| 摘要 |
PURPOSE:To form a lead frame without deformation in a short time by conducting plating as an island section and the nose of an inner lead section are left as they are connected and detaching the island section and the nose of the inner lead section. CONSTITUTION:The noses of inner lead sections and an island section are connected through press working or etching working, and a lead frame 10 in which inner-lead forming predetermined sections 1A and an island forming prearranged section are unified is manufactured. A required section including the inner-lead forming predetermined sections 1A and the island forming prearranged section 2A is plated 3. The unnecessary section of the plated lead frame 10 is removed through press working or etching working. The finished product of the lead frame 10 is acquired through cutting by press working, etc., by cutting lines 4. |
