Patents by Inventor Jianping P. Yang

Jianping P. Yang 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).

  • Publication number: 20030129415
    Abstract: A method is provided for binding phosphor particles in a field emission device. The method includes applying phosphor particles to a substrate, submerging the substrate into a binder solution, and removing the substrate from the binder solution at a predetermined rate.
    Type: Application
    Filed: December 30, 2002
    Publication date: July 10, 2003
    Applicant: Micron Technology, Inc.
    Inventors: Robert Rasmussen, Jianping P. Yang
  • Publication number: 20030124247
    Abstract: A method is provided for binding phosphor particles in a field emission device. The method includes applying phosphor particles to a substrate, submerging the substrate into a binder solution, and removing the substrate from the binder solution at a predetermined rate.
    Type: Application
    Filed: December 30, 2002
    Publication date: July 3, 2003
    Applicant: Micron Technology, Inc.
    Inventors: Robert Rasmussen, Jianping P. Yang
  • Patent number: 6471842
    Abstract: In one aspect, the invention encompasses a method of fabricating a display screen. Phosphor molecules are electrophoretically deposited onto a substrate in a first solution having a first hydroxide ion concentration. The deposited phosphor molecules are then rinsed with a second solution having an hydroxide ion concentration greater than the first hydroxide ion concentration. In another aspect, the invention encompasses a method of depositing phosphor molecules over selected regions of a substrate. Conductive regions are formed over portions of a substrate while non-conductive regions are left over other portions of the substrate. Phosphor molecules are electrophoretically deposited onto the conductive regions of the substrate in a first solution having a first hydroxide ion concentration. The substrate is then rinsed with a second solution having a second hydroxide ion concentration greater than the first hydroxide ion concentration. After the rinsing, the deposited phosphor molecules are dried.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: October 29, 2002
    Assignee: Micron Technology, Inc.
    Inventor: Jianping P. Yang
  • Patent number: 6451190
    Abstract: In one aspect, phosphor molecules are electrophoretically deposited onto a substrate in a first solution having a first hydroxide ion concentration. The deposited phosphor molecules are then rinsed with a second solution having an hydroxide ion concentration greater than the first hydroxide ion concentration. In another aspect, conductive regions are formed over portions of a substrate while non-conductive regions are left over other portions of the substrate. Phosphor molecules are electrophoretically deposited onto the conductive regions of the substrate in a first solution having a first hydroxide ion concentration. The substrate is then rinsed with a second solution having a second hydroxide ion concentration. The second hydroxide ion concentration is greater than the first hydroxide ion concentration. After the rinsing, the deposited phosphor molecules are dried. In yet another aspect, the invention encompasses a method of forming an FED device.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: September 17, 2002
    Assignee: Micron Technology, Inc.
    Inventor: Jianping P. Yang
  • Patent number: 6420086
    Abstract: In one aspect, the invention includes a method of patterning a substrate. A film is formed over a substrate and comprises a plurality of individual molecules. The individual molecules comprise two ends with one of the two ends being directed toward the substrate and the other of the two ends being directed away from the substrate. Particle-adhering groups are bound to said other of the two ends of at least some of the individual molecules and a plurality of particles are adhered to the particle-adhering groups to form a mask over the substrate. The substrate is etched while the mask protects portions of the substrate. In another aspect, the invention encompasses a method of forming a field emission display. A material having a surface of exposed nitrogen-containing groups is formed over the substrate. At least one portion of the material is exposed to radiation while at least one other portion of the material is not exposed.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: July 16, 2002
    Assignee: Micron Technology, Inc.
    Inventors: Jianping P. Yang, David H. Wells, Eric J. Knappenberger
  • Publication number: 20020022374
    Abstract: In one aspect, the invention includes a method of patterning a substrate. A film is formed over a substrate and comprises a plurality of individual molecules. The individual molecules comprise two ends with one of the two ends being directed toward the substrate and the other of the two ends being directed away from the substrate. Particle-adhering groups are bound to said other of the two ends of at least some of the individual molecules and a plurality of particles are adhered to the particle-adhering groups to form a mask over the substrate. The substrate is etched while the mask protects portions of the substrate. In another aspect, the invention encompasses a method of forming a field emission display. A material having a surface of exposed nitrogen-containing groups is formed over the substrate. At least one portion of the material is exposed to radiation while at least one other portion of the material is not exposed.
    Type: Application
    Filed: January 16, 2001
    Publication date: February 21, 2002
    Inventors: Jianping P. Yang, David H. Wells, Eric J. Knappenberger
  • Patent number: 6207578
    Abstract: In one aspect, the invention includes a method of patterning a substrate. A film is formed over a substrate and comprises a plurality of individual molecules. The individual molecules comprise two ends with one of the two ends being directed toward the substrate and the other of the two ends being directed away from the substrate. Particle-adhering groups are bound to said other of the two ends of at least some of the individual molecules and a plurality of particles are adhered to the particle-adhering groups to form a mask over the substrate. The substrate is etched while the mask protects portions of the substrate. In another aspect, the invention encompasses a method of forming a field emission display. A material having a surface of exposed nitrogen-containing groups is formed over the substrate. At least one portion of the material is exposed to radiation while at least one other portion of the material is not exposed.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: March 27, 2001
    Assignee: Micron Technology, Inc.
    Inventors: Jianping P. Yang, David H. Wells, Eric J. Knappenberger
  • Patent number: 6203681
    Abstract: In one aspect, the invention encompasses a method of fabricating a display screen. Phosphor molecules are electrophoretically deposited onto a substrate in a first solution having a first hydroxide ion concentration. The deposited phosphor molecules are then rinsed with second solution having an hydroxide ion concentration greater than the first hydroxide ion concentration. In another aspect, the invention encompasses a method of depositing phosphor molecules over selected regions of a substrate. Conductive regions are formed over portions of a substrate while non-conductive regions are left over other portions of the substrate. Phosphor molecules are electrophoretically deposited onto the conductive regions of the substrate in a first solution having a first hydroxide ion concentration. The substrate is then rinsed with a second solution having a second hydroxide ion concentration. The second hydroxide ion concentration is greater than the first hydroxide ion concentration.
    Type: Grant
    Filed: May 7, 1999
    Date of Patent: March 20, 2001
    Assignee: Micron Technology, Inc.
    Inventor: Jianping P. Yang
  • Patent number: 6137216
    Abstract: Luminescent phosphor compositions comprising thulium doped lanthanum aluminates are disclosed. In one aspect of the invention, a luminescent phosphor composition comprises:(La.sub.1-x-z Tm.sub.x Al.sub.y R.sub.z O.sub.3/2(y+1)-m/2) Cl.sub.mwhere R is at least one of Tb.sup.3+, Ga.sup.3+, and Ce.sup.3+ ; 0.001.ltoreq.x.ltoreq.0.05; 0.5.ltoreq.y.ltoreq.3; 0.ltoreq.z.ltoreq.0.05; and 0.ltoreq.m.ltoreq.0.05. In another aspect, a luminescent phosphor composition consists essentially of such material. Such materials are advantageously used in displays such as field emission displays, and particularly high electron density field emission and other displays.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: October 24, 2000
    Assignee: Micron Technology, Inc.
    Inventor: Jianping P. Yang