Patent ID: 9184062
Filing Date: 2015-11-10
Classification: B22D,C23C,H01L

Abstract:
1. A metal filling apparatus filling a molten metal into a minute space formed on a surface of an object to be processed to have an opening in said object surface, comprising: a processor body having a recess portion defining an airtight processing chamber in which the object to be processed is held, the processor body including a first body holding the object to be processed within the recess portion, and a second body having a pressing portion to be airtightly fitted into the recess portion, a molten metal supply including a supply tank in which a metal in a molten state is stored, a supply pipe one end of which is connected to the supply tank and the other end of which is connected to the airtight processing chamber of the processor body, and a supplier which is interposed in the supply pipe and which supplies the molten metal in the supply tank into the airtight processing chamber through the supply pipe; and a molten metal return configured to recover the molten metal supplied into the airtight processing chamber, the molten metal return including a first actuator operably coupled to at least one of the first and second bodies to cause relative motion between the first and second bodies in both approaching and separating directions, the first actuator being configured to cause at least one of the first and second bodies to approach the other of them so as to push the molten metal supplied into the airtight processing chamber out of the airtight processing chamber, and functioning as part of the molten metal return.