公开(公告)号：US20170161218A1

公开(公告)日：2017-06-08

申请号：US14960654

申请日：2015-12-07

Applicant: Allegro Microsystems, LLC

Inventor： Jesse Lapomardo ,  Craig S. Petrie ,  Matthew Regan ,  Michael C. Doogue

IPC: G06F13/36 ,  G06F13/40 ,  G06F13/42

CPC classification number: G06F13/36 ,  G06F13/4068 ,  G06F13/4282

Abstract: Described embodiments provide a device configured to be coupled to a shared bus. The device includes a magnetic field sensing element to sense a magnetic field. Upon receiving a configuration command over the shared bus, the device determines whether a parameter of the sensed magnetic field meets a predetermined criteria. If the parameter of the sensed magnetic field meets the predetermined criteria, the device responds to the configuration command by applying one or more configuration settings. Otherwise, if the parameter of the sensed magnetic field does not meet the predetermined criteria, the device ignores the configuration command.

公开(公告)号：US20170110652A1

公开(公告)日：2017-04-20

申请号：US15395083

申请日：2016-12-30

Applicant: Allegro MicroSystems, LLC

Inventor： Michael C. Doogue ,  William P. Taylor ,  Vijay Mangtani

IPC: H01L43/02 ,  H01L23/495

CPC classification number: H01L43/02 ,  B82Y25/00 ,  G01R15/08 ,  G01R15/207 ,  G01R33/02 ,  G01R33/06 ,  G01R33/07 ,  G01R33/09 ,  G01R33/093 ,  H01L23/49541 ,  H01L25/162 ,  H01L43/04 ,  H01L43/065 ,  H01L43/08 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48247 ,  H01L2924/3025 ,  H01L2924/00014 ,  H01L2924/00

Abstract: An integrated circuit can have a first substrate supporting a magnetic field sensing element and a second substrate supporting another magnetic field sensing element. The first and second substrates can be arranged in a variety of configurations. Another integrated circuit can have a first magnetic field sensing element and second different magnetic field sensing element disposed on surfaces thereof.

公开(公告)号：US20160172584A1

公开(公告)日：2016-06-16

申请号：US15049732

申请日：2016-02-22

Applicant: ALLEGRO MICROSYSTEMS, LLC

Inventor： Shaun D. Milano ,  Michael C. Doogue ,  William P. Taylor

IPC: H01L43/04 ,  G01R33/09 ,  H01L43/06 ,  H01L23/31 ,  H01L43/14 ,  H01L23/00 ,  H01L23/495 ,  G01R33/07 ,  H01L43/08

CPC classification number: H01L43/04 ,  G01R33/0029 ,  G01R33/0052 ,  G01R33/0076 ,  G01R33/07 ,  G01R33/09 ,  H01L23/3107 ,  H01L23/3142 ,  H01L23/49503 ,  H01L23/49506 ,  H01L23/49541 ,  H01L23/49575 ,  H01L24/17 ,  H01L43/02 ,  H01L43/06 ,  H01L43/065 ,  H01L43/08 ,  H01L43/12 ,  H01L43/14 ,  H01L2224/16 ,  H01L2224/16245 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/4826 ,  H01L2224/49171 ,  H01L2224/73204 ,  H01L2224/73265 ,  H01L2924/15311 ,  H01L2924/15747 ,  H01L2924/181 ,  H01L2924/30107 ,  H01L2924/3025 ,  H01L2924/00014 ,  H01L2924/00

Abstract: Methods and apparatus to provide a magnetic field sensor device including a magnetic sensor element, a die having wafer bumps, wherein the magnetic sensor element is positioned in relation to the die, and conductive leadfingers having respective portions electrically connected to the wafer bumps. In embodiments, the device includes a region about the magnetic sensor element that does not contain electrically conductive material for preventing eddy current flow.

