公开(公告)号：US20150035091A1

公开(公告)日：2015-02-05

申请号：US14341458

申请日：2014-07-25

Applicant: STMicroelectronics S.r.I.

Inventor： Federico Giovanni Ziglioli

IPC: B81B3/00 ,  B81C1/00

CPC classification number: B81B3/0021 ,  B81B2201/0257 ,  B81C1/00269 ,  B81C2203/0118 ,  B81C2203/0154 ,  H01L23/3142 ,  H01L24/97 ,  H01L25/50 ,  H01L2924/181 ,  H04R19/005 ,  H01L2924/00012

Abstract: In order to manufacture a packaged device, a die having a sensitive region is bonded to a support, and a packaging mass of moldable material is molded on the support so as to surround the die. During molding of the packaging mass, a chamber is formed, which faces the sensitive region and is connected to the outside environment. To this end, a sacrificial mass of material that may evaporate/sublimate is dispensed on the sensitive region; the packaging mass is molded on the sacrificial mass; a through hole is formed in the packaging mass to extend as far as the sacrificial mass; the sacrificial mass is evaporated/sublimated through the hole.

Abstract translation: 为了制造包装的装置，将具有敏感区域的模具接合到支撑体上，并且将可模制材料的包装物质模制在支撑件上以包围模具。 在包装物料的成型期间，形成面对敏感区域并连接到外部环境的室。 为此，可以在敏感区域上分配可蒸发/升华的材料的牺牲物质; 包装质量被模制在牺牲块上; 在包装物质中形成一个通孔以延伸至牺牲块; 牺牲物质通过孔蒸发/升华。

公开(公告)号：US20150001651A1

公开(公告)日：2015-01-01

申请号：US14316504

申请日：2014-06-26

Applicant: STMicroelectronics S.r.I.

Inventor： Dino Faralli ,  Paolo Ferrari ,  Laura Maria Castoldi

IPC: B81B3/00 ,  B81C1/00 ,  B81C3/00

CPC classification number: B81B3/0021 ,  B81B7/0016 ,  B81B7/0058 ,  B81B2201/0264 ,  B81B2203/0127 ,  B81B2207/115 ,  B81C1/00158 ,  B81C3/00 ,  B81C2203/0118 ,  H01L2224/48091 ,  H01L2224/48145 ,  H01L2924/00014 ,  H01L2924/00012

Abstract: A MEMS device wherein a die of semiconductor material has a first face and a second face. A diaphragm is formed in or on the die and faces the first surface. A cap is fixed to the first face of the die and has a hole forming a fluidic path connecting the diaphragm with the outside world. A closing region, for example a support, a second cap, or another die, is fixed to the second face of the die. The closing region forms, together with the die and the cap, a stop structure configured to limit movements of the suspended region in a direction perpendicular to the first face.

Abstract translation: 一种MEMS器件，其中半导体材料的管芯具有第一面和第二面。 在模具中或模具上形成隔膜，并且面对第一表面。 帽固定在模具的第一面上，并且具有形成连接隔膜与外界的流体路径的孔。 关闭区域，例如支撑件，第二盖子或另一个模具，被固定到模具的第二面。 闭合区域与模具和盖一起形成止挡结构，其被构造成限制悬挂区域在垂直于第一面的方向上的移动。

公开(公告)号：US20140355995A1

公开(公告)日：2014-12-04

申请号：US14282394

申请日：2014-05-20

Applicant: STMICROELECTRONICS S.r.I.

Inventor： Luca MAGGI ,  Antonio FINCATO ,  Salvatore Mario ROTOLO ,  Matteo Alessio TRALDI ,  Luigi VERGA ,  Mark Andrew SHAW

IPC: H04B10/40 ,  H04B10/2575

CPC classification number: H04B10/40 ,  G02B6/42 ,  G02B6/4206 ,  G02B6/4214 ,  G02B6/4246 ,  G02B6/4292 ,  H04B10/2575 ,  Y10T29/49002

Abstract: An optoelectronic device may include a package having a component for sending/receiving optical signals along a first direction, and a chip of semiconductor material housed within the package. The chip may have a main surface and a portion exposed on the main surface for sending/receiving the optical signals along a second direction different from the first direction. The optoelectronic device may further include a component for deflecting the optical signals between the first direction and the second direction, the component being mounted on the main surface.

