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公开(公告)号：EP1121752A4
公开(公告)日：2003-05-21
申请号：EP99953173
申请日：1999-10-14
Applicant: DELSYS PHARMACEUTICAL CORP
Inventor： SUN HOI CHEONG , DESAI NITIN V , ROACH WILLIAM R , LUDINGTON DAVID N , PLETCHER TIMOTHY A , KELLER DAVID , LANG FRANK B , SOUTHGATE PETER D , MCGINN JOSEPH T
IPC: H01L21/683 , H02N13/00
CPC classification number: H01L21/6833 , H02N13/00
Abstract: Provided is an electrostatic sensing chuck for attracting particles to a portion of a particle contact surface near a deposition electrode, the electrostatic sensing chuck comprising a pixel comprising: a deposition electrode (DE) for selectively establishing an attraction field (Ea) at the particle contact surface; a shield electrode (SE) oppositely biased with respect to the deposition electrode; a charge sensing circuit to measure charge accumulated on each of the deposition electrode and the shield electrode, wherein the charge sensing circuit subtracts a second charge it senses at the shield electrode from a first charge it senses at the deposition electrode, thereby determining accumulated charge at the deposition electrode balanced by accumulated charge at the shield electrode.
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公开(公告)号：CA2346240A1
公开(公告)日：2000-04-20
申请号：CA2346240
申请日：1999-10-14
Applicant: DELSYS PHARMACEUTICAL CORP
Inventor： PLETCHER TIMOTHY A , KELLER DAVID , SUN HOI CHEONG , LANG FRANK B , ROACH WILLIAM R , SOUTHGATE PETER D , LUDINGTON DAVID N , DESAI NITIN V , MCGINN JOSEPH T
IPC: H01L21/683 , H02N13/00
Abstract: Provided is an electrostatic sensing chuck for attracting particles to a portion of a particle contact surface near a deposition electrode, the electrostatic sensing chuck comprising a pixel comprising: a deposition electrode (DE) for selectively establishing an attraction field (Ea) at the particle contact surface; a shield electrode (SE) oppositely biased with respect to the deposition electrode; a charge sensing circuit to measure charge accumulated on each of the deposition electrode and the shield electrode, wherein the charge sensing circuit subtracts a second charge it senses at the shield electrode from a first charge it senses at the depositi on electrode, thereby determining accumulated charge at the deposition electrod e balanced by accumulated charge at the shield electrode.
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公开(公告)号：PT102921B
公开(公告)日：2004-03-31
申请号：PT10292103
申请日：2003-03-11
Applicant: DELSYS PHARMACEUTICAL CORP
Inventor： PLETCHER TIMOTHY A , SUN HOI CHEONG STEVE
Abstract: The present invention is directed to electrostatic chucks, methods for their use, the electrostatic deposition of objects, such as particles in a dry powder, onto recipient substrates, and the recipient substrates themselves that have been subjected to electrostatic deposition. In one aspect, the present invention provides an electrostatic chuck for electrostatically attracting an object or objects wherein the object is used in chemical or pharmaceutical assaying or manufacturing. The objects can be pharmaceutical substrates, for example, such as a pharmaceutical tablet. Additional embodiments of the invention provide chucks and their use to electrostatically attract particles, such as a pharmaceutically active ingredient, to a substrate, such as a tablet. In one aspect, the electrostatic chuck comprises a floating electrode, and is used to selectively attract particles to a substrate above the floating electrode, thereby providing for charge imaging for the deposition of particles in a selected image. Additionally, the invention provides comprising a sensing electrode, optionally for use with an electrostatic chuck, for sensing the number of particles attracted to the objects on the chuck or other substrate, thereby providing for deposition of an accurate amount of particles. Furthermore, the present invention provides objects having selected areas in which particles are applied to the object via electrostatic means.
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公开(公告)号：AU6516799A
公开(公告)日：2000-05-01
申请号：AU6516799
申请日：1999-10-14
Applicant: DELSYS PHARMACEUTICAL CORP
Inventor： SUN HOI CHEONG , DESAI NITIN V , ROACH WILLIAM R , LUDINGTON DAVID N , PLETCHER TIMOTHY A , KELLER DAVID , LANG FRANK B , SOUTHGATE PETER D , MCGINN JOSEPH T
IPC: H01L21/683 , H02N13/00
Abstract: Provided is an electrostatic sensing chuck for attracting particles to a portion of a particle contact surface near a deposition electrode, the electrostatic sensing chuck comprising a pixel comprising: a deposition electrode (DE) for selectively establishing an attraction field (Ea) at the particle contact surface; a shield electrode (SE) oppositely biased with respect to the deposition electrode; a charge sensing circuit to measure charge accumulated on each of the deposition electrode and the shield electrode, wherein the charge sensing circuit subtracts a second charge it senses at the shield electrode from a first charge it senses at the deposition electrode, thereby determining accumulated charge at the deposition electrode balanced by accumulated charge at the shield electrode.
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Patent Agency Ranking
公开(公告)号：PT102922A
公开(公告)日：2003-07-31
申请号：PT10292203
申请日：2003-03-11
Applicant: DELSYS PHARMACEUTICAL CORP
Inventor： PLETCHER TIMOTHY A , SUN HOI CHEONG STEVE
Abstract: The present invention is directed to electrostatic chucks, methods for their use, the electrostatic deposition of objects, such as particles in a dry powder, onto recipient substrates, and the recipient substrates themselves that have been subjected to electrostatic deposition. In one aspect, the present invention provides an electrostatic chuck for electrostatically attracting an object or objects wherein the object is used in chemical or pharmaceutical assaying or manufacturing. The objects can be pharmaceutical substrates, for example, such as a pharmaceutical tablet. Additional embodiments of the invention provide chucks and their use to electrostatically attract particles, such as a pharmaceutically active ingredient, to a substrate, such as a tablet. In one aspect, the electrostatic chuck comprises a floating electrode, and is used to selectively attract particles to a substrate above the floating electrode, thereby providing for charge imaging for the deposition of particles in a selected image. Additionally, the invention provides comprising a sensing electrode, optionally for use with an electrostatic chuck, for sensing the number of particles attracted to the objects on the chuck or other substrate, thereby providing for deposition of an accurate amount of particles. Furthermore, the present invention provides objects having selected areas in which particles are applied to the object via electrostatic means.
