Chronological

2011  |  2010  |  2009  |  2008  |  2007  |  2006  |  2005  |  2004  |  2002

2014

Journals

Ozcan, O.; Weihua Hu; Sitti, M.; Bain, J.; Ricketts, D.S.,Investigation of tip current and normal force measured simultaneously during local oxidation of titanium using dual-mode scanning probe microscopy,” Micro & Nano Letters, IET , vol.9, no.5, pp.332-336, May 2014.

Williams, D.F.; Corson, P.; Sharma, J.; Krishnaswamy, H.; Tai, W.; George, Z.; Ricketts, D.S.; Watson, P.M.; Dacquay, E.; Voinigescu, S.P., “Calibrations for Millimeter-Wave Silicon Transistor Characterization,” Microwave Theory and Techniques, IEEE Transactions on , vol.62, no.3, pp.658-668, Mar. 2014.

D. Arumugam, J. Griffin, D. Stancil and D. S. Ricketts,Three-Dimensional Position and Orientation Measurements using Magnetoquasistatic Fields and Complex Image Theory,” Antennas and Propagation Magazine, IEEE, vol.56, no.1, pp.160-173, Feb. 2014

Ricketts, D.S.; Chabalko, M.; Hillenius, A., “Tri-Loop Impedance and Frequency Matching With High- Q Resonators in Wireless Power Transfer,“Antennas and Wireless Propagation Letters, IEEE , vol.13, no., pp.341-344, Jan. 2014.

Conferences

M. Abbasi and D. S. Ricketts, “Demonstration of a W-Band Outphasing Transmitter Architecture for Enhanced Output Power,” Int. Microwave Sym., submitted for publication.

J. Chabalko, W. C. Harris, D. D. Stancil and D. S. Ricketts, “Experimental Characterization of Volume-mode Waves in Near-field Anisotropic Metamaterials with Application to Wireless Power Transfer,Asia-Pacific Microwave Conference 2014, accepted, to appear

Junfeng Xu; Ricketts, D.S., “Broadband W-band On-Chip Yagi Antenna Using Superstrate for High Efficiency and Endfire Radiation”  APMC, 5 Nov. 2014

Chabalko, M.J.; Laifenfeld, M.; Buchbut, Y.; Ricketts, D.S., “Resonantly-coupled wireless powered seat locomotion in automotive applications,European Microwave Conference (EuMC), 2014 44th , vol., no., pp.421-424, 6-9 Oct. 2014

Chabalko, M.J.; Ricketts, D.S., “The effects of magneto-static resonances in metamaterials on the quality factor of coils in near field applications,” Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE , vol., no., pp.426-427, 6-11 July 2014

Chabalko, M.; Alarcon, E.; Bou, E.; Ricketts, D.S., “Optimization of WPT efficiency using a conjugate load in non-impedance matched systems.,Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE , vol., no., pp.645-646, 6-11 July 2014

Chabalko, M.J.; Ricketts, D.S., “Low-frequency metamaterial permeability retrieval for near-field applications,Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE , vol., no., pp.233-234, 6-11 July 2014

Wei Tai; Ricketts, D.S., “A W-band 21.1 dBm power amplifier with an 8-way zero-degree combiner in 45 nm SOI CMOS,Microwave Symposium (IMS), 2014 IEEE MTT-S International , vol., no., pp.1-3, 1-6 June 2014

Wei Tai; Ricketts, D.S.,”Watt-Level, All-Silicon mm-Wave Power Amplifiers Using Zero-Degree Combiners” GOMACTech (Government Microcircuit Applications and Critical Technology) Conference, April 2014

M. Abbasi; Ricketts, D.S.,”100 Gb/s All-electronic Radios: Opportunities and Challenges” North Carolina State University, GomacTech, Mar. 2014

Wei Tai; Ricketts, D.S.,A Q-band power amplifier with high-gain pre-driver and 18.7 dBm output power for fully integrated CMOS transmitters,Power Amplifiers for Wireless and Radio Applications (PAWR), 2014 IEEE Topical Conference on , vol., no., pp.34-36, 19-23 Jan. 2014

Trotter, Matthew S.; Griffin, Joshua D.; Ricketts, David S., “Enhanced accuracy for a complex image theory position estimator using frequency diversity,Wireless Sensors and Sensor Networks (WiSNet), 2014 IEEE Topical Conference on , vol., no., pp.52-54, 19-23 Jan. 2014

