Patents by Inventor David Ward Brown
David Ward Brown has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 9896758Abstract: A physical vapor deposition (PVD) chamber for depositing a transparent and clear hydrogenated carbon, e.g., hydrogenated diamond-like carbon, film. A chamber body is configured for maintaining vacuum condition therein, the chamber body having an aperture on its sidewall. A plasma cage having an orifice is attached to the sidewall, such that the orifice overlaps the aperture. Two sputtering targets are situated on cathodes inside the plasma cage and are oriented opposite each other and configured to sustain plasma there-between and confined inside the plasma cage. The plasma inside the cage sputters material from the targets, which then passes through the orifice and aperture and lands on the substrate. The substrate is moved continuously in a pass-by fashion during the process.Type: GrantFiled: February 14, 2017Date of Patent: February 20, 2018Assignee: INTEVAC, INC.Inventors: David Fang Wei Chen, David Ward Brown, Charles Liu, Samuel D. Harkness, IV
-
Publication number: 20170152592Abstract: A physical vapor deposition (PVD) chamber for depositing a transparent and clear hydrogenated carbon, e.g., hydrogenated diamond-like carbon, film. A chamber body is configured for maintaining vacuum condition therein, the chamber body having an aperture on its sidewall. A plasma cage having an orifice is attached to the sidewall, such that the orifice overlaps the aperture. Two sputtering targets are situated on cathodes inside the plasma cage and are oriented opposite each other and configured to sustain plasma there-between and confined inside the plasma cage. The plasma inside the cage sputters material from the targets, which then passes through the orifice and aperture and lands on the substrate. The substrate is moved continuously in a pass-by fashion during the process.Type: ApplicationFiled: February 14, 2017Publication date: June 1, 2017Inventors: David Fang Wei Chen, David Ward Brown, Charles Liu, Samuel D. Harkness, IV
-
Patent number: 9605340Abstract: A physical vapor deposition (PVD) chamber for depositing a transparent and clear hydrogenated carbon, e.g., hydrogenated diamond-like carbon, film. A chamber body is configured for maintaining vacuum condition therein, the chamber body having an aperture on its sidewall. A plasma cage having an orifice is attached to the sidewall, such that the orifice overlaps the aperture. Two sputtering targets are situated on cathodes inside the plasma cage and are oriented opposite each other and configured to sustain plasma there-between and confined inside the plasma cage. The plasma inside the cage sputters material from the targets, which then passes through the orifice and aperture and lands on the substrate. The substrate is moved continuously in a pass-by fashion during the process.Type: GrantFiled: July 5, 2013Date of Patent: March 28, 2017Assignee: INTEVAC, INC.Inventors: David Fang Wei Chen, David Ward Brown, Charles Liu, Samuel D. Harkness, IV
-
Publication number: 20160268110Abstract: A sputtering system having a processing chamber with an inlet port and an outlet port, and a sputtering target positioned on a wall of the processing chamber. A movable magnet arrangement is positioned behind the sputtering target and reciprocally slides behinds the target. A conveyor continuously transports substrates at a constant speed past the sputtering target, such that at any given time, several substrates face the target between the leading edge and the trailing edge. The movable magnet arrangement slides at a speed that is at least several times faster than the constant speed of the conveyor. A rotating zone is defined behind the leading edge and trailing edge of the target, wherein the magnet arrangement decelerates when it enters the rotating zone and accelerates as it reverses direction of sliding within the rotating zone.Type: ApplicationFiled: April 25, 2016Publication date: September 15, 2016Inventors: David Ward Brown, Vinay Shah, Terry Pederson, Terry Bluck
-
