Edinburgh University publishes a thesis "Miniature high dynamic range time-resolved CMOS SPAD image sensors" by Tarek Al Abbas that explores the small pixel pitch SPAD sensors:
"The goal of this research is to explore the hypothesis that given the state of the art CMOS nodes and fabrication technologies, it is possible to design miniature SPAD image sensors for time-resolved applications with a small pixel pitch while maintaining both sensitivity and built -in functionality.
Three key approaches are pursued to that purpose: leveraging the innate area reduction of logic gates and finer design rules of advanced CMOS nodes to balance the pixel’s fill factor and processing capability, smarter pixel designs with configurable functionality and novel system architectures that lift the processing burden off the pixel array and mediate data flow.
Two pathfinder SPAD image sensors were designed and fabricated: a 96 × 40 planar front side illuminated (FSI) sensor with 66% fill factor at 8.25μm pixel pitch in an industrialised 40nm process and a 128 × 120 3D-stacked backside illuminated (BSI) sensor with 45% fill factor at 7.83μm pixel pitch. Both designs rely on a digital, configurable, 12-bit ripple counter pixel allowing for time-gated shot noise limited photon counting. The FSI sensor was operated as a quanta image sensor (QIS) achieving an extended dynamic range in excess of 100dB, utilising triple exposure windows and in-pixel data compression which reduces data rates by a factor of 3.75×. The stacked sensor is the first demonstration of a wafer scale SPAD imaging array with a 1-to-1 hybrid bond connection.
Characterisation results of the detector and sensor performance are presented. Two other time-resolved 3D-stacked BSI SPAD image sensor architectures are proposed. The first is a fully integrated 5-wire interface system on chip (SoC), with built-in power management and off-focal plane data processing and storage for high dynamic range as well as autonomous video rate operation. Preliminary images and bring-up results of the fabricated 2mm² sensor are shown. The second is a highly configurable design capable of simultaneous multi-bit oversampled imaging and programmable region of interest (ROI) time correlated single photon counting (TCSPC) with on-chip histogram generation. The 6.48μm pitch array has been submitted for fabrication. In-depth design details of both architectures are discussed."
Thanks to RH for the link!
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Home / Thesis on Small Size Stacked SPAD Imagers
Orange is the first operator to speak-out across 27 countries about the risks associated with digital uses. This new campaign sets-out the Group’s commitment to ensuring that digital services remain a genuine opportunity for everyone.
Digital services give people an unprecedented ability to communicate, learn, entertain, share and connect with each other. With appropriate use, it has the ability to empower all who have access to it. But digitalisation also comes with considerable risks, and this is increasingly becoming a source of concern both for society as a whole and for our customers.
Orange has always set out to be a responsible company. We seek to ensure that our customers have all the necessary information and have at their disposal concrete tools and services that enable them to make the most of the opportunities afforded by digital services.
An awareness campaign to project this commitment, directed by Katia Lewkowicz and produced by Publicis Conseil*
Today, Orange is launching a new awareness campaign designed to highlight the potential risks inherent in the use of digital services, but also the various tools available to tackle them.
The creative concept places audiences directly in the context of a parent’s internal reflections as he offers his first smartphone to his daughter. His conflicted thoughts around introducing his daughter to the digital world simultaneously lead him to observe his own digital habits as an adult.
The film deals with the sense of responsibility that parents feel towards their children regarding the way they interact with the digital world and the importance of using their screens safely and responsibly.
Béatrice Mandine, Executive Director in charge of Brand and Communications at Orange, commented: “We have always been convinced that technology only makes sense if it benefits people, society and the planet. And we are very conscious of our particular responsibility as a major player in the digital revolution. This is why we are making this commitment to accompany our customers in their daily lives in order to ensure that they all stand to benefit from the opportunities that digital services afford.”
“Orange’s long-term strategy of placing people at the centre of technology is increasingly relevant in today’s highly connected word. To talk about digital responsibility in people’s lives, we sought out a creative concept based on emotions and human interactions. Katia Lewkowicz, with her gift for capturing those authentic moments of humanity, was therefore the perfect choice”, commented Marco Venturelli, President in charge of Creation, Publicis Conseil.
An exceptional, two-minute version of this film will air in France on TF1 shortly before 21h00 on Sunday, 15 September. The film will also be available in 30-, 45- and 60-second versions as part of a full 360-degree advertising campaign across TV, cinema, digital, print and outdoor media formats. The campaign will be rolled out across all of Orange’s 27 countries.
A commitment supported by a range of tools and information
In each country, Orange has already launched a range of concrete products and services to provide customers with information or tools designed to help them use technology safely and responsibly. These include:
§ Product innovation
§ Ma Livebox – the Orange Livebox in France has an application readily available to all broadband customers that provides control over the time that each device is able to connect to the home wifi network. The app also includes a “pause Internet” button that temporarily cuts the wifi connection, providing families with quality time ‘offline’.
§ Orange Telephone – the Orange Telephone app includes a “do not disturb” feature that customers are advised to activate when driving. This was launched across Europe, Africa and Middle-East together with a Road Safety advertising campaign.
§ Bezpieczny Starter – a starter kit offered in Poland for children who are getting their first mobile, consisting of a customised offer and a parental-control app Chroń Dzieci w Sieci.
§ Tarifa kids – offered by Orange Spain, this dedicated offer for the young includes a “kids ready” app that enables parents to supervise their children’s use of the smartphone.
§ Educational information and tools
§ Bienvivreledigital.orange.fr (Orange France) provides a large “espace des parents” section devoted to digital parenting. It also includes a section on data privacy.
§ usolovedelatecnologia.com (Orange Spain in partnership with ComunicA+) covers a large number of topics through awareness-raising videos and educational content. The website addresses issues such as cyber-bullying and screen usage.