Researchers at the Tokyo Institute of Technology have found a novel way to reduce source and drain contact resistance, and increase carrier mobility, in amorphous oxide transistors. In particular, they are amorphous indium gallium oxide (a-IGZO) thin-film transistors that are being proposed for a form of DRAM, where memory density can be increased by stacking the transistors. The problem is ...
Announced yesterday, researchers from Surrey and Cambridge universities and the National Research Institute in Rome have used thin-film source-gated transistor (SGT) to create compact analogue circuit building blocks that can be used on flexible substrates. Source-gated transistors – SGTs – are uni-polar – they only need n or p-type semiconductor, not both. The research team built two two-transistor building blocks: ...
The University of Manchester has made a 1GHz thin-film transistor from amorphous IGZO – indium gallium zinc oxide. The devices, created with Shandong University in China, are made on a high-resistance silicon substrate using Ta2O5 gate dielectric. The material is 80% transparent, opening the door to display applications. “Making a high performance device, like our GHz IGZO transistor, is challenging because ...
Complete with substrate, an active matrix for a flexible display need only be 4μm thick, according to the Korea Advanced Institute of Science and Technology (KAIST). The matrix of ultra-thin n-type transparent oxide thin-film transistors (TFTs) for the backplane were initially fabricated on a sacrificial laser-reactive substrate. Laser irradiation from the backside of the substrate split off only the oxide ...
Printed electronics firm Thin Film Electronics has developed a near field communication (NFC) sensor for tagging bottles which can detect when a product is “sealed” and “open”. Likely to be used for tagging wine and spirits, pharmaceuticals, cosmetics and automotive fluids, the tag is designed to provide NFC-readability before and after a factory seal on the product has been broken. According to ...
Cambridge Nanotherm, the two year-old nano-ceramic specialist, has shipped its first products – a chip-on-heatsink module. The customer is an LED firm.
Guillaume d’Eyssautier, formely CEO of picoChip, has been appointed CEO of RF MEMS specialist start-up DelfMEMS. DelfMEMS has just attracted $10.5m in ‘B’ Series financing from CDC Entreprises, Iris Capital, Capitalaria, VIVES as well as previous investors (A2D Invest, Alliansys, Finorpa, Inovam, Rhône-Alpes-Création, and business angels). The new funding takes DelfMEMS total funding to date to $17m. The new funding ...
Researchers from North Carolina State University have developed an oxide semiconductor that can be doped p or n-type, claiming it to be the first. Oxides and sulphide were some of the earliest...
Thin-film is rapidly becoming the solar cell technology of choice, replacing the established crystalline technology, according to analysts iSuppli.
A US team claims to be on the way to non-volatile transistors with the production of thin-film ferroelectric strontium titanate.
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