Abstract translation: 光电子器件可以包括具有沿着第一方向发送/接收光信号的部件的封装以及容纳在封装内的半导体材料芯片。 芯片可以具有主表面和暴露在主表面上的部分，用于沿着与第一方向不同的第二方向发送/接收光信号。 光电子器件还可以包括用于在第一方向和第二方向之间偏转光信号的部件，该部件安装在主表面上。

公开(公告)号：US20140217949A1

公开(公告)日：2014-08-07

申请号：US14168171

申请日：2014-01-30

Applicant: STMicroelectronics S.r.I.

Inventor： Paolo PASCALE ,  Federico Magni ,  Ezio Galbiati ,  Giuseppe Maiocchi ,  Michele Berto Boscolo

IPC: H02P23/00

CPC classification number: H02P23/0031 ,  H02P6/14 ,  H02P23/0004

Abstract: A method of PWM regulating a motor through a half-bridge drive stage includes sampling the motor current to obtain sampled values during driving intervals or during current decay intervals, and comparing a last sampled value with a current threshold. The motor is coupled in a slow decay electrical path for the duration of a current decay interval if the last sampled value does not exceed the current threshold. Otherwise the motor is coupled in a fast decay electrical path for a portion of the duration of the current decay interval, and is coupled in the slow decay electrical path for a remaining part of the duration of the same current decay interval.

Abstract translation: 通过半桥驱动级PWM调节电动机的方法包括：在驱动间隔期间或电流衰减间隔期间对电动机电流进行采样以获得采样值，并将最后采样值与电流阈值进行比较。 如果最后一个采样值不超过当前阈值，则电机在电流衰减间隔的持续时间内以慢衰减电路连接。 否则，电动机在电流衰减区间的持续时间的一部分中以快速衰减电路连接，并且在慢衰减电路中被耦合在相同电流衰减间隔的持续时间的剩余部分中。

公开(公告)号：US20140148000A1

公开(公告)日：2014-05-29

申请号：US14166789

申请日：2014-01-28

Applicant: STMICROELECTRONICS S.r.I.

Inventor： Giacomo BARLETTA

IPC: H01L21/28

CPC classification number: H01L21/28158 ,  H01L21/28008 ,  H01L29/41766 ,  H01L29/42368 ,  H01L29/66734 ,  H01L29/7811 ,  H01L29/7813

Abstract: An embodiment for realizing a power device with trench-gate structure integrated on a semiconductor substrate, and including etching the semiconductor substrate to make a first trench having first side walls and a first bottom; and further etching said semiconductor substrate to make a second trench inside the first trench, realized in a self-aligned way and below this first trench, the first trench and the second trench defining the trench-gate structure with a bird beak-like transition profile suitable for containing a gate region.

Abstract translation: 一种用于实现集成在半导体衬底上的沟槽栅结构的功率器件的实施例，包括蚀刻半导体衬底以制造具有第一侧壁和第一底部的第一沟槽; 并且进一步蚀刻所述半导体衬底以在所述第一沟槽内部形成第二沟槽，所述第二沟槽以自对准的方式实现并且在所述第一沟槽下方，所述第一沟槽和所述第二沟槽限定所述沟槽栅极结构，所述沟槽栅极结构具有鸟嘴状过渡曲线 适合包含门区域。

公开(公告)号：US20140094944A1

公开(公告)日：2014-04-03

申请号：US14038377

申请日：2013-09-26

Applicant: STMicroelectronics S.r.I.

