| 摘要 |
<p>(1) A radiation type BGA package formed by joining a metal radiation sheet to one surface of a plastic circuit board having a notched space at the center thereof, the package being provided with a tightening member for joining the plastic circuit board and the radiation sheet together. A tightening member may includes a caulking member, a rivet, a screw, an eyelet or a tubular rivet. Especially, a dam-use member to be fixed by a tightening member is preferably provided. (2) A radiation type BGA package comprising a circuit pattern provided inside a plastic circuit board, a radiation sheet and/or a dam-use member being electrically connected with part of this circuit pattern via a tightening member. A tightening member covered with solder is preferably used.</p> |