Chen, M.W.; Carley, L.R.; Ricketts, D.S., “A process-technology-scaling-tolerant pipelined ADC architecture achieving 6-bit and 4 GS/s ADC in 45nm CMOS,Silicon Monolithic Integrated Circuits in Rf Systems (SiRF), 2014 IEEE 14th Topical Meeting on , vol., no., pp.16-18, 19-23 Jan. 2014

D. S. Ricketts and A. Hillenius, “Tri-loop Antenna for Impedance Matching and Frequency Tuning of High-Q Resonators in Wireless Power Transfer,” Antennas and Wireless Propagation Letters, IEEE , vol.13, no., pp.341-344, 2014

D. S. Ricketts, “Advances in Wireless Power Transfer Research from Academia: Challenges and Opportunities,” Wireless Power Summit, 2014 (Invited)

2013

Journals

Tai, W.; Ricketts, D.S., “A compact, 36 to 72 GHz 15.8 dBm power amplifier with 66.7% fractional bandwidth in 45 nm SOI CMOS,” Microw. And Opt. Tech Lett. ,vol. 56, pp.1098-2760, Nov. 2013.

J. Xu and D. S. Ricketts, “An Efficient, Watt-Level Microwave Rectifier Using an Impedance Compression Network (ICN) With Applications in Outphasing Energy Recovery Systems,” Microwave and Wireless Components Letters, IEEE , vol.23, no.10, pp.542-544, Oct. 2013.

Arumugam, D.D.; Ricketts, D.S.,Passive orientation measurement using magnetoquasistatic fields and coupled magnetic resonances,” Electronics Letters , vol.49, no.16, pp.999-1001, Aug. 2013.

Williams, D.F.; Corson, P.; Sharma, J.; Krishnaswamy, H.; Wei Tai; George, Z.; Ricketts, D.; Watson, P.; Dacquay, E.; Voinigescu, S.P., “Calibration-Kit Design for Millimeter-Wave Silicon Integrated Circuits,” Microwave Theory and Techniques, IEEE Transactions on , vol.61, no.7, pp.2685-2694, July 2013.

Tai, W.; Ricketts, D.S., “74 GHz, 17.2 dBm power amplifier in 45 nm SOI CMOS,” Electronics Letters ,vol.49,no.12,pp.758-759, June 2013.

S. Tamaru and D. S. Ricketts, “Measurement of ultra-low power oscillators using adaptive drift cancellation with applications to nano-magnetic spin torque oscillators,” Rev. of Scien. Instr., vol. 84, p. 054704-7, May 2013.

Arumugam, D.D.; Ricketts, D.S., “Passive Magnetoquasistatic Position Measurement Using Coupled Magnetic Resonances,” Antennas and Wireless Propagation Letters, IEEE , vol.12, no., pp.539-542, Apr. 2013

Conferences

Arumugam, D.D.; Griffin, J.D.; Stancil, D.D.; Ricketts, D.S., “Magneto-Quasistatic Tracking of an American Football: A Goal-Line Measurement,” Antennas and Propagation Magazine, IEEE , vol.55, no.1, pp.138-146, Feb. 2013.

D. S. Ricketts, M. Chabalko and A. Hillenius,Experimental demonstration of the equivalence of inductive and strongly coupled magnetic resonance wireless power transfer,” Applied Physics Letters, vol. 102, no. 5, pp.053904, Feb. 2013.

C. Li and D. S. Ricketts, “Loss minimization in /4 impedance transformers using multiple /4 segments,” Electronic Letters, vol.49, no.4, pp.274-276, Feb. 14 2013

W. Hu, J. Bain and D. S. Ricketts, “An AFM/STM multi-mode nanofabrication approach allowing in situ surface modification and characterization,” Micro and Nano Letters, Vol. 8, p. 43-46, Jan 2013.

Junfeng Xu; Wei Tai; Ricketts, D.S., “Microwave watt-level rectifiers for power recycling applications,” Microwave Integrated Circuits Conference (EuMIC), 2013 European , vol., no., pp.516-519, 6-8 Oct. 2013.

Ricketts, D.S.; Chabalko, M.J.; Hillenius, A., “Optimization of wireless power transfer for mobile receivers using automatic digital capacitance tuning,” Microwave Conference (EuMC), 2013 European , vol., no., pp.515-518, 6-10 Oct. 2013.

