the support layer of the second support structure. A first and a second dice are accommodated in a respective chamber, carried by the respective support layer of the first support structure. The support layer of the second support structure has a through hole allowing wire connections to directly couple the first and the second dice. A lid substrate, coupled to the second support structure, closes the chamber of the second support structure.

Abstract translation: 一种封装的MEMS器件，其中至少两个支撑结构彼此堆叠并且由支撑层和彼此耦合并限定相应室的壁层形成。 第一支撑结构的腔室由第二支撑结构的支撑层向上限定。 第一和第二骰子容纳在由第一支撑结构的相应支撑层承载的相应的腔室中。 第二支撑结构的支撑层具有允许电线连接直接耦合第一和第二裸片的通孔。 耦合到第二支撑结构的盖基板封闭第二支撑结构的室。