Julie Casperson Brewer

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Contact Information:

3585 Agate Dr. #211

Santa Clara, CA 95051

626-676-6641
email: julie.brewer@gmail.com

 

EDUCATION:

Ph.D., Chemistry (2004)

California Institute of Technology, Pasadena, CA

 

M.S., Applied Physics (2002)

California Institute of Technology, Pasadena, CA

 

B.S., Chemical Physics, Minor in Music (1999)
University of California at San Diego, La Jolla, CA

 

RESEARCH EXPERIENCE:

Senior Device Engineer, September 2004 - present

Unity Semiconductor Corporation, Sunnyvale, CA

Design and electrical characterization of two terminal resistive memory devices.

 

Postdoctoral Associate, May 2004 - August 2004

Graduate Research Assistant, 1999 - 2004
Department of Applied Physics, California Institute of Technology, Pasadena, CA

Advisor: Prof. Harry A. Atwater
Design and characterization of layered tunnel barrier structures (high-k dielectrics deposited on silicon by atomic layer deposition (ALD)) to increase the write/erase speed of Flash memory devices. 

 

Summer Internship, July 2003 - September 2003

IBM Watson Research Laboratory, Yorktown Heights, NY

Characterized nanocrystal floating gate MOS capacitors fabricated by polymer templated self-assembly.

 

Undergraduate Research, Fall 1997 - Spring 1998, Fall 1998 - Spring 1999

Department of Chemistry, University of California at San Diego, La Jolla, CA

Advisor:  Prof. W. E. Moerner

Synthesized, analyzed, and optimized the photorefractive properties of polymers.

 

Research Experience for Undergraduates Program, Summer 1998
Materials Science Department, University of Oregon, Eugene, OR
Advisor: Prof. David C. Johnson
Studied and developed thin film processing of skutterudite thermoelectric devices. 

 

Research Experience for Undergraduates Program, Summer 1997
Department of Physics and Astronomy, University of Rochester, Rochester, NY

Advisor: Prof. Yongli Gao
Synthesized and analyzed new polymers, such as PPVs, for the fabrication of organic light emitting diodes.

 

TECHNICAL SKILLS:

Material Analysis Techniques: electrical characterization (current-voltage, capacitance-voltage, impedance spectroscopy, photoemission), bias-dependent internal photoemission, ellipsometry, X-ray diffraction spectroscopy, X-ray photoelectron spectroscopy, IR spectroscopy, nuclear magnetic resonance spectroscopy, UV-Vis spectroscopy, scanning electron microscopy, atomic force microscopy, profilometry, differential scanning calorimetry

 

Clean-Room Experience: (Lucent Technologies and Jet Propulsion Laboratory): ellipsometry, wafer cleaning and deposition, Quantox silicon and oxide monitoring

 

High-Vacuum System Experience: Design and maintenance of high-vacuum systems such as sputtering chambers, XPS system, evaporation chambers

 

Optical Systems Experience:  Optical system design such as for internal photoemission experiments

 

HONORS:

Materials Research Society graduate student silver award (Spring 2004)

IBM PhD Fellowship (September 2003 - June 2004)

National Physical Sciences Consortium Fellowship (September 2003 - June 2004)

Intel PhD Fellowship (declined in favor of IBM/NPSC fellowships)

Intel Masters Fellowship (September 2000 - June 2002)

Howard Hughes Fellowship for Scientific Research (1998)

Golden Key National Honor Society (1998 - )

Provost's List (7 terms)

Freshman Honors Program (1995 - 1996)

Regents Scholarship (September 1995 - June 1999)

 

TEACHING EXPERIENCE:

Teaching Assistant, Fall 1999 - Spring 2000

Fundamental Techniques of Experimental Chemistry, California Institute of Technology

Organized experiments and supervised undergraduates in investigations of chemical synthesis and analysis.

 

Curriculum Development, Spring 2001 - Winter 2001

Designed experiments for the 8th grade science curriculum, "Vision and Hearing," in conjunction with the Caltech Precollege Science Initiative Program.

 

JOURNAL ARTICLES:

  1. W. E. Moerner, M. A. Diaz-Garcia, D. Wright, B.R. Smith, J. D. Casperson, M. Bratcher,  M. S. DeClue,  and J. S. Siegel.  "Fast and Efficient Photorefractivity in Polymer Composites."  Polymer Preprints, 39, 980 (1998).