Trotter, M.S.; Ricketts, D.S.; Griffin, J.D., “Experimental demonstration of complex image theory for vertical magnetic dipoles with applications to remote sensing and position tracking,” Electromagnetics in Advanced Applications (ICEAA), 2013 International Conference on , vol., no., pp.1248-1251, 9-13 Sept. 2013.

O. Ozcan, W. Hu, M. Sitti, J. A. Bain and D.S. Ricketts, “Experimental Investigation of Force, Conduction and Growth in Nano-oxidation using scanning probe microscopy,” Enabling Nanomanufacturing for Rapid Innovation, Aug. 2013. [Best Poster]

D. S. Ricketts and M. Chabalko, “Distributed Resonant Coil Systems for Efficient Wireless Power Transfer,” Progress in Electromagnetics Research Symposium (PIERS), Aug. 2013.

J. Xu and D. S. Ricketts, “A Transmission line based resistance compression network (TRCN) for microwave applications,” Microwave Symposium Digest (IMS), 2013 IEEE MTT-S International , vol., no., pp.1-3, 2-7 June 2013

D. S. Ricketts and M. Chabalko, “On the efficient wireless power transfer in resonant multi-receiver systems,” Circuits and Systems (ISCAS), 2013 IEEE International Symposium on , vol., no., pp.2779-2782, 19-23 May 2013

Arumugam, D.D.; Sibley, M.; Griffin, J.D.; Stancil, D.D.; Ricketts, D.S., “An active position sensing tag for sports visualization in American football,” RFID (RFID), 2013 IEEE International Conference on , vol., no., pp.96-103, April 30 2013.

W. Tai, L. R. Carley and D. S. Ricketts, “A 0.7W Fully Integrated 42GHz Power Amplifier with 10% PAE in 130nm SiGe BiCMOS,” Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2013 IEEE International , vol., no., pp.142-143, 17-21 Feb. 2013

M. W. Chen, D. Tian, S. Phatak, L. R. Carley, D. S. Ricketts, “A 4GHz-Bandwidth Op-Amp Free Track-and-Hold and 6-bit Flash ADC in 45nm SOI CMOSSilicon Monolithic Integrated Circuits in RF Systems (SiRF), 2013 IEEE 13th Topical Meeting on , vol., no., pp.126-128, 21-23 Jan. 2013

D. Birt, K. An, M. Tsoi, S. Tamaru, D. Ricketts, K.L. Wong, P.K. Amiri, K.L. Wang and X. Li,” Oscillatory Spatial Intensity Pattern for Spin Waves Excited with a Coplanar Waveguide Antenna,” Conference on Magnetism and Magnetic Materials, Chicago, IL, paper EC-02, Jan. 2013.

2012

Journals 

Arumugam, J. Griffin, D. Stancil and D. S. Ricketts, “Error Reduction in Magnetoquasistatic Positioning Using Orthogonal Emitter Measurements,” Antennas and Wireless Propagation Letters, IEEE, vol.11, no., pp.1462-1465, 2012

R. Birt, K. An, M. Tsoi, S. Tamaru, D. Ricketts, K. L. Wong, P. K. Amiri, K. L. Wang, and X. Li, “Deviation from exponential decay for spin waves excited with a coplanar waveguide antenna,” Applied Physics Letters., vol. 101, no. 25, pp.252409, 2012.

S. Tamaru and D. S. Ricketts, “Experimental Study of the Variation in Oscillation Characteristics of Point-Contact-Based Spin-Torque Oscillators.” IEEE Trans. on Magnetics, vol.3, no., pp.3000504, 2012

M. E. Korogozlar, S. Goldstein and D. S. Ricketts, “Analysis and modeling of capacitive power transfer in microsystems,Circuits and Systems I: Regular Papers, IEEE Transactions on , vol.59, no.7, pp.1557-1566, July 2012

W. Hu, J. A. Bain and D. S. Ricketts “In-Situ quantification of electrical isolation in STM-fabricated TiOx nanostructures,” Micro and Nano Letters, vol. 7, no. 4, pp. 334-36, Apr. 2012.

Conferences

C. Li and D. S. Ricketts, “A low-loss, compact, /4 power combiner architecture,” Microwave Integrated Circuits Conference (EuMIC), 2012 7th European , vol., no., pp.147-150, 29-30 Oct. 2012

D. S. Ricketts and A. Hillenius, “Equivalence of inductive coupling and strongly coupled Magnetic resonance in wireless power transfer,” Progress in Electromagnetics Research Symposium (PIERS), Aug. 2012.

