Patents Represented by Attorney Kathleen Anne Tobin
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Patent number: 5929560Abstract: A field emission display (100) includes a dielectric layer (132) having a plurality of emitter wells (134), a plurality of electron emitters (136) disposed one each within the plurality of emitter wells (134), a plurality of conductive rows (138, 140, 142) disposed on the dielectric layer (132) and having sacrificial portions (154), an ion shield (139) disposed on the dielectric layer (132) and spaced apart from the sacrificial portions (154) of the plurality of conductive rows (138, 140, 142), and an anode (121) opposing the plurality of electron emitters (136) and defining a projected area (122) at the plurality of conductive rows (138, 140, 142). The sacrificial portions (154) of the plurality of conductive rows (138, 140, 142) extend beyond the projected area (122) of the anode (121).Type: GrantFiled: March 6, 1998Date of Patent: July 27, 1999Assignee: Motorola, Inc.Inventors: Johann Trujillo, Chenggang Xie, Sung P. Pack, Rodolfo Lucero, Carl R. Hagen, Lawrence N. Dworsky
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Patent number: 5844361Abstract: A field emission display (100, FIG. 1) having a stabilized phosphor (110, FIG. 1) includes a cathode plate (130, FIG. 1) having a plurality of field emitters (160, FIG. 1), an anode plate (120, FIG. 1) opposing the cathode plate (130, FIG. 1), and a stabilized sulfide phosphor disposed on the anode plate (120, FIG. 1) to receive electrons from the plurality of field emitters (160, FIG. 1). The stabilized sulfide phosphor includes a sulfide phosphor core containing vacuum-unstable sulfur and a stabilized surface made from a more thermodynamically stable material, which is more thermodynamically stable against outgassing than the vacuum-unstable sulfur of the sulfide phosphor core. The stabilized phosphor (110, FIG.Type: GrantFiled: December 13, 1996Date of Patent: December 1, 1998Assignee: Motorola, Inc.Inventors: Ronald O. Petersen, Troy A. Trottier
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Patent number: 5837331Abstract: An amorphous multi-layered structure (100, 200) is formed by a method including the steps of: i) positioning a deposition substrate (101) in a physical vapor deposition apparatus (300, 400, 500) ii) ionizing a precursor of a multi-phase material within the physical vapor deposition apparatus (300, 400, 500) iv) modulating the total ion impinging energy of the ions to deposit layers having predetermined properties corresponding to the total ion impinging energy values.Type: GrantFiled: March 13, 1996Date of Patent: November 17, 1998Assignee: Motorola, Inc.Inventors: Eric P. Menu, John Song, Bernard F. Coll
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Patent number: 5821685Abstract: A display (300, 400) includes a face plate (40, 60) having an inner surface, a back plate (44, 64) having an inner surface opposing the inner surface of the face plate (40, 60), an electron source (48, 68) opposing the inner surface of the face plate (40, 60), and a phosphor (49, 72, 70) disposed on the face plate (40, 60). The phosphor (49, 72, 70) includes an electron-excitable UV-emitting material (52, 72) and a UV-excitable light-emitting phosphor (50, 70). The UV-excitable light-emitting phosphor (50, 70) is disposed to receive UV radiation emitted by the electron-excitable UV-emitting material (52, 72). The electron-excitable UV-emitting material (52, 72) includes a sol-gel product formed using sol-gel techniques.Type: GrantFiled: January 10, 1997Date of Patent: October 13, 1998Assignee: Motorola, Inc.Inventor: Ronald O. Peterson
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Patent number: 5821132Abstract: A method for fabricating a diamond-like carbon field emission device (300, 800) includes the steps of: (i) forming on a column conductor (330, 830) a ballast layer (364), (ii) forming on the ballast layer (364), in registration with a central well region (332, 832) of the column conductor (330, 830), a surface emitter (370, 870) made from diamond-like carbon, (iii) forming on the ballast layer (364) and surface emitter (370, 870) a field shaping layer (374), (iv) pattering the ballast layer (364) and the field shaping layer (374) to form a ballast (365) and field shaper layer (377) having opposed edges which, with the opposed edges of the column conductor (330, 830), define smooth, continuous surfaces (371, 871), (v) depositing a blanket dielectric layer (341), and (vi) forming an emission well (360, 860) above the central well region (332, 832) of the column conductor (330, 830).Type: GrantFiled: August 18, 1997Date of Patent: October 13, 1998Assignee: Motorola, Inc.Inventors: John Song, Thomas Nilsson
