A thin film transistor is provided, which includes a substrate, a first gate layer, an insulation layer, a first sourcedrain layer, a second sourcedrain layer, a semiconductor layer, a passivation layer and a second gate layer. In a preferred example the communications network is an MPLS network and the method uses a modified version of the SIP messaging protocol. The logging sonde moves through a wellbore while making logging measurements of the formation around the wellbore.