D. S. Ricketts and A. Hillenius, “Tri-loop Antenna for Impedance Matching and Frequency Tuning of High-Q Resonators in Wireless Power Transfer,” Antennas and Wireless Propagation Letters, IEEE , vol.13, no., pp.341-344, 2014

D. Arumugam, J. Griffin, D. Stancil and D. S. Ricketts, “Experimental study on the effects of groups of people on magnetoquasistatic positioning accuracy,” Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE , vol., no., pp.1-2, 8-14 July 2012

D. S. Ricketts, “A dispersion-tapered reflection soliton oscillator,” Microwave Symposium Digest (MTT), 2012 IEEE MTT-S International , vol., no., pp.1-3, 17-22 June 2012

D. Tian, L. R. Carley and D. S. Ricketts, “Frequency Scaling of Power Reclamation Networksin Outphasing PA Architectures,” Circuits and Systems (ISCAS), 2012 IEEE International Symposium on , vol., no., pp.1058-1061, 20-23 May 2012

S. Tamaru and D. S. Ricketts, “Origin of variation in the oscillation characteristics of point contact based spin torque oscillators,” Magnetics Letters, IEEE , vol.3, no., pp.3000504, 2012

W. Hu J. A. Bain and D. S. Ricketts, “In-situ characterization using AFM probes in multiple modes,” Int. Conf. Electron, Ion, Photon Beam Technology and Nanofabrication, May, 2012.

W. Tai, C. Li, Z. Li, G. Yahalom, D.S. Ricketts, V. Stojanovic and J. Dawson, “A 45 GHz Asymmetric Multilevel Outphasing Transmitter in 45nm SOI CMOS,” Student Research Int. Solid-State Circuits Conf, IEEE, Feb. 2012.

Lee, B.J.; Hillenius, A.; Ricketts, D.S., “Magnetic resonant wireless power delivery for distributed sensor and wireless systems,” Wireless Sensors and Sensor Networks (WiSNet), 2012 IEEE Topical Conference on , vol., no., pp.13-16, 15-18 Jan. 2012.

D. Arumugam, J. Griffin, D. Stancil and D. S. Ricketts, “A wireless orientation sensor using magnetoquasistatic fields and complex image theory,” Radio and Wireless Symposium (RWS), 2012 IEEE , vol., no., pp.251-254, 15-18 Jan. 2012

2011

Journals

S. Tamaru, J. A. Bain, M. H. Kryder and D. S. Ricketts, “Theory for calculating the Green’s function of magnetostatic surface waves and its application to the study of spatial diffraction patterns,” Physical Rev. B¸ 84, pp.064437 (2011).

Conferences

W. Tai, L. R. Carley and D. S. Ricketts,A Q-band SiGe Power Amplifier with 15.5 dBm Saturated Output Power and 26% Peak PAE,” Bipolar/BiCMOS Circuits and Technology Meeting (BCTM), 2011 IEEE , vol., no., pp.146-149, 9-11 Oct. 2011

D. Arumugam, D. Stancil and D. S. Ricketts, “Proximity and Orientation Sensing Using Magnetoquasistatic Fields and Complex Image TheoryVehicular Technology Conference (VTC Fall), 2011 IEEE , vol., no., pp.1-5, 5-8 Sept. 2011

W. Hu, J. Gu, Z. George and D. S. Ricketts, “Directed scanning probe nanomanufacturing of lateral Ti-TiO2-Ti junctions for low capacitance MIM rectenna diodes,” Micro and Nano Engineering Conf., Berlin, Sept. 2011.

D. Arumugam, J. Griffin, D. Stancil and D. S. Ricketts, “2-Dimensional Position Measurement using Magnetoquasistatic Fields,Antennas and Propagation in Wireless Communications (APWC), 2011 IEEE-APS Topical Conference on , vol., no., pp.1193-1196, 12-16 Sept. 2011

W. Hu, Y. Tang, Y.Zhang, J. Gu, S. Tamaru, J. A. Bain, L. R. Carley, R. F. Davis, G. K. Fedder and D. S. Ricketts, “TI/TIO2 nanodevice fabrication using compliant probes and CMOS probe-arrays,” Technologies for Future Micro-Nano Manufacturing, Napa Valley, CA, Aug. 2011.

