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Qianfei Xu

from San Jose, CA
Age ~53
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Also known as:
Quian Fei Xu, I Xu
Related to:
Tian Tao, 48Wenda Xu, 36
Connected to:
Alexander A Xu, 33Anqi Xu, 34Benjamin B Xu, 67Bonnie Xu, 37Bonny J Xu, 32Boris Xu, 33Changhai Xu, 54Charline Q Xu, 63Chengyuan Xu, 45Chris X Xu, 60

Qianfei Xu Phones & Addresses

  • San Jose, CA
  • Llano, CA
  • Chino, CA
  • 3180 Sawtelle Blvd, Los Angeles, CA 90066
  • 3275 S Sepulveda Blvd, Los Angeles, CA 90034 (310) 915-9865
  • New York, NY
  • Mountain View, CA
  • Cupertino, CA
  • 3275 S Sepulveda Blvd, Los Angeles, CA 90034 (310) 780-6506

Work

Company: Sri international - Menlo Park, CA 2008 Position: Research engineer

Education

School / High School: University of California- Los Angeles, CA 2004 Specialities: Ph.D in Materials Science and Engineering

Skills

I-V/C-V measurement • Impedance measurement • SEM • AFM/EFM • STM • DSC/TMA/TGA • GPC • XRD • XPS/UPS • UV-Vis • FTIR • Raman • PL/EL measurement • rheometer • thickness measurement (ellipsometry • Dektak) • thin film coating/deposition • E-beaming writing • photolithography

Resumes

Resumes

Qianfei Xu Photo 1

Qianfei Xu

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Qianfei Xu Photo 2

Qianfei Xu Mountain View, CA

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Work:
SRI International
Menlo Park, CA
2008 to Jul 2012
Research Engineer
Trillion Science Inc
Mountain View, CA
2005 to 2008
Sr. Scientist
Dept. of Mechanical and Aerospace Engineering

2005 to 2005
Post-doctoral fellow
Dept. of Material Science and Engineering

2001 to 2004
Graduate Researcher
Hangzhou Magnetic Materials Company
Hangzhou, CN
1992 to 1997
Process Engineer
Education:
University of California
Los Angeles, CA
2004
Ph.D in Materials Science and Engineering
Zhejiang University
Hangzhou, CN
2000
Master of Engineering in Semiconductor Materials
University of Electronic Science and Technology of China
Chengdu, CN
1992
Bachelor of Engineering in Magnetic Physics and Devices
Skills:
I-V/C-V measurement, Impedance measurement, SEM, AFM/EFM, STM, DSC/TMA/TGA, GPC, XRD, XPS/UPS, UV-Vis, FTIR, Raman, PL/EL measurement, rheometer, thickness measurement (ellipsometry, Dektak), thin film coating/deposition, E-beaming writing, photolithography

Publications

Us Patents

Low Cost High Efficiency Transparent Organic Electrodes For Organic Optoelectronic Devices

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US Patent:
8466610, Jun 18, 2013
Filed:
May 13, 2010
Appl. No.:
13/319324
Inventors:
Yijian Shi - Mountain View CA, US
Qianfei Xu - Mountain View CA, US
Assignee:
SRI International - Menlo Park CA
International Classification:
H05B 33/06
H05B 33/10
US Classification:
313498, 313501, 445 58
Abstract:
The disclosure provides methods and materials for decreasing the cost and increasing the efficiency of electroluminescent devices. The disclosure also provides electroluminescent devices prepared by such methods. In one embodiment, for example, there is provided a method for preparing an electroluminescent device comprising two metal electrodes, an electroluminescent layer, an optical/insulating layer, and a conductive layer, all of which are disposed on a transparent substrate. One of the electrodes is patterned, and the optical/insulating layer comprises vias to allow conduction between the patterned electrode and the conductive layer.

