| 摘要 |
PURPOSE:To form a high quality precise bump on an electrode pad by thermocompression and to joint a lead to a member to be jointed while suppressing damage thereon with high alignment accuracy. CONSTITUTION:A highly accurate high quality metal ball 15, previously formed stably in metallurgical sense, is sucked selectively to the tip of a capillary tool 3. The metal ball 15 is then deformed by thermocompression on a member to be compressed, e.g. an electrode pad, thus forming a nail head bump. A lead is superposed on the member to be bonded and the metal ball is pressed against the lead to form a stitch bump thus bonding the lead and the member to be bonded collectively. |
