The present invention provides a megacell 100, which is divided into a plurality of picocells 102. In this case, an effective cross section of the outlet may be larger than an effective cross section of the inlet. The metallic clip is disposed against the housing to press the electronic package upon the contacts. This light is input to the PCS, in which the PCS separates p-polarized light and s-polarized light at the polarizing beam splitter. An electrical device may comprise a resistive heating element adapted to emit thermal energy. The output buffer further including a pre-biasing stage for pre-biasing the control terminal of the pull-up transistor and a pre-biasing stage for pre-biasing the control terminal of the pull-down transistor in order to bring these transistors to the turning-on threshold.