| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of producing a composite member by which a large sized high grade composite member is produced, the composite member suitable for a heat radiation member of a semiconductor element, the heat radiation member formed from the composite member and a semiconductor device possessing the heat radiation member. <P>SOLUTION: In the production of the composite member obtained by compounding magnesium (Mg) or a magnesium alloy with a non-metallic inorganic material, aggregate of the non-metallic inorganic material is housed in a casting mold 10 and molten Mg or Mg alloy flows into the casting mold 10 to be infiltrated into the aggregate to form an infiltration plate. For example, the molten Mg is supplied to the aggregate from the upper side toward the lower side in the vertical direction with dead weight. After that, the molten Mg is solidified by cooling from the opposite side to the supply side of the molten Mg in the infiltration plate in one side direction. Because the unsolidified Mg in the upper side in the vertical direction is successively supplied to the lower side in the vertical direction by the dead weight in the solidification from the lower side part in the vertical direction by cooling in the one side direction, it is prevented that defects occurs intensively in the center part even in the large sized composite member and the high grade composite member is obtained. <P>COPYRIGHT: (C)2011,JPO&INPIT |