D. Arumugam, J. Griffin, D. Stancil and D. S. Ricketts, “Higher Order Loop Corrections for Short Range Magnetoquasistatic Position Tracking,Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on , vol., no., pp.1755-1757, 3-8 July 2011

M. E. Karagozler, A. M. Thaker, S. Goldstein and D. S. Ricketts, “Electrostatic-actuation generation and control of micro robots in a post-processed HV SOI CMOS,Circuits and Systems (ISCAS), 2011 IEEE International Symposium on , vol., no., pp.2509-2512, 15-18 May 2011

W. Hu, S. Tamaru, J. A. Bain and D. S. Ricketts, “High Current Pulse Generation for Thermal Surface Modification using Standard STM,” Int. Conf. Electron, Ion, Photon Beam Technology and Nanofabrication, May. 2011.

J. R. Smith, D. S. Ricketts and J. A. Bain, “Localized thermal modification of surfaces via pulsed electron bombardment from an STM tip,” Int. Conf. Electron, Ion, Photon Beam Technology and Nanofabrication, May. 2011.

D. Arumugam, J. Griffin, D. Stancil and D. S. Ricketts, “Long Range Magnetoquasistatic Position Tracking using a Simple Active RFID Tag,” IEEE Int. Conf. RFID, Apr. 2011.

S. Tamaru and D. S. Ricketts, “Influence of the bias field orientation on the interaction strength between two closely formed spin torque oscillators,” Int. Magnetics Conf., paper CO-05, Taiwan, Apr 2011.

E.R. Evarts, R.A. Booth, L.R. Shah, Y. Tang, S. Tamaru, D.S. Ricketts, J.A. Bain, S.A. Majetich,”Sub-30 nm Magnetic Tunnel Junction and Spin Valve Nanopillar Analysis Using Conductive Atomic Force Microscopy,” Int. Magnetics Conf., paper BB-03, Taiwan, Apr 2011.

2010

Journals

D.S. Ricketts, J. A. Bain, Y. Luo, S. Blanton, K. Mai and G. K. Fedder, “Enhancing CMOS using nanoelectronic devices, a perspective on hybrid integrated systems,” Proc. of the IEEE vol.98, no.12, pp.2061-2075, Dec. 2010

R. Evarts, L. Cao, D. S. Ricketts, N. D. Rizzo, J. A. Bain, and S. A. Majetich,Characterization of conducting atomic force micrsocopy for use with magnetic tunnel junctions,” IEEE Trans.vol.46, no.6, pp.1741-1744, June 2010

Conferences

J. R. Smith, W. Hu, Y-Y Dang, O. Ozcan, M. Sitti, J. A. Bain, D. S. Ricketts, R. Davis, “Scanning Probe Nanomanufacturing on Si: Surface Characterization of the Process Technique,” Materials Research Symposium, paper G1.5, Nov. 2010

E. R. Evarts, M. Moneck, R. A. Booth, C. Hogg, D. S. Ricketts, J-G Zhu, J.A. Bain, and S. A. Majetich, “Spin Torque Switching of 26 nm Diameter Magnetic Tunnel Junction Using a Conductive Atomic Force Microscope,” Conference on Magnetism and Magnetic Materials, Atlanta, GA, paper FC-13, Nov. 2010.

E. R. Evarts, T.T. Farkas, B. Tsukerman, L. Cao, D. S. Ricketts, G. Markovich, J.A. Bain, and S.A. Majetich, “Noise Measurements on Magnetic Tunnel Junction Nanopillars using Conductive Atomic Force Microscopy,”Magnetics, IEEE Transactions on , vol.46, no.6, pp.1741-1744, June 2010

M. W. Chen and D. S. Ricketts, “An 8.6GHz 42ps Pulse-Width Electrical Mode-Locked Oscillator,” International Solid-State Circuits Conference (ISSCC), pp. 500-501, Feb. 2010.

2009

Journals

E.R. Evarts, L. Cao, D. S. Ricketts, N. D. Rizzo, J. A. Bain, and S. A. Majetich,Spin transfer torque switching of magnetic tunnel junctions using a conductive atomic force microscope,” Applied Physics Letters 95, pp.132510 (2009).

O. O. Yildirim, D. S. Ricketts, and D. Ham,Reflection soliton oscillator,” IEEE Transactions on Microwave Theory and Technique , vol. 57, no. 10, pp. 2344-2353, Oct. 2009.

