| 摘要 |
PURPOSE:To improve the workability while preventing the air from mixing with melted resin by a method wherein a pot for a transfer molding metallic mold is shortened down to the surface of base plate while ejecter plates are specified to be separable type. CONSTITUTION:A pot 1 is specified to be 90-110mm long with the top surface thereof almost flush with the surface of a mold base 27 while ejector plates 2, 2 covering the mold base 27 are specified to be separable type. Besides, the surface of mold base 27 is specified to be 50-60mm distant from the surface of ejector plates 2, 2 80mm distant from each other. In such a constitution wherein the separable ejector plates 2, 2 can be sufficiently distant from each other in addition to the short leng th of pot 1 that can be contained easily without being caught by anything on the way, the workability can be improved notably. On the other hand, this compact pot 1 can be adopted so that the air flowing together with melted resin in the channel of pot 1 may be reduced to be prevented from mixed with a semiconductor to be sealed causing blowholes. |
