Cover tapes typically utilize a polyester or polypropylene film as a base substrate, which is then laminated with or coated with various functional layers. Common functional layers include an adhesive layer and an anti-static layer. One specific structural configuration consists of at least a substrate layer, an adhesive layer, and an anti-static layer; this anti-static layer contains inorganic anti-static agents and wax.
For cover tapes specifically designed for use with paper-plastic carrier tapes, key technical specifications may include a thickness of 52 ± 5 μm, a width of 5.25 ± 0.05 mm, an adhesion strength of 20 ± 15 gf/5.25 mm, a tensile strength of 2.2 ± 0.8 kgf/5.25 mm, an elongation at break of 150 ± 50%, and a surface resistivity of ≤ 10¹² Ω .
Certain series of cover tape products are free from any environmentally hazardous substances and have obtained SGS certification, thereby qualifying as eco-friendly products.