Inventor： Alessandro Morcelli ,  Marco Veneri

IPC: G06F17/30

CPC classification number: G06F17/3074 ,  H04H60/80 ,  H04H60/92 ,  H04J3/0632 ,  H04L7/0008 ,  H04N21/4126 ,  H04N21/41407 ,  H04N21/4325 ,  H04N21/4367 ,  H04N21/8106 ,  H04N21/8358 ,  H04R2420/07

Abstract: A method for simultaneous playback of audio tracks from digital transceiver devices, which are adapted to define a communication network. The digital devices store audio tracks to be played. One of the digital devices is actuated as a Master device (M) and the remaining N digital devices as Slave devices. The master device generates a pilot signal by selecting a pilot audio track to be played from among stored audio tracks and by adding a synchronization frequency (fS) to the pilot audio track, having an assigned value that falls out of the sound wave frequency range. The Slave devices receive a pilot portion of the pilot signal and extract the synchronization frequency and the received part of the pilot audio track. The slave devices use the pilot to identify a stored track to be played using the synchronization frequency as a sampling frequency.

Abstract translation: 一种用于从数字收发器设备同时重放音轨的方法，其适于定义通信网络。 数字设备存储要播放的音轨。 其中一个数字设备被激活为主设备（M），其余的N个数字设备作为从设备启动。 主装置通过从存储的音轨中选择要播放的导频音轨并通过将具有落在声波频率范围之外的分配值的导频音轨添加同步频率（fS）来生成导频信号。 从设备接收导频信号的导频部分并提取同步频率和导频音轨的接收部分。 从设备使用飞行员使用同步频率来识别要播放的存储的轨道作为采样频率。

公开(公告)号：US20140093089A1

公开(公告)日：2014-04-03

申请号：US14030584

申请日：2013-09-18

Applicant: STMicroelectronics S.r.I.

Inventor： Alessandro Gasparini ,  Daniele Depascalis

IPC: H04R3/00

CPC classification number: H04R3/00 ,  H04R19/013 ,  H04R29/001

Abstract: A MEMS speaker device including a membrane that forms a first capacitor and a second capacitor, respectively, with a top plate and with a bottom plate. The device includes a driving circuit that operates, during a first operating period, to move the membrane into a first position, in which the membrane is close to the bottom plate, and during a second operating period, to move the membrane into a second position, in which the membrane is close to the top plate. The device includes a testing circuit having a measuring circuit, which generates a first signal, based on a capacitance of one of the first capacitor and the second capacitor and a second signal based on a capacitance of one of the first capacitor and the second capacitor; and a comparator, which compares the first and second signals with at least one first electrical reference quantity.

Abstract translation: 一种MEMS扬声器装置，包括分别与顶板和底板形成第一电容器和第二电容器的膜。 该装置包括驱动电路，该驱动电路在第一操作期间操作以将膜移动到第一位置，其中膜靠近底板，并且在第二操作期间，将膜移动到第二位置 ，其中膜接近顶板。 该装置包括具有测量电路的测试电路，其基于第一电容器和第二电容器之一的电容产生第一信号，基于第一电容器和第二电容器之一的电容产生第二信号; 以及比较器，其将第一和第二信号与至少一个第一电参考量进行比较。

公开(公告)号：US20140084900A1

公开(公告)日：2014-03-27

申请号：US14036458

申请日：2013-09-25

Applicant: STMicroelectronics S.r.I.

Inventor： Stefano Ramorini ,  Alessandro Gasparini ,  Alberto Cattani

IPC: H02M3/155 ,  F03G5/06

CPC classification number: H02M3/155 ,  F03G5/06 ,  H01F27/40 ,  H02M1/32 ,  H02M1/4208 ,  H02M3/158 ,  H02M7/06 ,  H02M7/068 ,  H02M7/217 ,  Y02B70/126

Abstract: An energy-scavenging interface receives an input signal from a transducer and supplies an output signal to a load. A switch is connected between the transducer and a reference node, and a diode is connected between the transducer and the load. A control circuit closes the switch for a time interval to permit energy storage in the transducer. A scale copy of a peak value of stored electric current is obtained. The switch is opened when the time interval elapses and the stored energy exceeds a threshold. The stored energy is then released to supply the load through the diode. The switch remains open as long as the value of current in the output signal exceeds the value of the scaled copy of the peak value.

