| 摘要 |
<p>PURPOSE: A method for manufacturing a multi-row type leadless frame is provided to form the fine pattern of an input and output terminal using an etched sheet in order to form the pattern. CONSTITUTION: A first etching is performed on each sheet(ST11). A circuit is formed after a lamination process is performed(ST12). A plating treatment and a delaminating process are performed(ST13, ST14). The sheet is cut into a strip(ST15). A semiconductor chip is mounted on a multi-row type leadless frame. An epoxy molding is performed(ST16). A lower part etching is performed(ST17).</p> |