Epoxy Compositions

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US Patent:
20080090943, Apr 17, 2008
Filed:
Oct 16, 2006
Appl. No.:
11/581302
Inventors:
Qianfei Xu - Mountain View CA, US
Chung-Jen Hou - Pensacola FL, US
International Classification:
C08L 63/00
US Classification:
523461
Abstract:
An epoxy composition for applications such as one-part adhesives, coatings, prepreg and molding compounds that includes leuco dyes, particularly those comprising a N,N-dialkylamino-, N,N-diarylamino-, or cycloalkylamino-functional group on one of the aromatic rings, as a co-catalyst or co-curing agent. The use of the leuco dye co-catalyst provides improved curing speed of the epoxy composition comprising a latent curing agent/catalyst such as Novacure imidazole microcapsules while maintaining the shelf-life stability. The epoxy may also include a secondary co-catalyst that includes amides and lactams, particularly those comprising a N,N-dialkylamino-, N,N-diarylamino-, or dicycloalkylamino-functional group. Secondary cocatalysts of low mobility at the storage conditions, such as those with a long chain substitutent, dimeric or oligomeric amides or lactams, are particularly preferred. The improved epoxy composition is implemented as adhesives for manufacturing an anisotropic conductive film (ACF) and also for connecting, encapsulating, or packaging of electronic devices.

Non-Random Array Anisotropic Conductive Film (Acf) And Manufacturing Process

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US Patent:
20090053859, Feb 26, 2009
Filed:
Jul 30, 2008
Appl. No.:
12/220960
Inventors:
Qianfei Xu - Mountain View CA, US
Shih-Wei Ho - Cupertino CA, US
Eric H. Liu - Cupertino CA, US
Assignee:
Trillion Science Inc. - Fremont CA
International Classification:
H01L 21/00
US Classification:
438118, 257E21001
Abstract:
The present invention discloses structures and manufacturing processes of an ACF of improved resolution and reliability of electrical connection using a non-random array of microcavities of predetermined configuration, shape and dimension. The manufacturing process includes the steps of (i) fluidic filling of conductive particles onto a substrate or carrier web comprising a predetermined array of microcavities, or (ii) selective metallization of the array followed by filling the array with a filler material and a second selective metallization on the filled microcavity array. The thus prepared filled conductive microcavity array is then over-coated or laminated with an adhesive film.

Output Efficiency Of Organic Light Emitting Devices

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US Patent:
20120119641, May 17, 2012
Filed:
May 13, 2010
Appl. No.:
13/319323
Inventors:
Yijian Shi - Mountain View CA, US
Qianfei Xu - Mountain View CA, US
International Classification:
H01J 1/63
H05K 13/00
H01J 9/00
US Classification:
313503, 427 58, 427 66, 216 13, 295921
Abstract:
The invention provides methods and materials suitable for increasing the output efficiency of light emitting diodes (LEDs), particularly organic LEDs (OLEDs). In one embodiment, for example, there is described a method for providing a porous coating over an OLED stack. The porous coating reduces optical loss and improves light extraction efficiency from the OLED device.

Cavity Electroluminescent Devices With Integrated Microlenses

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US Patent:
20130214254, Aug 22, 2013
Filed:
May 9, 2011
Appl. No.:
13/695434
Inventors:
Yijian Shi - Mountain View CA, US
Qianfei Xu - Mountain View CA, US
International Classification:
H01L 51/52
H01L 51/56
US Classification:
257 40, 257 98, 438 22
Abstract:
Herein is provided electroluminescent devices, and methods for their use and production. In some embodiments, the devices contain embedded optical features that act as lenses to direct photons emitted from an electroluminescent material. The lensing effect from the optical features allows increased light extraction from the devices compared with devices lacking such features. In some embodiments the devices are prepared using a plurality of etching and deposition steps.

Passive Matrix Organic Light Emitting Diodes

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US Patent:
20140167020, Jun 19, 2014
Filed:
Jan 25, 2014
Appl. No.:
14/164180
Inventors:
- Menlo Park CA, US
Qianfei Xu - Mountain View CA, US
William Siu-Keung Chu - Newark CA, US
Assignee:
SRI INTERNATIONAL - Menlo Park CA
International Classification:
H01L 27/32
US Classification:
257 40, 438 34
Abstract:
A passive matrix OLED display comprises an array of individually addressable OLED pixels arranged in column and row lines in an imaging area of the display, wherein at least one OLED pixel comprises at least one rectifying component connected in series with an electroluminescent diode, and wherein the at least one OLED pixel has an extended pixel on-time compared with a similar pixel lacking the at least one rectifying component.
Control profile
Qianfei Xu from San Jose, CA, age ~53 Get Report