SINTERED COMPACT, WIRING BOARD AND METHOD FOR PRODUCING THE SAME

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PROBLEM TO BE SOLVED : To provide a sintered compact having a sufficiently densified surface, and having excellent dimensional precision, to provide a wiring board, and to provide a method for producing the same. SOLUTION : The sintered compact 1 comprises at least one kind selected from boron, an alkali element(s) and an alkaline-earth element(s), and is obtained by being fired at ≤1, 050°C. The content of the boron, alkali element(s) or alkaline earth element(s) in the surface layer 1b of the sintered compact is higher than that at the inside 1a of the sintered compact. COPYRIGHT : (C)2007, JPO&INPIT