JOHN B SAUBER
Plumbers in Millbury, MA
License number
Massachusetts 9633
Expiration Date
May 1, 2010
Type
Master Plumber
Address
Address
Millbury, MA 01527
Professional information
Integrated Current Sensor
US Patent:
6781359, Aug 24, 2004
Filed:
Sep 20, 2002
Appl. No.:
10/251007
Inventors:
Jason Stauth - Concord NH
Richard Dickinson - Concord NH
John Sauber - Millbury MA
Ray Engel - Southbridge MA
Sandra Pinelle - Nashua NH
Richard Dickinson - Concord NH
John Sauber - Millbury MA
Ray Engel - Southbridge MA
Sandra Pinelle - Nashua NH
Assignee:
Allegro Microsystems, Inc. - Worcester MA
International Classification:
G01R 1520
US Classification:
324117H, 324126
Abstract:
An integrated current sensor includes a magnetic field transducer such as a Hall effect sensor, a magnetic core, and an electrical conductor. The conductor includes features for receiving portions of the Hall effect sensor and the core and the elements are dimensioned such that little or no relative movement among the elements is possible.
Semiconductor Structures And Packaging Methods
US Patent:
6028347, Feb 22, 2000
Filed:
Dec 10, 1996
Appl. No.:
8/763046
Inventors:
John B. Sauber - Millbury MA
John A. Kowaleski - Princeton MA
Jeffrey G. Maggard - Hudson MA
John A. Kowaleski - Princeton MA
Jeffrey G. Maggard - Hudson MA
Assignee:
Digital Equipment Corporation - Maynard MA
International Classification:
H01L 2906
US Classification:
257622
Abstract:
A semiconductor structure having: semiconductor devices formed in an inner region of a semiconductor chip; a seal ring formed in the chip and disposed about the inner region; and, a plurality of trenches formed along a surface of the chip. The trenches are disposed in a corner region of the chip. A portion of the seal ring is disposed between the trenches and the inner region of the chip. The trenches are disposed along axes oblique to outer edges of the chip. A method is provided for encapsulating a semiconductor chip. The method includes the steps of: providing a semiconductor chip having active semiconductor devices in an inner region of the semiconductor chip and a seal ring in the chip about the inner region; and, forming a plurality of trenches in the chip, a portion of the seal ring being formed between the trenches and the inner region of the chip. A cover is formed having bottom portions in the trenches and on the passivation layer. In particular, the cover is formed by flowing plastic material over the passivation layer and into the trenches to fill such trenches with such plastic material.
Electronic Circuit And Method For Resetting A Magnetoresistance Element
US Patent:
8063634, Nov 22, 2011
Filed:
Jul 31, 2008
Appl. No.:
12/183106
Inventors:
John Sauber - Millbury MA, US
William P. Taylor - Amherst NH, US
William P. Taylor - Amherst NH, US
Assignee:
Allegro Microsystems, Inc. - Worcester MA
International Classification:
G01R 33/02
US Classification:
324252, 324244, 324262
Abstract:
An electronic circuit includes a primary magnetoresistance element for providing a first output signal proportional to a magnetic field. The primary magnetoresistance element has a primary maximum response axis. The primary magnetoresistance element also has a hysteresis characteristic. The electronic circuit also includes a reset conductor disposed proximate to the magnetoresistance element. The electronic circuit also includes a secondary magnetic field sensing element for providing a second output signal proportional to a magnetic field. The secondary magnetic field sensing element has a secondary maximum response axis, which, in some embodiments, is substantially perpendicular to the primary maximum response axis. In operation, the primary magnetoresistance is reset in accordance with an excessive magnetic field sensed by the secondary magnetic field sensing element.
Magnetic Field Sensors And Methods For Fabricating The Magnetic Field Sensors
US Patent:
2013026, Oct 10, 2013
Filed:
Mar 15, 2013
Appl. No.:
13/838864
Inventors:
Nirmal Sharma - Sunnyvale CA, US
Raymond W. Engel - Southbridge MA, US
Jay Gagnon - Holden MA, US
John B. Sauber - Millbury MA, US
William P. Taylor - Amherst NH, US
Elsa Kam-Lum - San Jose CA, US
Raymond W. Engel - Southbridge MA, US
Jay Gagnon - Holden MA, US
John B. Sauber - Millbury MA, US
William P. Taylor - Amherst NH, US
Elsa Kam-Lum - San Jose CA, US
Assignee:
Allegro Microsystems, Inc. - Worcester MA
International Classification:
H01L 43/12
US Classification:
438 3
Abstract:
Magnetic field sensors and associated methods of manufacturing the magnetic field sensors include molded structures to encapsulate a magnetic field sensing element and an associated die attach pad of a lead frame and to also encapsulate or form a magnet or a flux concentrator.
