A method and apparatus are described for handling local Internet protocol access connection during circuit switched fallback and handover. The receipt of the local connection setup message at an entry point into a transit network initiates the setup of a transit network connection through the transit network. The obverse side polymer coating layer contains 50% by mass of polyethylene resin having MFR between 10 and 20 and a density between 0. In addition, the disclosure provides a DNA analyzer to act on the microfluidic chip to perform an integrated single chip DNA analysis. This provides a semiconductor apparatus with a highly-reliable through electrode and a method of producing the apparatus.