Development status of ECLAIRs, a gamma ray burst observatory for the SVOM mission

The ECLAIRs space telescope is the main French contribution to the payload of the SVOM Chinese-French mission, aiming at being the next gamma ray bursts multi-wavelength observatory. By detecting the very first lights of the gamma ray burst, the ECLAIRs telescope will be the initiator of the measurement process based on a complementary network of space and ground instruments. Since the beginning of 2006, this instrument has been developed within the SVOM international context. The whole architecture is based on a combination of 3 key solutions: the coded mask imaging, a compact ASIC-CdTe hybrid detector with thermal control, and an onboard powerful processor for gamma ray burst detection. Each of those elements has needed specific developments and optimized solutions in order to reach the expected performances.