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Causes of Packaging Crack of Carrier and Cover Tapes

Oct. 29, 2021

Carrier tape packaging must be used in conjunction with cover tape, like the relationship between fish and water, a single cannot. Carrier tape and cover tape packaging, is to achieve the basic packaging function of the SMD components.

As a precision LED SMD components packaging, carrier tape and cover tape requirements are very high, such as the characteristics of the material, bearing transport, etc.. Because of the need to meet these requirements, this creates many problems for the production of carrier and cover tapes. However, these problems are not insurmountable, as long as the technology is excellent and the management concept is advanced, it is possible to produce perfect products, such as TONGXI carrier tape which is completely worry-free.

Carrier Tape

Cracking of the package

Cracking of the carrier tape package is usually the result of a mismatch between the carrier tape and the cover tape.

Let's start with the basic materials of these two products. Carrier tapes are generally made from PC, PS, ABS, etc. The material of the carrier tape is not compatible with the material of the upper tape due to the different chemical composition or melting point. Naturally it is not easy to bond, or creates a situation where it is too tight and too loose. This can result in a too light or too heavy bonding peel, which cannot be adapted to the requirements of the upper tape peel.

To satisfy the need for a compatible match between the upper tape and the carrier tape and to achieve a specific effect, chemical additives need to be infiltrated into the manufacture of the upper tape, or combined with certain chemical materials. Due to the different manufacturers who produce the raw materials for the carrier tape, different effects occur when bonding with a particular type of upper tape due to their respective formulations, such as the various substances combined, the addition of conductive particles, etc. Therefore, we always emphasise that different top tapes should not be bonded to any one carrier tape. Moreover, the components to be packaged are different and require different peeling strengths after bonding. It is not possible to say the same thing.

The only way to find out is to experiment. The only way to find the right package is to experiment with the two, to find a product with compatible specifications and to find the right packaging conditions. So, to solve the problem of cracked carrier tape packages. It is necessary to ensure that the two products are tested and aged at different times under different simulated external environments and conditions. It is also important to ensure that the tested and compatible cover and carrier tapes are homogeneous and that the sealing conditions are fixed. Please contact our experts to see more.