hi dear atul, well come in the group of mems. i am also a beginner in this griup but i think little bit old. i am a pg student and working on mems as dissertation work. " NO SUCCESS IS FINAL AND NO DEFEAT IS LAST, AS U KNOW THAT SCIENCE IS LEARNING BY DOING , THERE IS NO DEVELOPMENT WHEN U R SATISFIED. RESEARCHERS NEVER SAYS IMPOSSIBLE. THEY MAKES THINGS TO BE DONE." O,.K. BYE. RAVINDRA MUKHIYA M. TECH. INDIA ___________________________________________________ Meet your old school or college friends from 1 Million + database... Click here to reunite www.batchmates.com/rediff.asp