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SUMMARY:Exceptional IEL seminar on Low-Power Analog Electronics: CMOS Pixe
 ls & Readout Chains for Low Noise Low Power Photonic Sensors
DTSTART:20210226T100000
DTEND:20210226T110000
DTSTAMP:20260406T064244Z
UID:d988125df5fd258fcbc653e248edc192f4bca391f7e5d0a323c6e177
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Assim Boukhayma is chief scientific officer and board memb
 er of Senbiosys SA\, Switzerland. He is also a guest scientist at EPFL\, S
 witzerland. He was born in Rabat\, Morocco in 1988. He did the preparatory
  classes for graduate engineering school at Lycee Moulay Youcef\, Rabat\, 
 Morocco\, and was awarded with the French Moroccan cooperation excellence 
 scholarship to pursue engineering studies in France. He received the gradu
 ate engineering degree in telecommunications and the M.Sc. in microelectro
 nics and embedded systems architecture from Institut Mines Telecom\, Brest
 \, France\, in 2012. He was awarded with the graduate research fellowship 
 for doctoral studies from the French atomic energy commission (CEA) and th
 e French ministry of defense (DGA). In 2017\, he received the Ph.D. degree
  from the Swiss Federal Institute of Technology (EPFL)\, Lausanne\, Switze
 rland\, in the subject of Ultra Low Noise CMOS Image Sensors. He received 
 the Springer thesis award in recognition for his outstanding PhD research.
  In 2018 he co-founded Senbiosys SA Neuchâtel\, Switzerland. His work ent
 itled “An ultra-low power PPG and mm-resolution ToF PPD-based CMOS chip 
 towards all-in-one photonic sensors” was awarded best journal paper runn
 er up award in 2020 by the IEEE sensors council.\nFrom 2017 to 2020 he wor
 ked for the Integrated Circuits Laboratory\, EPFL leading the team of CMOS
  photonic sensors. From 2012 to 2016\, he worked with the CEA-LETI\, Greno
 ble\, France\, in the frame of his Ph.D. research. In 2012\, he did his M.
 Sc. thesis research at CEA-LETI on the design of a low-noise CMOS THz came
 ra. From 2010 to 2011\, he worked with Bouygues-Telecom as a Telecommunica
 tion Radio Junior Engineer.\nAbstract: Imaging and photonic instrumentatio
 n systems implement different sensor technologies going from charge couple
 d devices (CCDs) in light intensity mapping applications to single photon 
 avalanche diodes SPAD or photon multiplication tubes (PMT) for photon coun
 ting and time resolved imaging.\nDuring the first decades of digital imagi
 ng\, CCDs were the device of choice when it came to noise and sensitivity 
 performance while CMOS image sensors occupied the spot of miniaturized and
  low-cost imaging applications.\nThe introduction of pinned photodiodes to
  the CMOS image sensor process (CIS) and the groundbreaking improvements o
 f this process in terms of quantum efficiency\, noise\, speed\, and miniat
 urization\, together with the advantages it offers such as low voltage ope
 ration and full integration\, ended the show for CCDs in the last decade.\
 nThis talk presents a set of techniques that CIS designers can implement t
 o reach the ultimate noise limit on a PPD based CIS readout chain: the dee
 p-sub-electron noise at room temperature. The journey to reach this goal i
 s described\, covering aspects related to noise sources and mechanisms in 
 image sensors readout chains as well as design techniques to reduce noise 
 at both ends of the analog readout chain.\nThis talk shows that ultra-low-
 noise CIS does not only benefit imaging applications\, but also low power 
 active light sensing applications such as Time-of-flight (ToF) for distanc
 e ranging and photoplethysmography (PPG) for wearable health monitoring.
LOCATION:https://epfl.zoom.us/j/81153179432
STATUS:CONFIRMED
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