 

  1. D. Wright,  M. A. Diaz-Garcia,  J. D.  Casperson,  M. DeClue,  W. E. Moerner, and R. J. Twieg.  "High Speed Photorefractive Polymer Composites," Applied Physics Letters, 73, 1490 (1998).

 

  1. M. A. Diaz-Garcia, D. Wright, J. D. Casperson, B. Smith, E. Glazer, W. E. Moerner, and R. J. Twieg, "Photorefractive Properties of Poly(N-Vinyl Carbazole)-Based Composites for High-Speed Applications," Chemistry of Materials, 11, 1784-1791 (1999).

 

  1. W. E. Moerner, A. Grunnet-Jepsen, D. Wright, J. D. Casperson, M. S. DeClue, J. S. Siegel, and R. J. Twieg, "Understanding Photorefractivity in High-Performance Polymer Composites," OSA Trends in Optics and Photonics Volume 27, Advances in Photorefractive Materials, Effects, and Devices, P. E. Andersen et al., Eds. (Optical Society of America, Washington, D. C., 1999), pp. 164-172.

 

  1. R. J. Twieg, M. He, L. Sukhomlinova, F. You, W. E. Moerner, M. A. Diaz-Garcia, D. Wright, J. D. Casperson, R. Wortmann, C. Glania, P. Kraemer, K. Lukaszuk, R. Matschiner, K. D. Singer, V. Ostoverkhov, and R. Petschek, "Design and Optimization of Chromophores for Liquid Crystal and Photorefractive Applications," Proceedings of the Materials Research Society, 561, 119-130 (1999).

 

  1. H. Sellinschegg, J. R. Williams, J. Casperson, G. S. Nolas, D. C. Johnson, "The Synthesis of Metastable Skutterudites Using Superlattice Reactants," Proceedings of the Materials Research Society, 545, 37-43 (1999).

 

  1. J. R. Williams, H. Sellinschegg, J. Casperson, J. Harris, C. Daniels-Hafer, D. C. Johnson, G. Nolas, T. Tritt, E. Nelson, "Synthesis of Skutterudite Superlattices by Controlled Crystallization of Elementally Modulated Reactants," Proceedings of the Eighteenth International Conference on Thermoelectrics ICT99, 5-9 (1999).

 

  1. M. A. Diaz-Garcia, D. Wright, J. D. Casperson, B. Smith, E. Glazer, W. E. Moerner, L. I. Sukhomlinova, R. J. Twieg, "High Speed PVK-Based Photorefractive Polymer Composites," Nonlinear Optics, 25, 189-194 (2000).

 

  1. M. L. Ostraat, J. W. DeBlauwe, M. L. Green, L. D. Bell, M. L. Brongersma, J. D. Casperson, R. C. Flagan, H. A. Atwater, "Synthesis and characterization of aerosol silicon nanocrystal nonvolatile floating-gate memory devices," Applied Physics Letters, 79, 433-435 (2001).

 

  1. J. D. Casperson, L. D. Bell, H. A. Atwater, "Materials issues for layered tunnel barrier structures," Journal of Applied Physics, 92, 261-267 (2002).

 

  1. R. J. Walters, P. G. Kik, J. D. Casperson, H. A. Atwater, R. Lindstedt, M. Giorgi, G. Bourianoff, "Silicon optical memory," Appl. Phys. Lett., 85, 2622-2624 (2004).

 

  1. Julie Casperson Brewer, R. J. Walters, L. D. Bell, D. B. Farmer, R. G. Gordon, H. A. Atwater, "Determination of energy barrier profiles for high-k dielectric materials utilizing bias-dependent internal photoemission," Appl. Phys. Lett., 85, 4133-4135 (2004).

 

 

CONFERENCES AND SEMINARS (selected):

  1. J. D.  Casperson, "Analysis of Polymer Precursors for Light-Emitting Devices," REU Conference, Department of Physics and Astronomy, University of Rochester, Rochester, NY, August 7, 1997.

 

  1. J. D.  Casperson, "Skutterudites as Thermoelectric Materials," REU Conference, Chemical Physics Institute, University of Oregon, Eugene, OR, August 10, 1998.

