David Michael Sanders

Address:

7544 Townsville Ave, Las Vegas, NV 89113

VIN:

1GKFK13067R126184

Make:

GMC

Model:

YUKON

Year:

2007

US Patent:

7615942, Nov 10, 2009

Filed:

Nov 14, 2006

Appl. No.:

11/599797

Inventors:

David M. Sanders - Livermore CA, US
Stephen Sampayan - Manteca CA, US
Kirk Slenes - Albuquerque NM, US
H. M. Stoller - Albuquerque NM, US

Assignee:

Lawrence Livermore National Security, LLC - Livermore CA
TPL, Inc. - Albuquerque MN

International Classification:

H05H 9/00

US Classification:

315505, 315500, 156288

Abstract:

A linear accelerator having cast dielectric composite layers integrally formed with conductor electrodes in a solventless fabrication process, with the cast dielectric composite preferably having a nanoparticle filler in an organic polymer such as a thermosetting resin. By incorporating this cast dielectric composite the dielectric constant of critical insulating layers of the transmission lines of the accelerator are increased while simultaneously maintaining high dielectric strengths for the accelerator.

US Patent:

7893541, Feb 22, 2011

Filed:

Oct 24, 2006

Appl. No.:

11/586468

Inventors:

George J. Caporaso - Livermore CA, US
Stephen E. Sampayan - Manteca CA, US
James S. Sullivan - Livermore CA, US
David M. Sanders - Livermore CA, US

Assignee:

Lawrence Livermore National Security, LLC - Livermore CA

International Classification:

H01L 23/48
H01L 23/52
H01L 29/40

US Classification:

257778, 257 82, 257433

Abstract:

An improved photoconductive switch having a SiC or other wide band gap substrate material, such as GaAs and field-grading liners composed of preferably SiN formed on the substrate adjacent the electrode perimeters or adjacent the substrate perimeters for grading the electric fields.

US Patent:

8125089, Feb 28, 2012

Filed:

Nov 23, 2010

Appl. No.:

12/952949

Inventors:

George J. Caporaso - Livermore CA, US
Stephen E. Sampayan - Manteca CA, US
James S. Sullivan - Livermore CA, US
David M. Sanders - Livermore CA, US

Assignee:

Lawrence Livermore National Security, LLC - Livermore CA

International Classification:

H01L 23/48
H01L 23/52
H01L 29/40

US Classification:

257778, 257 82, 257433

Abstract:

An improved photoconductive switch having a SIC or other wide band gap substrate material, such as GaAs and field-grading liners composed of preferably SiN formed on the substrate adjacent the electrode perimeters or adjacent the substrate perimeters for grading the electric fields.

US Patent:

20120082411, Apr 5, 2012

Filed:

Jun 28, 2011

Appl. No.:

13/171372

Inventors:

James S. Sullivan - Livermore CA, US
David M. Sanders - Livermore CA, US
Steven A. Hawkins - Livermore CA, US
Stephen A. Sampayan - Manteca CA, US

Assignee:

Lawrence Livermore National Security, LLC - Livermore CA

International Classification:

G02B 6/12

US Classification:

385 14

Abstract:

A photo-conductive switch package module having a photo-conductive substrate or wafer with opposing electrode-interface surfaces, and at least one light-input surface. First metallic layers are formed on the electrode-interface surfaces, and one or more optical waveguides having input and output ends are bonded to the substrate so that the output end of each waveguide is bonded to a corresponding one of the light-input surfaces of the photo-conductive substrate. This forms a waveguide-substrate interface for coupling light into the photo-conductive wafer. A dielectric material such as epoxy is then used to encapsulate the photo-conductive substrate and optical waveguide so that only the metallic layers and the input end of the optical waveguide are exposed. Second metallic layers are then formed on the first metallic layers so that the waveguide-substrate interface is positioned under the second metallic layers.

US Patent:

20130056842, Mar 7, 2013

Filed:

Oct 22, 2012

Appl. No.:

13/657746

Inventors:

Lawrence Livermore National Security, LLC - Livermore CA, US
David M. Sanders - Livermore CA, US
Steven A. Hawkins - Livermore CA, US
Stephen A. Sampayan - Manteca CA, US

Assignee:

Lawrence Livermore National Security, LLC - Livermore CA

International Classification:

H01L 31/0232
H01L 31/18

US Classification:

257432, 438 65, 257E31127, 257E31117

Abstract:

A photo-conductive switch package module having a photo-conductive substrate or wafer with opposing electrode-interface surfaces metalized with first metallic layers formed thereon, and encapsulated with a dielectric encapsulation material such as for example epoxy. The first metallic layers are exposed through the encapsulation via encapsulation concavities which have a known contour profile, such as a Rogowski edge profile. Second metallic layers are then formed to line the concavities and come in contact with the first metal layer, to form profiled and metalized encapsulation concavities which mitigate enhancement points at the edges of electrodes matingly seated in the concavities. One or more optical waveguides may also be bonded to the substrate for coupling light into the photo-conductive wafer, with the encapsulation also encapsulating the waveguides.

US Patent:

20130106316, May 2, 2013

Filed:

Oct 31, 2011

Appl. No.:

13/285996

Inventors:

George J. Caporaso - Livermore CA, US
Stephan E. Sampayan - Manteca CA, US
David M. Sanders - Livermore CA, US

Assignee:

Lawrence Livermore National Security, LLC - Livermore CA

International Classification:

H05H 7/00
B05D 5/12
H01G 4/255

US Classification:

315506, 361272, 427102

Abstract:

In a structure or device having a pair of electrical conductors separated by an insulator across which a voltage is placed, resistive layers are formed around the conductors to force the electric potential within the insulator to distribute more uniformly so as to decrease or eliminate electric field enhancement at the conductor edges. This is done by utilizing the properties of resistive layers to allow the voltage on the electrode to diffuse outwards, reducing the field stress at the conductor edge. Preferably, the resistive layer has a tapered resistivity, with a lower resistivity adjacent to the conductor and a higher resistivity away from the conductor. Generally, a resistive path across the insulator is provided, preferably by providing a resistive region in the bulk of the insulator, with the resistive layer extending over the resistive region.

US Patent:

52829448, Feb 1, 1994

Filed:

Jul 30, 1992

Appl. No.:

7/921779

Inventors:

David M. Sanders - Livermore CA
Steven Falabella - Livermore CA

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

C23C 1432

US Classification:

20419238

Abstract:

A cylindrically symmetric arc source to produce a ring of ions which leave the surface of the arc target radially and are reflected by electrostatic fields present in the source to a point of use, such as a part to be coated. An array of electrically isolated rings positioned in the source serves the dual purpose of minimizing bouncing of macroparticles and providing electrical insulation to maximize the electric field gradients within the source. The source also includes a series of baffles which function as a filtering or trapping mechanism for any macroparticles.

US Patent:

59552212, Sep 21, 1999

Filed:

Nov 21, 1997

Appl. No.:

8/976244

Inventors:

David M. Sanders - Livermore CA
Derek E. Decker - Livermore CA

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

G03H 102

US Classification:

430 2

Abstract:

Optical patterns and lithographic techniques are used as part of a process to embed parallel and evenly spaced conductors in the non-planar surfaces of an insulator to produce high gradient insulators. The approach extends the size that high gradient insulating structures can be fabricated as well as improves the performance of those insulators by reducing the scale of the alternating parallel lines of insulator and conductor along the surface. This fabrication approach also substantially decreases the cost required to produce high gradient insulators.