Publication number: 20160133445Abstract: A system for depositing material from a target onto substrates, comprising a processing chamber; a sputtering target having length L and having highly magnetic sputtering material provided on front surface thereof a magnet assembly operable to reciprocally scan across the length L in close proximity to rear surface of the target and the magnet assembly comprises: a back plate made of magnetic material; a first group of magnets arranged in a single line central to the back plate and having a first pole positioned to face the rear surface of the target; and, a second group of magnets provided around periphery of the back plate so as to surround the first group of magnets, the second group of magnets having a second pole, opposite the first pole, positioned to face the rear surface of the target.Type: ApplicationFiled: May 29, 2014Publication date: May 12, 2016Applicant: Intevac, Inc.Inventors: David Ward Brown, Terry Bluck
-
Publication number: 20160023941Abstract: A protective coating on a front surface of a glass, by forming a diamond-like coating over the front surface of the glass; performing passive sputtering to form a protective layer directly on the diamond-like coating; performing reactive sputtering to form an adhesion layer directly on the protective layer; forming an anti-finger print layer directly over the adhesion layer.Type: ApplicationFiled: July 21, 2015Publication date: January 28, 2016Inventors: David Ward Brown, Charles Liu, Jun Xie
-
Publication number: 20150235824Abstract: A system for depositing material from a target onto substrates, comprising a processing chamber; a sputtering target having length L and having highly magnetic sputtering material provided on front surface thereof a magnet assembly operable to reciprocally scan across the length L in close proximity to rear surface of the target and the magnet assembly comprises: a back plate made of magnetic material; a first group of magnets arranged in a single line central to the back plate and having a first pole positioned to face the rear surface of the target; and, a second group of magnets provided around periphery of the back plate so as to surround the first group of magnets, the second group of magnets having a second pole, opposite the first pole, positioned to face the rear surface of the target.Type: ApplicationFiled: May 29, 2014Publication date: August 20, 2015Applicant: Intevac, Inc.Inventors: David Ward Brown, Terry Bluck
-
Publication number: 20140102888Abstract: A deposition system is provided, where conductive targets of similar composition are situated opposing each other. The system is aligned parallel with a substrate, which is located outside the resulting plasma that is largely confined between the two cathodes. A “plasma cage” is formed wherein the carbon atoms collide with accelerating electrons and get highly ionized. The electrons are trapped inside the plasma cage, while the ionized carbon atoms are deposited on the surface of the substrate. Since the electrons are confined to the plasma cage, no substrate damage or heating occurs. Additionally, argon atoms, which are used to ignite and sustain the plasma and to sputter carbon atoms from the target, do not reach the substrate, so as to avoid damaging the substrate.Type: ApplicationFiled: October 4, 2013Publication date: April 17, 2014Applicant: Intevac, Inc.Inventors: Samuel D. Harkness, IV, Terry Bluck, Michael A. Russak, Quang N. Tran, David Ward Brown
-
Publication number: 20140008214Abstract: A physical vapor deposition (PVD) chamber for depositing a transparent and clear hydrogenated carbon, e.g., hydrogenated diamond-like carbon, film. A chamber body is configured for maintaining vacuum condition therein, the chamber body having an aperture on its sidewall. A plasma cage having an orifice is attached to the sidewall, such that the orifice overlaps the aperture. Two sputtering targets are situated on cathodes inside the plasma cage and are oriented opposite each other and configured to sustain plasma there-between and confined inside the plasma cage. The plasma inside the cage sputters material from the targets, which then passes through the orifice and aperture and lands on the substrate. The substrate is moved continuously in a pass-by fashion during the process.Type: ApplicationFiled: July 5, 2013Publication date: January 9, 2014Inventors: David Fang Wei Chen, David Ward Brown, Charles Liu, Samuel D. Harkness, IV
-
