Spiros Vlassis received his B.Sc. (1994) in Physics, the M.Sc. (1996) in Electronics and Ph.D. (2000), all from Aristotle University of Thessaloniki, Greece. He has been working at principal or senior level positions for established and VC-funded startup companies. He holds full professor position in the Electronics Laboratory, University of Patras, Greece. He has worked in the development of high-performance transceiver ASICs in CMOS and BiCMOS processes for the wireless market with key role in the design of DC/AGC servo loops, multiband active RC, MOS-C integrated filters, VGAs, signal detectors/indicators, and TCXO drivers. Spiros Vlassis worked in the development of MEMS based clock generator ICs and MEMS consumer applications where he designed frequency dividers, ALC servo loops, BAW oscillator temperature stabilizer, and chopper stabilized amplifiers. Also, he has designed voltage regulators, extremely low-pass filters and step-up converters for CMOS transceiver ASICs for hearing aids. Recently Dr. Vlassis has developed a series of high speed MPHY standard compliant serial interface blocks such as burst mode CDRs, high-speed phase interpolator, PLLs and receiver jitter testing verification. He holds five patents and he has published over 70 papers in peer-reviewed journals and conferences. Spiros Vlassis’ research interests include battery less RF TAG for IoT applications, clock and data recovery and timing blocks for multi rate high speed serial links.
1996-2000 Aristotle University of Thessaloniki, Ph.D. in Electronics (March 2000), PhD Thesis: “Design of analog non-linear integrated circuits for signal processing”
1994-1996 Aristotle University of Thessaloniki, Master in Electronics (Jul. 1996), Diploma Thesis: “Pressure sensors interfacing circuits”
1990-1994 Aristotle University of Thessaloniki, Bachelor in Physics (Sep. 1994)
2018- Highly Integrated Digital Transmitter for a System-οn-Chip
2014-2019 Multi-frequency ring oscillator for high-speed wired serial interfaces
2014-2019 Multi-data rate receiver for wired high-speed serial interfaces
2009-2012 Next generation millimeter wave radio-link
2009-2012 Innovated sensors systems development with distributed intelligence
2009-2010 RF LNA design methodology
2006-2007 Frequency synthesizer for UWB receiver
1996-1998 ASIC design for smart sensor interfacing circuit
Projects with industry
2017- 2019 Low power ASIC for solid-stage relay, Low power IC for smart phone speaker (audio company customer), System design, IC design MEMS headphones (audio company customer)
2014- 2017 System design and verification of a 15GHz transceiver (Telecomunication provider)
2013–2014 System design, layout and verification of high-speed multi-Gigabit serial interfaces compliant to MIPI M-PHY standard for mobile application (startu up company)
2012–2012 Power management IC for hearing aid devices (hearing aids device manufacturer)
2011–2012 Mixed-signal IC system for the stabilization of the temperature drifts of BAW oscillator oscillation frequency (CMOS) (start up company)
2011- 2010 Power management and micripiles sensor interfacing ICs night vision products (sensor manufacturer)
2006- 2008 TCXOs based on micro-electro-mechanical systems (MEMS) and RF front-end modules (FEMs) for wireless applications (start up company)
2001- 2006 Integrated direct-conversion and IF-conversion single-chip transceiver ICs with integrated synthesizer which targeted the 2.4 and 5 GHz wireless LAN markets (start up cpmpany)
Wireless transmitter DC offset recalibration, United States Patent Application 20060099917, Kind Code A1, Inventors: Papathanasiou; Konstantinos; (Athens, GR) ; Vlassis; Spyridon; (Athens, GR) May 11, 2006, Serial No.: 269987, Series Code: 11, Filed: November 9, 2005
Apparatus and methods for implementation of mathematical functions, United States Patent Application 20060106904 (summary)Kind Code A1, inventors: Vlassis; Spyridon; (Athens, GR) May 18, 2006, Serial No.: 269988, Series Code: 11, Filed: November 9, 2005
Subthreshold MOS resistor for applications with low supply voltage. Registered by Industrial Property Office in Czech Republic, Inventors Vlassis; Spyridon; (Patra, GR); Khateb Fabian (Brno, Czech Republic), October 1, 2014.
Tunable subliminal bulk-driven transconductor for applications with very low supply voltage. Registered by Industrial Property Office in Czech Republic, Inventors Vlassis; Spyridon; (Patra, GR); Khateb Fabian (Brno, Czech Republic), October 19, 2016.
A subliminal bulk-driven circular amplifier for applications with low supply voltage. Registered by Industrial Property Office in Czech Republic, Inventors Vlassis; Spyridon; (Patra, GR); Khateb Fabian (Brno, Czech Republic), January 11, 2016.
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