Robert C Rasmussen

US Patent:

6361391, Mar 26, 2002

Filed:

Feb 2, 2001

Appl. No.:

09/775457

Inventors:

David A. Cathey - Boise ID
Charles M. Watkins - Meridian ID
Darryl M. Stansbury - Boise ID
James J. Hofman - Boise ID
Robert T. Rasmussen - Boise ID
Surjit S. Chadha - Meridian ID

Assignee:

Micron Technology, Inc. - Boise ID

International Classification:

H01J 924

US Classification:

445 24

Abstract:

A process is provided for forming spacers useful in large area displays. The process comprises steps of : forming bundles or boules comprising fiber strands which are held together with a binder; slicing the bundles or boules into slices; adhering the slices on an electrode plate of the display; and removing the binder. In the step of forming bundles or boules comprising fiber strands, the function of the binder is initially or fully performed by glass tubings surrounding the glass fibers. The clad glass of the envelopes etches more readily than the core glass.

US Patent:

6413577, Jul 2, 2002

Filed:

Jul 24, 1997

Appl. No.:

08/899844

Inventors:

Surjit S. Chadha - Meridian ID
Robert T. Rasmussen - Boise ID

Assignee:

Micron Technology, Inc. - Boise ID

International Classification:

C23C 1640

US Classification:

4271263, 427576, 427579, 20419212

Abstract:

A process for operating a field emission display (FED) is disclosed. The FED has a faceplate and a baseplate, and a layer of praseodymium-manganese oxide disposed between the faceplate and baseplate. The layer absorbs photons during operation of the FED, and thus provides for improved performance of the FED because, for example, stray photons do not impact the underlying circuitry of the FED.

US Patent:

6448717, Sep 10, 2002

Filed:

Jul 17, 2000

Appl. No.:

09/617199

Inventors:

Robert T. Rasmussen - Boise ID

Assignee:

Micron Technology, Inc. - Boise ID

International Classification:

H01J 162

US Classification:

3151693, 313495

Abstract:

The invention includes field emitters, field emission displays (FEDs), monitors, computer systems and methods employing the same for providing uniform electron beams from cathodes of FED devices. The apparatuses each include electron beam uniformity circuitry. The electron beam uniformity circuit provides a grid voltage, V , with a DC offset voltage sufficient to induce field emission from a cathode and a periodic signal superimposed on the DC offset voltage for varying the grid voltage at a frequency fast enough to be undetectable by the human eye. The cathodes may be of the micro-tipped or flat variety. The periodic signal may be sinusoidal with peak-to-peak voltage of between about 5 volts and about 50 volts.

US Patent:

6491559, Dec 10, 2002

Filed:

Nov 12, 1999

Appl. No.:

09/438936

Inventors:

Robert T. Rasmussen - Boise ID
David A. Cathey - Boise ID

Assignee:

Micron Technology, Inc. - Boise ID

International Classification:

H01J 924

US Classification:

445 24

Abstract:

A faceplate in a flat panel display has attachment sites made with a method that includes steps of mixing frit and photoresist to form a mixture, applying the mixture to the substrate, softbaking the substrate and mixture, and exposing and developing the resist to define adhesion sites. Spacers are then attached to the faceplate at the adhesion sites.

US Patent:

6540898, Apr 1, 2003

Filed:

Nov 9, 2001

Appl. No.:

10/010707

Inventors:

Robert T. Rasmussen - Boise ID

Assignee:

Micron Technology, Inc. - Boise ID

International Classification:

C25D 1300

US Classification:

204485, 204486, 204490, 430311, 430313

Abstract:

High resolution color displays for field emission displays are formed by applying a grille to a screen layer, the grille having a set of holes formed therein exposing areas of the screen layer. A layer of photoresist is applied to the grille and the exposed areas of the screen layer, whereby a plurality of photoresist-covered screen layer areas are defined. One set of the plurality of photoresist-covered screen layer areas is fixed, whereby a fixed set and an unfixed set are defined. The photoresist is removed from the unfixed set and a light emitting substance is deposited on the exposed screen layer area. The fixed set of photoresist is plasma etched.

US Patent:

6570322, May 27, 2003

Filed:

Nov 9, 1999

Appl. No.:

09/436967

Inventors:

Robert T. Rasmussen - Boise ID

Assignee:

Micron Technology, Inc. - Boise ID

International Classification:

H01J 162

US Classification:

313496, 313495, 313473

Abstract:

An anode screen for a field-emission-display is formed by layering light-permeable conductive material and phosphor respectively over a transparent substrate. A plurality of holes are formed in the layer of phosphor to expose corresponding regions of the conductive material. In a further embodiment, the anode screen is disposed in spaced and opposing relationship to a cathode emitter plate that comprises a plurality of electron emitters. Pixel regions of the phosphor of the anode screen correspond to regions of the phosphor opposite respective electron emitters of the plurality of electron emitters. Preferably, each pixel region of the phosphor has a number of holes spaced equally about its periphery. In the preferred embodiment, six holes delimit a hexagon shape for their respective pixel region, wherein centers of the holes provide apexes of the hexagon.

US Patent:

6590334, Jul 8, 2003

Filed:

Jan 18, 1996

Appl. No.:

08/599436

Inventors:

Robert T. Rasmussen - Boise ID
Surjit S. Chadha - Meridian ID

Assignee:

Micron Technology, Inc. - Boise ID

International Classification:

H01J 2928

US Classification:

313496, 313466

Abstract:

The present invention is directed to anode screens of field emission displays wherein the phosphors on said anode are surrounded by a black or dark matrix which reduces the threshold and operating voltages of the display.

US Patent:

6596141, Jul 22, 2003

Filed:

May 1, 2001

Appl. No.:

09/847073

Inventors:

Robert T. Rasmussen - Boise ID

Assignee:

Micron Technology, Inc. - Boise ID

International Classification:

C25D 1302

US Classification:

204490, 204485, 445 24, 445 52, 313496

Abstract:

A black matrix material for increasing resolution and contrast of field emission displays is disclosed. The black matrix material is preferably deposited by electrophoresis in the interstitial regions between phosphor pixels of the faceplate. By this technique, high resolution and/or small surface area field emission displays may be manufactured. The black matrix material does not brown when subjected to the conditions associated with the manufacture of field emission displays, is chemically inert and remains stable under vacuum conditions and electron bombardment. The black matrix material is selected from boron carbide, silicon carbide, tungsten carbide, vanadium carbide and mixtures thereof.