A device may include two or more line interfaces. In an embodiment, the present invention provides a toolbox of methods and techniques for mitigating the effects of noise in xDSL systems. , the tangential direction for an optical disc, compared to the direction orthogonal thereto, i. In a non-volatile ferroelectric memory, a degraded layer occurs near the interface between the PZT and the electrode due to hydrogen evolved during processing or due to diffusion of Pb from the PZT into the electrode. The inert fillers include ground quartz, ground ceramic, andor clay. The image sensor includes a plurality of pixels formed in a substrate, a plurality of color filter housings formed over outer boundaries of the respective pixels, and a plurality of color filters filled in spaces defined by the respective color filter housings, wherein the clock filter housings surround edges of the respective color filters with a given curvature.