Abstract translation: 能量清除界面接收来自换能器的输入信号并将输出信号提供给负载。 开关连接在传感器和参考节点之间，二极管连接在传感器和负载之间。 控制电路将开关闭合一段时间间隔，以允许传感器中的能量存储。 获得存储电流的峰值的比例拷贝。 当经过时间间隔并且存储的能量超过阈值时，开关被打开。 然后释放存储的能量以通过二极管提供负载。 只要输出信号中的电流值超过峰值的缩放副本的值，开关就保持打开。

公开(公告)号：US20140077823A1

公开(公告)日：2014-03-20

申请号：US13717780

申请日：2012-12-18

Applicant: STMICROELECTRONICS S.R.I. ,  STMICROELECTRONICS ASIA PACIFIC PTE. LTD.

Inventor： Paolo Angelini ,  Giovanni Carlo Tripoli ,  Ernesto Lasalandra ,  Tommaso Ungaretti ,  Kien Beng Tan ,  Yannick Guedon ,  Dianbo Guo ,  Sze-Kwang Tan

IPC: G01R27/26

CPC classification number: G01R27/2605 ,  G06F3/0418 ,  G06F3/044

Abstract: Capacitance sensing circuits and methods are provided. The capacitance sensing circuit includes a capacitance-to-voltage converter configured to receive a signal from a capacitance to be sensed and to provide an output signal representative of the capacitance, an output chopper configured to convert the output signal of the capacitance-to-voltage converter to a sensed voltage representative of the capacitance to be sensed, an analog accumulator configured to accumulate sensed voltages during an accumulation period of NA sensing cycles and to provide an accumulated analog value, an amplifier configured to amplify the accumulated analog value, and an analog-to-digital converter configured to convert the amplified accumulated analog value to a digital value representative of the capacitance to be sensed. The analog accumulator may include a low pass filter having a frequency response to filter wideband noise.

Abstract translation: 提供电容感测电路和方法。 电容感测电路包括：电容 - 电压转换器，被配置为从要感测的电容接收信号并提供表示电容的输出信号;输出斩波器，被配置为转换电容 - 电压的输出信号 转换器到感测的电压，代表要感测的电容;模拟累加器，被配置为在NA感测周期的累积周期期间累积感测电压并提供累加的模拟值，被配置为放大所累积的模拟值的放大器和模拟 配置为将放大的累积模拟值转换为表示要感测的电容的数字值。 模拟累加器可以包括具有对滤波器宽带噪声的频率响应的低通滤波器。

公开(公告)号：US20140010374A1

公开(公告)日：2014-01-09

申请号：US13936110

申请日：2013-07-05

Applicant: STMicroelectronics S.r.I. ,  Omron Corporation

Inventor： Takashi Kasai ,  Shobu Sato ,  Yuki Uchida ,  Igino Padovani ,  Filippo David ,  Sebastiano Conti ,  Martino Zerbini ,  Luca Molinari

IPC: H04R3/00

CPC classification number: H04R3/00 ,  H01L2224/48137 ,  H01L2924/16152 ,  H04R1/086 ,  H04R19/005 ,  H04R19/016 ,  H04R31/00

Abstract: The present disclosure is directed to an acoustic transducer configured to detect a sound wave according to changes in capacitances between a vibrating electrode and a fixed electrode. At least one of the vibrating electrode and the fixed electrode being divided into a plurality of divided electrodes, and the plurality of divided electrodes outputting electrical signals. The disclosure includes a digital interface circuit coupled to the divided electrodes. The circuit includes a recombination stage, which supplies a mixed signal by combining the first digital processed signal and the second digital processed signal with a respective weight that is a function of a first level value of the first processed signal. An output stage is included, which supplies, selectively and alternatively, a first processed signal, a second processed signal, or a mixed signal.

Abstract translation: 本公开涉及一种被配置为根据振动电极和固定电极之间的电容的变化来检测声波的声学换能器。 振动电极和固定电极中的至少一个分为多个分割电极，多个分割电极输出电信号。 本公开包括耦合到分割电极的数字接口电路。 电路包括复合级，其通过将第一数字处理信号和第二数字处理信号组合为具有作为第一处理信号的第一电平值的函数的相应权重来提供混合信号。 包括输出级，其选择性地或替代地提供第一处理信号，第二处理信号或混合信号。