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公开(公告)号：AU752391B2
公开(公告)日：2002-09-19
申请号：AU6516799
申请日：1999-10-14
Applicant: DELSYS PHARMACEUTICAL CORP
Inventor： SUN HOI CHEONG , DESAI NITIN V , ROACH WILLIAM R , LUDINGTON DAVID N , PLETCHER TIMOTHY A , KELLER DAVID , LANG FRANK B , SOUTHGATE PETER D , MCGINN JOSEPH T
IPC: H01L21/683 , H02N13/00
Abstract: Provided is an electrostatic sensing chuck for attracting particles to a portion of a particle contact surface near a deposition electrode, the electrostatic sensing chuck comprising a pixel comprising: a deposition electrode (DE) for selectively establishing an attraction field (Ea) at the particle contact surface; a shield electrode (SE) oppositely biased with respect to the deposition electrode; a charge sensing circuit to measure charge accumulated on each of the deposition electrode and the shield electrode, wherein the charge sensing circuit subtracts a second charge it senses at the shield electrode from a first charge it senses at the deposition electrode, thereby determining accumulated charge at the deposition electrode balanced by accumulated charge at the shield electrode.
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公开(公告)号：HU0104915A2
公开(公告)日：2002-04-29
申请号：HU0104915
申请日：1999-10-14
Applicant: DELSYS PHARMACEUTICAL CORP
Inventor： DESAI NITIN V , KELLER DAVID , LANG FRANK B , MCGINN JOSEPH T , NGTON DAVID N , PLETCHER TIMOTHY A , ROACH WILLIAM R , SOUTHGATE PETER D , SUN HOI CHEONG
IPC: H01L21/683 , H02N13/00
Abstract: Provided is an electrostatic sensing chuck for attracting particles to a portion of a particle contact surface near a deposition electrode, the electrostatic sensing chuck comprising a pixel comprising: a deposition electrode (DE) for selectively establishing an attraction field (Ea) at the particle contact surface; a shield electrode (SE) oppositely biased with respect to the deposition electrode; a charge sensing circuit to measure charge accumulated on each of the deposition electrode and the shield electrode, wherein the charge sensing circuit subtracts a second charge it senses at the shield electrode from a first charge it senses at the deposition electrode, thereby determining accumulated charge at the deposition electrode balanced by accumulated charge at the shield electrode.
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公开(公告)号：PT102922B
公开(公告)日：2004-03-31
申请号：PT10292203
申请日：2003-03-11
Applicant: DELSYS PHARMACEUTICAL CORP
Inventor： PLETCHER TIMOTHY A , SUN HOI CHEONG STEVE
Abstract: The present invention is directed to electrostatic chucks, methods for their use, the electrostatic deposition of objects, such as particles in a dry powder, onto recipient substrates, and the recipient substrates themselves that have been subjected to electrostatic deposition. In one aspect, the present invention provides an electrostatic chuck for electrostatically attracting an object or objects wherein the object is used in chemical or pharmaceutical assaying or manufacturing. The objects can be pharmaceutical substrates, for example, such as a pharmaceutical tablet. Additional embodiments of the invention provide chucks and their use to electrostatically attract particles, such as a pharmaceutically active ingredient, to a substrate, such as a tablet. In one aspect, the electrostatic chuck comprises a floating electrode, and is used to selectively attract particles to a substrate above the floating electrode, thereby providing for charge imaging for the deposition of particles in a selected image. Additionally, the invention provides comprising a sensing electrode, optionally for use with an electrostatic chuck, for sensing the number of particles attracted to the objects on the chuck or other substrate, thereby providing for deposition of an accurate amount of particles. Furthermore, the present invention provides objects having selected areas in which particles are applied to the object via electrostatic means.
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公开(公告)号：PT102921A
公开(公告)日：2003-07-31
申请号：PT10292103
申请日：2003-03-11
Applicant: DELSYS PHARMACEUTICAL CORP
Inventor： PLETCHER TIMOTHY A , SUN HOI CHEONG STEVE
Abstract: The present invention is directed to electrostatic chucks, methods for their use, the electrostatic deposition of objects, such as particles in a dry powder, onto recipient substrates, and the recipient substrates themselves that have been subjected to electrostatic deposition. In one aspect, the present invention provides an electrostatic chuck for electrostatically attracting an object or objects wherein the object is used in chemical or pharmaceutical assaying or manufacturing. The objects can be pharmaceutical substrates, for example, such as a pharmaceutical tablet. Additional embodiments of the invention provide chucks and their use to electrostatically attract particles, such as a pharmaceutically active ingredient, to a substrate, such as a tablet. In one aspect, the electrostatic chuck comprises a floating electrode, and is used to selectively attract particles to a substrate above the floating electrode, thereby providing for charge imaging for the deposition of particles in a selected image. Additionally, the invention provides comprising a sensing electrode, optionally for use with an electrostatic chuck, for sensing the number of particles attracted to the objects on the chuck or other substrate, thereby providing for deposition of an accurate amount of particles. Furthermore, the present invention provides objects having selected areas in which particles are applied to the object via electrostatic means.
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