Abstract translation: 提供包括磁传感器元件的磁场传感器装置的方法和装置，具有晶片凸块的模具，其中磁传感器元件相对于管芯定位，以及具有电连接到晶片凸块的相应部分的导电引线。 在实施例中，该装置包括围绕磁传感器元件的不包含用于防止涡流流动的导电材料的区域。

公开(公告)号：US09299915B2

公开(公告)日：2016-03-29

申请号：US14090037

申请日：2013-11-26

Applicant: ALLEGRO MICROSYSTEMS, LLC

Inventor： Shaun D. Milano ,  Michael C. Doogue ,  William P. Taylor

IPC: H01L23/00 ,  H01L43/02 ,  H01L23/495 ,  H01L23/31 ,  G01R33/00 ,  H01L43/12

CPC classification number: H01L43/04 ,  G01R33/0029 ,  G01R33/0052 ,  G01R33/0076 ,  G01R33/07 ,  G01R33/09 ,  H01L23/3107 ,  H01L23/3142 ,  H01L23/49503 ,  H01L23/49506 ,  H01L23/49541 ,  H01L23/49575 ,  H01L24/17 ,  H01L43/02 ,  H01L43/06 ,  H01L43/065 ,  H01L43/08 ,  H01L43/12 ,  H01L43/14 ,  H01L2224/16 ,  H01L2224/16245 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/4826 ,  H01L2224/49171 ,  H01L2224/73204 ,  H01L2224/73265 ,  H01L2924/15311 ,  H01L2924/15747 ,  H01L2924/181 ,  H01L2924/30107 ,  H01L2924/3025 ,  H01L2924/00014 ,  H01L2924/00

Abstract: Methods and apparatus to provide an integrated circuit package having a conductive leadframe, a non-conductive die paddle mechanically coupled to the leadframe, and a die disposed on the die paddle and electrically connected to the leadframe. With this arrangement, eddy currents are reduced near the magnetic field transducer to reduce interference with magnetic fields.

Abstract translation: 提供集成电路封装的方法和装置，其具有导电引线框架，机械耦合到引线框架的非导电管芯焊盘以及设置在管芯焊盘上并电连接到引线框架的管芯。 通过这种布置，磁场传感器附近的涡流减小，以减少对磁场的干扰。

公开(公告)号：US09172565B2

公开(公告)日：2015-10-27

申请号：US14182595

申请日：2014-02-18

Applicant: Allegro Microsystems, LLC

Inventor： Bryan Cadugan ,  Michael C. Doogue ,  Mark J. Donovan

IPC: H04B14/04 ,  H04L25/03 ,  H04L7/04

CPC classification number: H04L25/03834 ,  H04L7/042 ,  H04L67/12

Abstract: In one aspect, a system includes a master component having a communication node; and a plurality of slave components. Each slave component has a bidirectional node. The slave components are configured to each store data in response to a trigger signal received at the bidirectional node from the communication node.

Abstract translation: 一方面，系统包括具有通信节点的主组件; 和多个从属组件。 每个从属组件都有一个双向节点。 从属组件被配置为响应于在通信节点处在双向节点处接收的触发信号来存储数据。

公开(公告)号：US20150185279A1

公开(公告)日：2015-07-02

申请号：US14578813

申请日：2014-12-22

Applicant: ALLEGRO MICROSYSTEMS, LLC

Inventor： Shaun D. Milano ,  Georges El Bacha ,  Michael C. Doogue ,  William P. Taylor

IPC: G01R31/28 ,  G01R33/00

CPC classification number: G01R31/2884 ,  G01R31/2829 ,  G01R31/3187 ,  G01R33/00 ,  G01R33/0023 ,  G01R33/02 ,  G01R33/07 ,  G01R33/09 ,  G01R33/091 ,  G01R35/00 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2924/181 ,  H01L2924/00014 ,  H01L2924/00012

Abstract: Methods and apparatus to provide an integrated circuit having a magnetic sensing element and fault detection module coupled to the sensing element, the fault detection module including circuitry to detect a fault condition and to self-test operation of the circuitry for detecting the fault condition. In illustrative embodiments, a fault pin indicates the fault condition.

