A semiconductor device includes a semiconductor chip, and a multicomponent alloy layer formed on a face of the semiconductor chip, the multicomponent alloy layer being in a solid-liquid coexisting state in a specific temperature range, and including a surface having concavity and convexity caused by solidification segregation. One advantage provided by the invention includes the ability to correct for offset amounts of \u201cwavelength drift\u201d that are not divisible by an integer number of pixels in an optical detector used in the RES system. The method also includes retrieving a result set of individual media content from the search engine and extracting from the result set only individual media content pertinent to the particular geographical region of interest. Methods and apparatus are described for analyte detection and resonance frequency adjustment. In addition, a method for inhibiting non-enzymatic browning, by adding at least one of coumalic acid, a coumalic acid salt or a coumalate to a tea beverage composition. The invention is also directed to the sub-assembly and to the gliding board formed by such methods.