Conferences

D. S. Ricketts, L. Cao and S. Tamaru, “Spin-torque oscillator arrays as a solution for line width reduction in RF applications”, Conference on Magnetism and Magnetic Materials, paper EY-01, Washington D.C., Dec. 2009.

J.R. Smith, W. Hu, Y.Y. Dang, O. Ozcan, M. Sitti, J. Bain, R. Davis and D. S. Ricketts, “Writing Si nanowires on Si (100) with an STM tip: surface preparation and initial results,” Materials Research Symposium, M11.50, Boston, MA, Nov. 2009

D. S. Ricketts, T. Schlesinger, Y. Luo and J. Bain, “Materials and Devices for Hybrid CMOS Circuits: Expanding the Functionality of Nanoscale CMOS,” Nano-DDS Conference, Ft. Lauderdale, FL, Oct. 2009 (Invited).

D. S. Ricketts and S. Bruck, “Stochastic Logic”, NRI-MIND, Architectures for post- CMOS switches (Invited), Notre Dame, IN, Oct. 2009.

2008

The Designers Guide to Jitter in Ring Oscillators, J. A. McNeill and D. S. Ricketts, Springer Verlag – in preparation. Release Q4 2008.

Xiaofeng Li, David Ricketts, and Donhee Ham, “Solitons in electrical networks,” McGraw-Hill 2008 Yearbook of Science and Technology, McGraw-Hill, 2008. [PDF]

2007

D. S. Ricketts, X. Li, N. Sun, K. Woo, and D. Ham, “On the self-generation of electrical soliton pulses,” IEEE J. Solid-State Circuits (JSSC), vol. 42, no. 8, pp. 1657-1668, Aug. 2007.

D. S. Ricketts, X. Li and D. Ham, “Soliton Electronics,” (Invited) CMOS Emerging Technology Workshop, Whistler, Canada, 2007.

2006

D. Ham, X. Li, S. A. Denenberg, T. H. Lee, and D. S. Ricketts, “Ordered and chaotic electrical solitons: communication perspectives,” (Invited) IEEE Communications Magazine, vol. 44, no. 12, pp. 126-135, December 2006.

D. S. Ricketts, X. Li, and D. Ham, “Electrical Soliton Modelocking,” (Invited cover article) IEEE LEOS Newsletter, vol. 20, no. 3, pp. 4-11, June 2006.

D. S. Ricketts, X. Li, and D. Ham, “Electrical Soliton Oscillator,” IEEE Trans. on Microwave Theory and Tech., vol. 54, no. 1, pp. 373-382, Jan. 2006.

W. F. Andress, D. S. Ricketts, X. Li, and D. Ham, “Passive & active control of regenerative standing & soliton waves,” (Invited) Proc. of the IEEE Custom Integrated Circuits Conference, pp. 29-36, Sept. 2006.

D. S. Ricketts, X. Li and D. Ham, “Taming the electrical soliton: A new direction in picosecond electronics,” Radio Frequency Integrated Circuits (RFIC) Symposium, 2006 IEEE , vol., no., pp.4-24, 11-13 June 2006

D. S. Ricketts and D. Ham, “A chip-scale electrical soliton modelocked oscillator,” IEEE International Solid-State Circuits Conference (ISSCC), pp. 432-433, Feb 2006.

2005

R. S. Friedman, M. C. McAlpine, D. S. Ricketts, D. Ham, C. M. Lieber, “High-speed integrated nanowire circuits,” Nature, vol. 434, p.1085, April 2005. [PDF]

R. S. Friedman, M. C. McAlpine, D. S. Ricketts, D. Ham, C. M. Lieber, “Fully integrated high frequency nanowire ring oscillators,” Materials Research Symposium, Mar. 2005.

D. S. Ricketts, X. Li, M. DePetro, and D. Ham, “A self-sustained electrical soliton oscillator,Microwave Symposium Digest, 2005 IEEE MTT-S International , vol., no., pp.4, 12-17 June 2005

2004

D. Ham, W. Andress, and D. S. Ricketts, “Phase noise in oscillators,” (Invited) Int. Workshop on Sip/SoC Integration of MEMS and Passive Components with RF-ICs, March 2004.

2002

D. S. Ricketts, “Current sensing and accuracy for CPU multi-phase DC-DC converters: the sub 20 mV challenge,” IBM Power Delivery Symposium, 2002.