 

  1. H. Atwater, M. Ostraat, M. Brongersma, E. Boer, J. Casperson, S. Maier, R. C. Flagan, J. deBlauwe, M. Green, L. D. Bell, "Functional Nanostructured Particle Arrays for Nanocrystal Nonvolatile Memories," Symposium on Nonvolatile Memory Technology, Arlington, VA, November 15, 2000.

 

  1. J. D. Casperson, L. D. Bell, H. A. Atwater, "Layered Tunnel Barriers for Nanocrystal Memory Applications," Materials Research Society fall meeting, Boston, MA, November 27, 2000.

 

  1. J. D. Casperson, L. D. Bell, H. A. Atwater, "Layered Tunnel Barriers for Nonvolatile Memory Applications," Gordon Research Conference, Meriden, NH, July 4, 2001.

 

  1. W. Snyder, D. Thesenga, J. D. Casperson, "Vision and Hearing: An 8th grade curriculum unit," Center for the Science and Engineering of Materials annual meeting, Pasadena, CA, December 13, 2001.

 

  1. J. D. Casperson, L. D. Bell, B. W. Busch, L. Manchanda, M. L. Green, H. A. Atwater, "Transport Properties of Heterostructure ZrSiOx / Al2O3 / ZrSiOx and Si3N4 / Al2O3 / Si3N4 on Si," Materials Research Society spring meeting, San Francisco, CA, April 4, 2002.

 

  1. J. D. Casperson, L. D. Bell, B. W. Busch, L. Manchanda, M. L. Green, H. A. Atwater, "Layered Tunnel Barriers for Silicon Based Nonvolatile Memory Applications," Electronic Materials Conference, Santa Barbara, CA, June 27, 2002.

 

  1. J. D. Casperson, T. Feng, E. A. Boer, R. C. Flagan, J. de Blauwe, L. Manchanda, M. L. Ostraat, B. W. Busch, M. L. Green, L. D. Bell, H. A. Atwater, (invited) "Functional Silicon Nanoparticle Arrays for Nonvolatile Memory Applications," International Conference on Polycrystalline Semiconductors, Nara, Japan, September 13, 2002.

 

  1. J. D. Casperson, L. D. Bell, B. W. Busch, M. Y. Ho, M. L. Green, H. A. Atwater, "Layered Tunnel Barriers for Silicon Based Nonvolatile Memory Applications," Workshop on Nanostructures for Electronics and Optics, Dresden, Germany, October 7, 2002.

 

  1. J. D. Casperson, L. Douglas Bell, Brett W. Busch, M. Y. Ho, M. L. Green, H. A. Atwater, "Layered Tunnel Barriers Using High Dielectric Constant Materials," Materials Research Society spring meeting, San Francisco, CA, April 22, 2003.

 

  1. J. D. Casperson, K. W. Guarini, C. T. Black, "Nanocrystal FLASH Memory Fabricated by Template Self-Assembly," IBM Departmental Seminar, Yorktown Heights, NY, August 29, 2003.

 

  1. J. D. Casperson, L. D. Bell, D. B. Farmer, R. G. Gordon, H. A. Atwater, "Electrical and Optical Carrier Injection in Layered High-k Heterostructures," Materials Research Society fall meeting, Boston, MA, December 2, 2003.

 

  1. J. D. Casperson, L. D. Bell, D. B. Farmer, R. G. Gordon, H. A. Atwater, "Measurement of high-k dielectric stacks for nonvolatile memory applications by internal photoemission," Materials Research Society spring meeting, San Francisco, CA, April 14, 2004.

 

  1. J. D. Casperson, L. D. Bell, D. B. Farmer, R. G. Gordon, H. A. Atwater, "Layered tunnel barrier lowering in multilayer high-k heterostructures using bias-dependent internal photoemission spectroscopy," Materials Research Society fall meeting, Boston, MA, November 30, 2004.

 

ISSUED PATENTS:

 

  1. Electro-Optical Nanocrystal Memory Device, US patent # 7,121,474:  G. I. Bourianoff, R. Lindstedt, H. A. Atwater, M. Giorgi, R. J. Walters, J. D. Casperson, P. G. Kik, filed on 6/18/2003.  Issued on 10/17/2006.

 

  1. Nanocrystal based high-speed electro-optic modulator, US patent #6,771,410:  G. I. Bourianoff, R. Lindstedt, H. A. Atwater, M. Giorgi, R. J. Walters, J. D. Casperson, P. G. Kik, filed on 6/18/2003.  Issued on 8/3/2004.