Plastic carrier tape and its production

Abstract

Abstract PURPOSE:To prevent running off of guide holes out of a sprocket even when a carrier tape runs in a high-speed, by providing recesses containing electronic chip parts in a plastic tape and guide holes having enlarged holes. CONSTITUTION:Pierced holes 4 with a diameter (f) for example are bored at required positions for carrier tape guide holes 3 in a plastic tape 1. Enlarged holes 5 with a diameter (e) for example are made by an extruding process right on the pierced holes 4. Fine pierced holes 4 with small diameter as shown (g) are bored to be a regulated size (d) in the diameter for the corner tape guide holes 3 by the extruding process. The carrier tape guide holes 3 formed by such a way serve as positioner holes (pilot hole) for recesses 2 containing electronic chip parts in the next process. The size of the enlarged holes 5 is decided by the size of a driving gear. Next, the recesses 2 are bored by an extruding process to contain the electronic chip parts.

Inventors

• 👤 Takeshi Yamamoto
• 👤 武士 山本
• 👤 Hiroyuki Kawashima
• 👤 弘至 川島

Bibliographic Details