公开(公告)号：US20220337236A1

公开(公告)日：2022-10-20

申请号：US17658016

申请日：2022-04-05

Applicant: STMicroelectronics S.r.I.

Inventor： Noemi Gallo ,  Edoardo Botti

IPC: H03K17/56 ,  H03K19/20

Abstract: A circuit includes a high-side switch and a low-side switch. A first inverter includes first and second discharge current paths activatable to sink first and second discharge currents, respectively, from the control terminal of the high-side switch. A second inverter includes first and second charge current paths activatable to source first and second charge currents to the control terminal of the low-side switch. A high-side sensing current path includes an intermediate high-side control node, and a low-side sensing current path includes an intermediate low-side control node. The second discharge current path is selectively enablable in response to a high-side detection signal at the intermediate high-side control node having a high logic value, and the second charge current path is selectively enablable in response to a low-side detection signal at the intermediate low-side control node having a low logic value.

公开(公告)号：US20210384828A1

公开(公告)日：2021-12-09

申请号：US17244406

申请日：2021-04-29

Applicant: STMicroelectronics S.r.I.

Inventor： Enrico Ferrara ,  Luca Morinelli

IPC: H02M3/158 ,  H02M1/08

Abstract: An embodiment buck converter control circuit comprises an error amplifier configured to generate an error signal based on a feedback signal and a reference signal, a pulse generator circuit configured to generate a pulsed signal having switching cycles set to high and low as a function of the error signal, a driver circuit configured to generate a drive signal for an electronic switch of the buck converter as a function of the pulsed signal, a variable load, connected between two output terminals of the buck converter, configured to absorb a current based on a control signal, and a detector circuit configured to monitor a first signal indicative of an output current provided by the buck converter and a second signal indicative of a negative transient of the output current, and verify whether the second signal indicates a negative transient of the output current.

公开(公告)号：US20140291781A1

公开(公告)日：2014-10-02

申请号：US14224861

申请日：2014-03-25

Applicant: STMicroelectronics S.r.I.

Inventor： Mark Andrew Shaw ,  Fabrizio Soglio

IPC: B81B7/00 ,  B81C1/00

CPC classification number: B81B7/0032 ,  B81C1/00261 ,  H01L29/84 ,  H04R19/005 ,  H04R19/02 ,  H04R31/00

Abstract: A packaged MEMS transducer device comprising: a die, including: a semiconductor body having a front side and a back side, opposite to one another in a first direction, at least one cavity extending through the semiconductor body between the front side and the back side, and at least one membrane extending on the front side at least partially suspended over the cavity; and a package designed to house the die on an inner surface thereof. The transducer device moreover includes a sealing layer extending on the back side of the semiconductor body for sealing the cavity, and includes a paste layer extending between the sealing layer and the inner surface of the package for firmly coupling the die to the package.

Abstract translation: 一种封装的MEMS换能器装置，包括：模具，包括：半导体本体，其具有在第一方向上彼此相对的前侧和后侧，至少一个在前侧和后侧之间延伸穿过半导体本体的空腔 并且至少一个膜在前侧延伸至少部分地悬挂在空腔上; 以及设计成在其内表面上容纳模具的包装。 换能器装置还包括在半导体本体的后侧延伸的密封层，用于密封空腔，并且包括在密封层和封装的内表面之间延伸的糊层，用于将管芯牢固地连接到封装。

公开(公告)号：US20140286584A1

公开(公告)日：2014-09-25

申请号：US14222803

申请日：2014-03-24

Applicant: STMicroelectronics S.r.I.

