0000000000296877
AUTHOR
G. Carini
Chalcogenide thin films for direct resistors fabrication and trimming
Abstract The fabrication of thin film resistors based on Ge–Sb–Te chalcogenide alloys is proposed. By exploiting the phase change properties of the deposited film, a laser beam is used for inducing a transition from high to low resistivity along selected paths. Conductivity changes as high as four orders of magnitude can be routinely achieved. This candidates the technique for maskless fabrication of compact precision resistors for a variety of applications.
Il metodo delle favole di Louisa Düss
Le favole, è noto, ricoprono un ruolo fondamentale nel percorso di sviluppo e maturazione psicologica del bambino. Esse riescono, come le leggende, i racconti, i sogni e i miti, con linguaggio se mplice e immediato, attraverso la metafora, a presentare in modo comprensibile e accessibile alla portata della psiche infantile, situazioni di conflitto, suggerendo soluzioni più o meno magiche. Nella loro struttura a trama leggera e aperta, sono un dispositivo che, di per sé, incrocia e condensa principalmente tre dimensioni: comunicativa, narrativa e simbolica.
Novel diamond X-ray detectors with patterned reduced graphene oxide contacts
A novel kind of detector based on polycrystalline grade diamond substrate and Reduced Graphene Oxide (RGO) contacts is presented. This detector combines some of the good qualities of diamond (i.e. radiation hardness and almost unique combination of electric, thermal and optical properties) with low- Z contacts. This characteristic together with the possibility of patterning the electrodes with standard lithographic techniques, make this detector particularly suitable for X-ray beam monitors where the intensity and the position of the photon beam needs to be measured with minimal effect on the beam itself (i.e. in-line and highly transmissive measurement). The steps needed to realize our nov…