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Patent number: 5811927Abstract: A method for affixing a plurality of spacers (102) within a field emission display (160) is disclosed. The method includes the steps of: (i) providing a plurality of members (104), (ii) coating an edge (106) of each of the plurality of members (104) with a metal to provide a bonding layer (108), (iii) forming a metallic bonding pad (132) on the inner surface of an anode (120) to provide a modified anode (130), (iv) affixing a plurality of metallic compliant members (112) to the bonding layer (108) by using ball bonding techniques, and (v) affixing the metallic compliant members (112) to the metallic bonding pad (132), while positioning the spacer (102) perpendicularly with respect to the modified anode (130), by using thermocompression metal bonding techniques.Type: GrantFiled: June 21, 1996Date of Patent: September 22, 1998Assignee: Motorola, Inc.Inventors: Clifford L. Anderson, Curtis D. Moyer
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Patent number: 5801486Abstract: A high frequency field emission device (200, 400, 500, 600) includes a cathode (210, 410, 563, 610), a field emissive film (260, 460, 560, 660) formed on the cathode (210, 410, 563, 610), an anode (220, 420, 520, 620) spaced from the field emissive film (260, 460, 560, 660), and a control electrode (250, 450, 550, 650, 655) disposed between the anode (220, 420, 520, 620) and cathode (210, 410, 563, 610) for modulating or switching electron emission from the field emissive film (260, 460, 560, 660) according to a high frequency input signal signal.Type: GrantFiled: October 31, 1996Date of Patent: September 1, 1998Assignee: Motorola, Inc.Inventors: Scott V. Johnson, James E. Jaskie
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Patent number: 5789848Abstract: A field emission display (100, 200, 300) and a method of making the same are disclosed. The field emission display (100, 200, 300) includes an anode (110, 210, 310) having a plurality of cathodoluminescent deposits (120, 220, 320), a back plate (185, 285, 385) including a cathode (130, 230, 330) having a plurality of field emitters (140, 240, 340) and being affixed to a cathode reinforcement member (170, 270, 370), and a plurality of side members (150, 250, 350) disposed between the anode (110, 210, 310) and the cathode (130, 230,330) and hermetically affixed thereto. The thicknesses of the anode (110, 210, 310) and the back plate (185, 285, 385) are sufficient to provide the structural support necessary to maintain the mechanical integrity of the field emission display (100, 200, 300).Type: GrantFiled: August 2, 1996Date of Patent: August 4, 1998Assignee: Motorola, Inc.Inventors: Lawrence N. Dworsky, Dean Barker, James E. Jaskie, Ronald O. Petersen, Robert T. Smith
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Patent number: 5760535Abstract: A field emission device (200, 300, 400, 500) includes a supporting substrate (210, 310, 410, 510), a cathode (215, 315, 415, 515) formed thereon, a plurality of electron emitters (270, 370, 470, 570) and a plurality of gate extraction electrodes (250, 350, 450, 550) proximately disposed to the plurality of electron emitters (270, 370, 470, 570) for effecting electron emission therefrom, a major dielectric surface (248, 348, 448, 548) disposed between the plurality of gate extraction electrodes (250, 350, 450, 550), a charge dissipation layer (252, 352, 452, 552) formed on the major dielectric surface (248, 348, 448, 548), and an anode (280, 380, 480, 580) spaced from the gate extraction electrodes (250, 350, 450, 550).Type: GrantFiled: October 31, 1996Date of Patent: June 2, 1998Assignee: Motorola, Inc.Inventors: Curtis D. Moyer, John Song, James E. Jaskie, Lawrence N. Dworsky, Scott K. Ageno, Robert P. Nee
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Patent number: 5750188Abstract: A method for forming a thin film (220) of luminescent zinc oxide includes the steps of: (i) providing a mixture (170) of powdered zinc oxide and powdered graphite, (ii) providing a substrate (140) at a distance of about 9 millimeters from the mixture (170), (iii) disposing the mixture (170) and substrate (140) within an apparatus (100) that provides a confined environment having a partial pressure of oxygen of about 0.21 atmospheres, (iv) heating the mixture (170) to a temperature of about 850 degrees Celsius, and (v) establishing a temperature gradient between the substrate (140) and the mixture (170) of about 15 degrees, the temperature of the substrate (140) being less than the temperature of the mixture (170).Type: GrantFiled: August 29, 1996Date of Patent: May 12, 1998Assignee: Motorola, Inc.Inventor: Eric P. Menu