Inventor： Daniele ALFONSO

IPC: H04N19/60 ,  H04N19/44

CPC classification number: H04N19/60 ,  H04N19/126 ,  H04N19/13 ,  H04N19/132 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/18 ,  H04N19/1883 ,  H04N19/423 ,  H04N19/44 ,  H04N19/63

Abstract: An embodiment for encoding digital images includes: partitioning the images into image blocks, subjecting the image blocks to transform into the frequency domain, and, possibly after thresholding resulting in lossy encoding, subjecting the image blocks transformed into the frequency domain to variable length coding to produce compressed encoded image blocks. Transform into the frequency domain may be, e.g., via wavelet transform, such as Haar wavelet transform, and variable length coding may be via Exponential-Golomb codes. An embodiment may also be adapted for transferring picture data over a bus in a system such as, e.g., a System-on-Chip (SoC) by generating compressed encoded image blocks for transfer over the bus and decoding compressed encoded image blocks transferred over the bus.

Abstract translation: 用于编码数字图像的实施例包括：将图像分割成图像块，使图像块变换到频域，并且可能在阈值化之后导致有损编码，将经变换到频域中的图像块进行可变长度编码 产生压缩编码图像块。 变换到频域可以是例如通过小波变换（例如Haar小波变换），并且可变长度编码可以经由指数 - 哥伦布码。 一个实施例还可以适用于通过生成用于在总线上传送的压缩编码图像块并解码通过总线传送的压缩编码图像块来在诸如片上系统（SoC）的系统中的总线上传送图像数据 总线。

公开(公告)号：US20140217943A1

公开(公告)日：2014-08-07

申请号：US14247817

申请日：2014-04-08

Applicant: STMICROELECTRONICS, INC. ,  STMICROELECTRONICS S.r.I.

Inventor： Frederic BONVIN ,  Agostino MIRABELLI ,  Maurizio NESSI

IPC: H02P6/18

CPC classification number: H02P6/10 ,  G11B19/20 ,  H02P6/085 ,  H02P6/18

Abstract: An embodiment of a motor controller includes first and second supply nodes, a motor-coil node, an isolator, a motor driver, and a motor position signal generator. The isolator is coupled between the first and second supply nodes, and the motor driver is coupled to the second supply node and to the motor-coil node. The motor position signal generator is coupled to the isolator and is operable to generate, in response to the isolator, a motor-position signal that is related to a position of a motor having at least one coil coupled to the motor-coil node. By generating the motor-position signal in response to the isolator, the motor controller or another circuit may determine the at-rest or low-speed position of a motor without using an external coil-current-sense circuit.

Abstract translation: 电动机控制器的实施例包括第一和第二供电节点，电动机线圈节点，隔离器，电动机驱动器和电动机位置信号发生器。 隔离器耦合在第一和第二电源节点之间，电动机驱动器耦合到第二电源节点和电动机线圈节点。 电动机位置信号发生器耦合到隔离器并且可操作以响应于隔离器产生与具有耦合到电动机线圈节点的至少一个线圈的电动机的位置有关的电动机位置信号。 通过响应于隔离器产生电动机位置信号，电动机控制器或另一电路可以在不使用外部线圈电流检测电路的情况下确定电动机的静止或低速位置。

公开(公告)号：US20140217533A1

公开(公告)日：2014-08-07

申请号：US14168754

申请日：2014-01-30

Applicant: STMicroelectronics S.r.I.

Inventor： Alberto Pagani

IPC: H01L43/02

CPC classification number: H01L43/02 ,  G01R33/0005 ,  G01R33/0011 ,  G01R33/0047 ,  G01R33/04 ,  H01L2224/05571 ,  H01L2224/05573 ,  H01L2224/16225 ,  H01L2224/16227 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2924/00014 ,  H01L2924/15311 ,  H01L2924/18161 ,  H01L2224/13099 ,  H01L2224/05599

Abstract: An integrated magnetic sensor formed by a semiconductor chip having a surface and accommodating a magnetic via and a sensing coil. The magnetic via is formed by a cylindrical layer of ferromagnetic material that extends perpendicular to the surface of the first chip and has in cross-section an annular shape of a circular or elliptical or curvilinear type. The sensing coil surrounds the magnetic via at a distance and is connected to an electronic circuit.