Magnetic Field Sensors And Methods For Fabricating The Magnetic Field Sensors
US Patent:
2013026, Oct 10, 2013
Filed:
Mar 15, 2013
Appl. No.:
13/838131
Inventors:
Nirmal Sharma - Sunnyvale CA, US
Raymond W. Engel - Southbridge MA, US
Jay Gagnon - Holden MA, US
John B. Sauber - Millbury MA, US
William P. Taylor - Amherst NH, US
Elsa Kam-Lum - San Jose CA, US
Raymond W. Engel - Southbridge MA, US
Jay Gagnon - Holden MA, US
John B. Sauber - Millbury MA, US
William P. Taylor - Amherst NH, US
Elsa Kam-Lum - San Jose CA, US
Assignee:
Allegro Microsystems, Inc. - Worcester MA
International Classification:
H01L 43/02
US Classification:
257427
Abstract:
Magnetic field sensors and associated methods of manufacturing the magnetic field sensors include molded structures to encapsulate a magnetic field sensing element and an associated die attach pad of a lead frame and to also encapsulate or form a magnet or a flux concentrator.
Methods And Apparatus For Enhanced Frequency Response Of Magnetic Sensors
US Patent:
2011013, Jun 9, 2011
Filed:
Dec 3, 2009
Appl. No.:
12/630362
Inventors:
John B. Sauber - Millbury MA, US
Assignee:
Allegro Microsystems, Inc. - Worcester MA
International Classification:
G01R 33/06
US Classification:
324251
Abstract:
Methods and apparatus for providing an integrated circuit package device, comprising a conductive leadframe, a magnetic sensor element disposed on the leadframe, wherein the leadframe includes a slot configuration to reduce eddy current flow about the magnetic sensor, the slot configuration including a first slot generally perpendicular to a second slot, wherein the first slot extends under the sensor element.
Magnetic Field Sensors And Methods For Fabricating The Magnetic Field Sensors
US Patent:
8486755, Jul 16, 2013
Filed:
Dec 5, 2008
Appl. No.:
12/328798
Inventors:
Virgil Ararao - Rutland MA, US
Nirmal Sharma - Shrewsbury MA, US
Raymond W. Engel - Southbridge MA, US
Jay Gagnon - Holden MA, US
John Sauber - Millbury MA, US
William P. Taylor - Amherst NH, US
Elsa Kam-Lum - Amherst NH, US
Nirmal Sharma - Shrewsbury MA, US
Raymond W. Engel - Southbridge MA, US
Jay Gagnon - Holden MA, US
John Sauber - Millbury MA, US
William P. Taylor - Amherst NH, US
Elsa Kam-Lum - Amherst NH, US
Assignee:
Allegro Microsystems, LLC - Worcester MA
International Classification:
H01L 21/00
US Classification:
438106, 438 3, 438126, 257378, 257702
Abstract:
Magnetic field sensors and associated methods of manufacturing the magnetic field sensors include molded structures to encapsulate a magnetic field sensing element and an associated die attach pad of a lead frame and to also encapsulate or form a magnet or a flux concentrator.
Magnetic Field Sensors And Methods For Fabricating The Magnetic Field Sensors
US Patent:
8461677, Jun 11, 2013
Filed:
Sep 23, 2011
Appl. No.:
13/241380
Inventors:
Virgil Ararao - Rutland MA, US
Nirmal Sharma - Shrewsbury MA, US
Raymond W. Engel - Southbridge MA, US
Jay Gagnon - Holden MA, US
John Sauber - Millbury MA, US
William P. Taylor - Amherst NH, US
Elsa Kam-Lum - Amherst NH, US
Nirmal Sharma - Shrewsbury MA, US
Raymond W. Engel - Southbridge MA, US
Jay Gagnon - Holden MA, US
John Sauber - Millbury MA, US
William P. Taylor - Amherst NH, US
Elsa Kam-Lum - Amherst NH, US
Assignee:
Allegro Microsystems, LLC - Worcester MA
International Classification:
H01L 23/04
US Classification:
257730, 257678, 257690, 257E23124, 257E23126
Abstract:
Magnetic field sensors and associated methods of manufacturing the magnetic field sensors include molded structures to encapsulate a magnetic field sensing element and an associated die attach pad of a lead frame and to also encapsulate or form a magnet or a flux concentrator.
Integrated Current Sensor
US Patent:
7265531, Sep 4, 2007
Filed:
Apr 26, 2004
Appl. No.:
10/831906
Inventors:
Jason Stauth - Concord NH, US
Richard Dickinson - Concord NH, US
John Sauber - Millbury MA, US
Ray Engel - Southbridge MA, US
Sandra Pinelle - Nashua NH, US
Richard Dickinson - Concord NH, US
John Sauber - Millbury MA, US
Ray Engel - Southbridge MA, US
Sandra Pinelle - Nashua NH, US
Assignee:
Allegro MicroSystems, Inc. - Worcester MA
International Classification:
G01R 15/20, G01R 33/07
US Classification:
324117H, 324126
Abstract:
An integrated current sensor includes a magnetic field transducer such as a Hall effect sensor, a magnetic core, and an electrical conductor. The conductor includes features for receiving portions of the Hall effect sensor and the core and the elements are dimensioned such that little or no relative movement among the elements is possible.