Island Placement with die cutting

On the surface it sounds pretty simple – make a tape die cut with an island in the middle that is non-adhesive. Even looking at the final product does not reveal the complexities of creating precise island placement on tapes. Recently CFS had the opportunity to work with a customer on a polyimide die cut requiring zone non-adhesion. This project was completed in our ISO 7 clean room using our Delta ModTech precision rotary press.

Die Cutting Polyimide

Step 1: The material that will become the “island” is laminated to a temporary liner

Die cutting polyimide

Step 2: The island is die cut and waste removed

Island placement while die cutting

Step 3 and 4: These are performed at virtually the same time with the help of camera driven computer servos. The “island” (adhesive side down) is removed from the clear temporary liner and precisely placed onto the adhesive side of another polyimide tape. By mating the adhesives, a non-adhesive island is created.

Island placement die cutting

Step 5: Another clear liner is laminated onto the exposed adhesive side of the tape containing the islands.

Island placement die cutting

Step 6: The linered tape is then die cut to the final shape and the waste removed

Die cut with island placement

Final product is a polyimide die cut with an island of non-adhesion in the middle


Custom Fabricating & Supplies is a custom converter of non-metallic materials. With advanced technologies and capabilities, we can consult on the most complex projects. Contact CFS today to discover how we can help!