Abstract translation: 由具有表面并容纳磁通孔和感测线圈的半导体芯片形成的集成磁传感器。 磁通孔由垂直于第一芯片的表面延伸的铁磁材料的圆柱形层形成，并且具有圆形或椭圆形或曲线型的环形形状。 感测线圈围绕磁通道一段距离并且连接到电子电路。

公开(公告)号：US20140198995A1

公开(公告)日：2014-07-17

申请号：US14156327

申请日：2014-01-15

Applicant: STMICROELECTRONICS S.r.I.

Inventor： Danilo Pietro PAU ,  Arcangelo Ranieri BRUNA ,  Ettore NAPOLI ,  Giorgio LOPEZ

IPC: G06T3/40

CPC classification number: G06T3/4092 ,  G06F17/30247 ,  G06K9/00986 ,  G06K9/4671 ,  G06K9/527 ,  G06T3/4084

Abstract: An embodiment of a method for computing pyramids of input images (I) in a transformed domain, e.g., for search and retrieval purposes, includes:—arranging input images in blocks to produce input image blocks,—subjecting the input image blocks to block processing including: transform into a transformed domain, subjecting the image blocks transformed into a transformed domain to filtering, subjecting the image blocks transformed into a transformed domain and filtered to inverse transform implementing an inverse transform with respect to the previous transform into a transformed domain, thus producing a set of processed blocks. The set of processed blocks, which is recomposeable to an image pyramid, may be used, e.g., in detecting extrema points in images in the pyramid, extracting a patch of given size around the extrema points detected, and processing the patch to obtain local descriptors such as SIFT descriptors of a feature.

Abstract translation: 用于计算变换域中的输入图像（I）的棱锥的方法的实施例，例如用于搜索和检索目的，包括： - 以块为单位布置输入图像以产生输入图像块， - 输入输入图像块以阻止处理 包括：变换为变换域，对经变换的域进行滤波，对变换后的图像块进行变换后进行逆变换，将前一变换的逆变换实现为变换域， 产生一组加工块。 可以使用可重构为图像金字塔的处理块的集合，例如，在检测金字塔中的图像中的极值点时，在检测到的极值点处提取给定大小的块，并且处理该补丁以获得局部描述符 例如功能的SIFT描述符。

公开(公告)号：US20140191114A1

公开(公告)日：2014-07-10

申请号：US14146175

申请日：2014-01-02

Applicant: STMICROELECTRONICS S.r.I.

Inventor： Alfio RUSSO ,  Massimo Cataldo MAZZILLO

IPC: G01S17/02

CPC classification number: G01S17/026 ,  G01J1/44 ,  G01S17/08

Abstract: A proximity sensor may include an array of Geiger mode avalanche photodiodes, each including an anode contact and a cathode contact. A common cathode contact may be coupled to the cathode contacts of the array to define a first connection lead at a back side of the array. A common anode collecting grid contact may be coupled to the anode contacts of the array to define a second connection lead of the array. Circuitry may be coupled with the first and second connection leads and configured to sense at least one of a dark current and a rate of current spikes generated in dark conditions, and generate an output signal representing, an estimated distance of an object from the array upon the sensing.

Abstract translation: 接近传感器可以包括Geiger模式雪崩光电二极管阵列，每个包括阳极接触和阴极接触。 公共阴极接触件可以耦合到阵列的阴极触点，以在阵列的背面限定第一连接引线。 公共阳极集电栅极触点可以耦合到阵列的阳极触点以限定阵列的第二连接引线。 电路可以与第一和第二连接引线耦合并且被配置为感测暗电流和在黑暗条件下产生的电流尖峰的速率中的至少一个，并且产生一个输出信号，该输出信号表示对象从阵列的估计距离 感应。

公开(公告)号：US20140054685A1

公开(公告)日：2014-02-27

申请号：US13967217

申请日：2013-08-14

Applicant: STMicroelectronics S.r.I.

