Patent ID: 7931965

Claim:
A cover tape for packaging electronic components heat-sealable to a carrier tape for packaging electronic components, comprising at least a base layer, a cushion layer formed of resin A, following layer formed of resin B which is positioned directly next to a heat sealing layer and the heat-sealing layer laminated in this order; wherein Vicat softening temperature Ta of said resin A measured in accordance with ISO 306 (rate of temperature increase:50° C./hour, load: 10N) and Vicat softening temperature Tb of said resin B measured in accordance with ISO 306 (rate of temperature increase:50° C./hour, load: 10N)satisfy the Relational Expression 1 below; said resin B comprises a linear low density polyethylene; and thickness of said following layer is not smaller than 2 μm and not larger than 15 μm: Ta−Tb≧3(° C.). Relational Expression 1