Patent number: 6504294Abstract: A unique Hall-Current ion source apparatus is used for direct ion beam deposition of DLC coatings with hardness values greater than 10 GPa and at deposition rates greater than 10 Å per second. This ion source has a unique fluid-cooled anode with a shadowed gap through which ion sources feed gases are introduced while depositing gases are injected into the plasma beam. The shadowed gap provides a well maintained, electrically active area at the anode surface which stays relatively free of non-conductive deposits. The anode discharge region is insulatively sealed to prevent discharges from migrating into the interior of the ion source. A method is described in which a substrate is disposed within a vacuum chamber, coated with a coating of DLC or Si-DLC at a high deposition rate using a Hall-Current ion source operating on carbon-containing or carbon-containing and silicon-containing precursor gases, respectively.Type: GrantFiled: July 11, 2000Date of Patent: January 7, 2003Assignee: Morgan Chemical Products, Inc.Inventors: Leonard Joseph Mahoney, David Ward Brown, Rudolph Hugo Petrmichl
-
Patent number: 6086962Abstract: A unique Hall-Current ion source apparatus is used for direct ion beam deposition of DLC coatings with hardness values greater than 10 GPa and at deposition rates greater than 10 .ANG. per second. This ion source has a unique fluid-cooled anode with a shadowed gap through which ion sources feed gases are introduced while depositing gases are injected into the plasma beam. The shadowed gap provides a well maintained, electrically active area at the anode surface which stays relatively free of non-conductive deposits. The anode discharge region is insulatively sealed to prevent discharges from migrating into the interior of the ion source. A method is described in which a substrate is disposed within a vacuum chamber, coated with a coating of DLC or Si-DLC at a high deposition rate using a Hall-Current ion source operating on carbon-containing or carbon-containing and silicon-containing precursor gases, respectively.Type: GrantFiled: February 3, 1999Date of Patent: July 11, 2000Assignee: Diamonex, IncorporatedInventors: Leonard Joseph Mahoney, David Ward Brown, Rudolph Hugo Petrmichl
-
Patent number: 6086796Abstract: A method is provided for manufacturing a diamond-like carbon (DLC) coated optical phase-change recording medium for use with near-field optical head devices and which exhibits superior wear resistance and improved lifetime. According to the method, the surface of a composite optical phase-change media structure deposited onto a substrate is subjected to ion beam deposition of a DLC over-coat to a thickness of no greater than about 450 .ANG.. Preferably the DLC is ion beam deposited onto the phase-change recording layer at the surface of the medium structure or onto a germanium-containing adhesion-promoting interlayer to achieve the desired adhesion of the DLC to the surface of the medium structure.Type: GrantFiled: July 2, 1997Date of Patent: July 11, 2000Assignee: Diamonex, IncorporatedInventors: David Ward Brown, Edward George Thear, Leonard Joseph Mahoney, Rudolph Hugo Petrmichl
-
Highly wear-resistant thermal print heads with silicon-doped diamond-like carbon protective coatings
Patent number: 6046758Abstract: The invention provides a thermal print head with a protective coating of silicon-doped diamond-like carbon (Si-DLC) which imparts superior wear resistance, and improved lifetime. The Si-DLC is comprised of the elements C, H, Si and possibly O, N and Ar. The highly wear and abrasion-resistant Si-DLC diamond-like carbon coating is deposited by ion-assisted plasma deposition including direct ion beam deposition and capacitive radio frequency plasma deposition, from carbon-containing and silicon-containing precursor gases consisting of hydrocarbon, silane, organosilane, organosilazane and organo-oxysilicon compounds, or mixtures thereof. The resulting Si-DLC coating has the properties of Nanoindentation hardness in the range of approximately 10 to 35 GPa, thickness in the range of approximately 0.5 to 20 micrometers, dynamic friction coefficient of less than approximately 0.2, and a silicon concentration in the range of approximately 5 atomic % to approximately 40 atomic %.Type: GrantFiled: March 9, 1999Date of Patent: April 4, 2000Assignee: Diamonex, IncorporatedInventors: David Ward Brown, Melissa Baylog, Fred M. Kimock, Bradley J. Knapp, Rudolph Hugo Petrmichl, Edward George Thear