Inventor： Giuseppe Consentino ,  Antonio Giuseppe Grimaldi ,  Monica Micciché

IPC: H01L29/78 ,  H01L29/66

CPC classification number: H01L29/7813 ,  H01L29/0878 ,  H01L29/1033 ,  H01L29/42376 ,  H01L29/66734 ,  H01L29/7831

Abstract: A semiconductor device that includes a semiconductor body, having a front side and a back side opposite to one another in a first direction of extension; a drift region, which extends in the semiconductor body, faces the front side, and has a first type of conductivity and a first value of doping; a body region, which has a second type of conductivity opposite to the first type of conductivity, extends in the drift region, and faces the front side of the semiconductor body; a first control terminal, which extends on the front side of the semiconductor body, at least partially overlapping, in the first direction of extension, the body region; and a second control terminal, which extends to a first depth in the semiconductor body, inside the body region, and is staggered with respect to the first control terminal.

Abstract translation: 一种半导体器件，包括半导体本体，其具有在第一延伸方向上彼此相对的前侧和后侧; 在半导体本体中延伸的漂移区域面向前侧，并且具有第一类型的导电性和第一掺杂值; 具有与第一导电类型相反的第二导电类型的主体区域在漂移区域中延伸并且面向半导体本体的前侧; 第一控制端子，其在半导体主体的前侧延伸，在第一延伸方向上至少部分地重叠; 以及第二控制端子，其在所述体区域内延伸到所述半导体主体中的第一深度，并且相对于所述第一控制端子交错。

公开(公告)号：US20140027837A1

公开(公告)日：2014-01-30

申请号：US13944727

申请日：2013-07-17

Applicant: STMicroelectronics S.r.l.

Inventor： Andrea PALEARI ,  Giuseppe CROCE

IPC: H01L29/78 ,  H01L29/66

CPC classification number: H01L21/76895 ,  H01L21/743 ,  H01L21/76897 ,  H01L21/823418 ,  H01L29/0653 ,  H01L29/0657 ,  H01L29/1095 ,  H01L29/41758 ,  H01L29/41766 ,  H01L29/41775 ,  H01L29/42368 ,  H01L29/66477 ,  H01L29/66696 ,  H01L29/66704 ,  H01L29/66712 ,  H01L29/7802 ,  H01L29/7825

Abstract: An embodiment of a MOS transistor includes a layer of semiconductor material, drain regions having a first conductivity type alternately formed in the layer with body regions having a second conductivity type, a first insulating layer disposed over the surface of the layer of semiconductor material, at least one gate-precursor region of conductive material disposed over the first insulating layer, a second insulating layer disposed over the first insulating layer and the gate-precursor region, a third insulating layer disposed over the second insulating layer, at least one source opening formed by removing overlapping portions of the second insulating layer, the third insulating layer, the gate-precursor region, and by at least partially removing a corresponding portion of the first insulating layer. The embodiment may also include at least one source-precursor region extending into the layer of semiconductor material from a surface portion below the at least one source opening.

Abstract translation: MOS晶体管的实施例包括半导体材料层，具有交替形成在具有第二导电类型的主体区域的层中的第一导电类型的漏极区域，设置在半导体材料层的表面上的第一绝缘层， 设置在所述第一绝缘层上的至少一个导电材料的栅极 - 前体区域，设置在所述第一绝缘层和所述栅极 - 前体区域之上的第二绝缘层，设置在所述第二绝缘层上的第三绝缘层，形成的至少一个源极开口 通过去除第二绝缘层，第三绝缘层，栅极 - 前体区域的重叠部分，并且至少部分去除第一绝缘层的相应部分。 该实施例还可以包括从至少一个源极开口下方的表面部分延伸到半导体材料层中的至少一个源极 - 前体区域。