Jacob Berger
Jacob S. Berger, Ph.D.
Senior Associate
Electrical Engineering & Computer Science
New York

Dr. Berger’s education and work experience encompass a range of optical and electronic devices. He has extensive experience with semiconductor fabrication, manufacturing, process development, tool evaluation as well as a variety of device characterization, failure analysis techniques. He is a Six Sigma Green Belt with experience in process improvement techniques. This has allowed Dr. Berger to develop products from material selection to full-scale manufacturing.

Dr. Berger has experience using a number of tools and analytical techniques. Within semiconductor nanofabrication and manufacturing, Dr. Berger is well versed in several etching techniques including reactive ion etching (RIE), ion milling and wet etching. He also has extensive experience with chemical and physical vapor deposition (PE, thermal and ion beam) and lithography including electron beam and UV photolithography. Dr. Berger also has experience with analytical and characterization techniques such as SEM, FIB, EDX, AFM, Ellipsometry, PL Spectroscopy, IV characterization, and Liquid Chromatography.

Dr. Berger received his Ph.D. in Materials Science and Engineering at the University of Pennsylvania. His thesis work focused on novel nanoscale integrated optoelectronic devices using II-VI semiconductor nanowires where he grew, designed, fabricated and tested a range of semiconductor nanodevices. He received his bachelor’s degree in Physics from Yeshiva University where he worked on protein physics, protein crystallization, and understanding the role of small precipitant molecules in linking much larger protein structures.

Prior to joining Exponent, Dr. Berger was an R&D IC Process Development Engineer at Keysight Technologies (formerly Agilent / HP) where high frequency GaAs and InP FETs and HBTs are manufactured for use in Keysight’s high frequency test equipment. He worked in the III-V semiconductor manufacturing wafer fab focusing on manufacturing support, statistical process control (SPC), tool qualification, and process development through design of experiments (DOE) on reactive ion etching and ion milling tools. He also worked closely with integration engineers on device design, failure analysis and new technology introduction (NTI) projects. While at Keysight, Dr. Berger helped develop next generation technologies from development through qualification stages and finally releasing new products to market. 

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Materials Science and Engineering, University of Pennsylvania, 2016
  • M.S.E., Materials Science and Engineering, University of Pennsylvania, 2013
  • B.A., Physics, Yeshiva University, 2011
  • Excellence in Academic Studies in Physics, Yeshiva University, 2011

    ACS IREU Fellowship, University of Strathclyde, 2009

Publications

M. L. Ren*, J. S. Berger* W. Liu, G. Liu, R. Agarwal “Creating new second-order nonlinear coefficient with strong modulation and near perfect contrast in semiconducting CdS via high-field domain”, Nature Communications 2018.

P. Nukala, M. Ren, R. Agarwal, J. S. Berger, G. Liu, A. T. C. Johnson, R. Agarwal, “Inverting polar domains via electrical pulsing in metallic germanium telluride”, Nature Communications 2017.

Bumsu Lee, Wenjing Liu, Carl H. Naylor, Joohee Park, Stephanie Malek, J. Berger, A.T. Charlie Johnson, Ritesh Agarwal, “Electrical tuning of exciton-plasmon polariton coupling in monolayer MoS2 integrated with plasmonic nanoantenna lattice”,Nanoletters, 2017

R. Agarwal, D.N. Zakharov, N.M. Krook, W. Liu, J.S. Berger, E.A. Stach, R. Agarwal, “Real-Time observation of Morphological Transformation in II-VI semiconducting Nanobelts via Environmental Transmission Electron Microscopy, Nano Letters 2015.

M. Sauber, J. Jakoncic, J. S. Berger, J. Karp, A. Axelbaum, S. V. Buldyrev, B. J. Hrnjez, N. Asherie, Acta Crystalographic. D. 71, 427 2015 “Crystallization of lysozyme with (R)-, (S)- and (RS)-2-methyl-2-4-pentanediol” Acta Crystalographic 2015.

C. Wales, J. Berger, S. Blass, R.M. Crooks and N. Asherie, "Quasielastic Light Scattering of Platinum Dendrimer-Encapsulated Nanoparticles," Langmuir 2011. 

N. Asherie, J. Jakoncic, C. Ginsberg, A. Greenbaum, V. Stojanoff, B. Hrnjez, S. Blass, J. Berger, “Tartrate chirality determines thaumatin crystal habit,” Crystal. Grow. Des. 2009.

Presentations

Berger JS, Guardiola C, Agarwal R, Fernandez AC Cadmium Sulfide Nanowire Diodes for In Situ Dosimetric Measurements in a Clinical Proton Beam. Podium, Materials Research Society, Boston, MA December 2015.

Berger JS, Ren M, Ee H, Lui, W, Agarwal R, An Active Modulator Based on Second Harmonic Generation in CdS Nanobelt Waveguides via Photocurrent. Podium, Materials Research Society, Boston, MA December 2015.

Prior Experience

R&D IC Process Development Engineer, Keysight Technologies, 2016-2018

Graduate Research Assistant, University of Pennsylvania, 2011-2016

ACS IREU Fellow, University of Strathclyde, UK, 2009

Undergraduate Research Assistant, Yeshiva University, 2008 - 2011

Professional Affiliations

Materials Research Society

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Materials Science and Engineering, University of Pennsylvania, 2016
  • M.S.E., Materials Science and Engineering, University of Pennsylvania, 2013
  • B.A., Physics, Yeshiva University, 2011
  • Excellence in Academic Studies in Physics, Yeshiva University, 2011

    ACS IREU Fellowship, University of Strathclyde, 2009