Abstract translation: 提供具有耦合到感测元件的磁感测元件和故障检测模块的集成电路的方法和装置，所述故障检测模块包括用于检测故障状况的电路和用于检测故障状况的电路的自检操作。 在说明性实施例中，故障引脚指示故障状况。

公开(公告)号：US20130277782A1

公开(公告)日：2013-10-24

申请号：US13918064

申请日：2013-06-14

Applicant: Allegro Microsystems, LLC

Inventor： Michael C. Doogue ,  William P. Taylor ,  Vijay Mangtani

IPC: H01L43/08

CPC classification number: H01L43/02 ,  B82Y25/00 ,  G01R15/08 ,  G01R15/207 ,  G01R33/02 ,  G01R33/06 ,  G01R33/07 ,  G01R33/09 ,  G01R33/093 ,  H01L23/49541 ,  H01L25/162 ,  H01L43/04 ,  H01L43/065 ,  H01L43/08 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48247 ,  H01L2924/3025 ,  H01L2924/00014 ,  H01L2924/00

Abstract: An integrated circuit can have a first substrate supporting a magnetic field sensing element and a second substrate supporting another magnetic field sensing element. The first and second substrates can be arranged in a variety of configurations. Another integrated circuit can have a first magnetic field sensing element and second different magnetic field sensing element disposed on surfaces thereof.

公开(公告)号：US12210040B2

公开(公告)日：2025-01-28

申请号：US17648310

申请日：2022-01-19

Applicant: Allegro MicroSystems, LLC

Inventor： Shaun D. Milano ,  Bryan Cadugan ,  Michael C. Doogue ,  Alexander Latham ,  William P. Taylor ,  Harianto Wong ,  Sundar Chetlur

IPC: G01R15/14 ,  G01R15/20 ,  G01R19/00

Abstract: Systems and methods described herein are directed towards integrating a shield layer into a current sensor to shield a magnetic field sensing element and associated circuitry in the current sensor from electrical, voltage, or electrical transient noise. In an embodiment, a shield layer may be disposed along at least one surface of a die supporting a magnetic field sensing element. The shield layer may be disposed in various arrangements to shunt noise caused by a parasitic coupling between the magnetic field sensing element and the current carrying conductor away from the magnetic field sensing element.

公开(公告)号：US10352969B2

公开(公告)日：2019-07-16

申请号：US15363285

申请日：2016-11-29

Applicant: Allegro MicroSystems, LLC

Inventor： Shaun D. Milano ,  Bryan Cadugan ,  Michael C. Doogue ,  Alexander Latham ,  William P. Taylor ,  Harianto Wong ,  Sundar Chetlur

IPC: G01R15/14 ,  G01R19/00 ,  G01R15/20

Abstract: Systems and methods described herein are directed towards integrating a shield layer into a current sensor to shield a magnetic field sensing element and associated circuitry in the current sensor from electrical, voltage, or electrical transient noise. In an embodiment, a shield layer may be disposed along at least one surface of a die supporting a magnetic field sensing element. The shield layer may be disposed in various arrangements to shunt noise caused by a parasitic coupling between the magnetic field sensing element and the current carrying conductor away from the magnetic field sensing element.

公开(公告)号：US20180340990A1

公开(公告)日：2018-11-29

申请号：US15606362

申请日：2017-05-26

Applicant: Allegro MicroSystems, LLC ,  COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES

Inventor： Alexander Latham ,  Michael C. Doogue ,  Claude Fermon ,  Xavier Du Hamel De Milly ,  Myriam Pannetier-Lecoeur

IPC: G01R33/07 ,  G01R33/00 ,  G01R33/09 ,  G01R33/30

CPC classification number: G01R33/072 ,  G01L9/007 ,  G01L13/025 ,  G01R33/0005 ,  G01R33/0017 ,  G01R33/0035 ,  G01R33/091 ,  G01R33/096 ,  G01R33/098 ,  G01R33/305

Abstract: A pressure sensor includes a chamber comprising a conductive portion and a deformable portion coupled to the conductive portion and susceptible to deformation in response to a pressure differential between an interior of the chamber and an exterior of the chamber; at least one coil responsive to an AC coil drive signal; at least one magnetic field sensing element disposed proximate to the at least one coil and to the conductive portion of the chamber and configured to generate a magnetic field signal in response to a reflected magnetic field generated by the at least one coil and reflected by the conductive portion; and a circuit coupled to the at least one magnetic field sensing element to generate an output signal of the pressure sensor indicative of the pressure differential between the interior of the chamber and the exterior of the chamber in response to the magnetic field signal.