The carrier tape is sealed with the upper cover tape

It is to realize the basic packaging function as electronic packaging. However, as the packaging of SMD electronic components, it also undertakes the irreplaceable function of other ordinary packaging materials. Such as anti-static function, personalized packaging function, carrying and conveying function, etc.

Because to meet these functions,

This brings many restrictions to the materials for manufacturing these two products and many problems. As the title says, “belt sealing cracking problem”. But this problem is not inevitable. As long as the method is appropriate and used correctly, it can not only meet the function of SMD electronic packaging, but also be used safely without worries.

The carrier tape is sealed with the upper cover tape

I’m satisfied with it and feel at ease. In the final analysis, the sealing crack of the carrier belt is caused by the mismatch between the carrier tape and the upper cover tape. Let’s first talk about the basic materials of these two products. The general raw materials of carrier belt are PC, PS, ABS, etc. The general base material of the upper belt is pet. The material carrying the tape is incompatible with the material on the tape due to different chemical composition or melting point. Naturally, it is not easy to adhere, or it is too tight and loose. It is too light or too heavy to meet the requirements of upper belt stripping. In order to meet the compatibility between the upper belt and the carrier belt and achieve a certain effect, it is necessary to infiltrate chemical additives or combine with some chemical materials in the manufacturing of the upper tape.

Due to different producers of tape carrying materials, different effects will occur when bonding with a certain upper tape due to different formulations, different habits or preferences of various substances combined and conductive particles added. Therefore, we have always stressed that different upper belts cannot be combined with any carrier tape.

The carrier tape is sealed with the upper cover tape

Moreover, due to the different packaged components, the peeling strength after bonding is also different. It can not be the same. The only way is through experiment. Find out the products with compatible specifications and find out the suitable sealing conditions.

Therefore, the problem of sealing crack of carrier belt should be solved. It is necessary to ensure that the two products are tested, and the aging test is carried out at different times under different external environments and conditions. And ensure that the upper cover belt and lower cover belt are compatible after testing

The single carrier tape and the fixation of sealing conditions.