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Why does the carrier tape seal crack?

If the sealing of the carrier tape is cracked, this is purely inappropriate. It won’t stick even if you want to stick. This is obvious. Not at first glance. If it does not match, replace the upper belt immediately, which will not cause large losses and is easier to control and avoid. If the sealing of the carrier belt is weak, the carrier belt will be bonded with the upper belt, but it will not stick very tightly. It can be opened with a slight lift. This is similar to the first one.—carrier tape seal crack

 

With a little attention, it can be found and replaced. In this case, the main reason is that the carrier belt and the upper belt do not match and are inappropriate. Due to increased sealing force or higher temperature, although it has a certain viscosity, it usually shows up quickly.—-carrier tape seal crack

 

The sealing crack of the carrier belt may also be due to the strong adhesion and the strong adhesion, which can not be peeled off and is easy to break. The sealing of the carrier belt and the upper belt is not a problem of bonding strength, as long as it is appropriate and the EIA specification specifies 20g – 80g. However, it will be adjusted according to the sealing parts in use. Specific decisions should be made in combination with customers’ own and downstream preferences. In order to determine the multiple assembly viscosity of the seal, as long as there are no other four conditions, the “carrier strip tester” should be used to select the appropriate adhesion.—carrier tape seal crack

 

Plum blossom point cracking occurred in the sealing of the carrier belt, and the sealing was good at the beginning, but after a while, a slight white spot appeared at the joint of the carrier belt and the upper belt. With the placement time, the white spots continue to increase, some white spots are connected together, and the seal is broken. This is the most dangerous. Some upper belts have also been aging tested. However, if the performance of the upper belt itself is unstable, plum blossom point cracking will also occur. It is recommended that customers seal up and sample inspect the products before delivery, which will be safer.—carrier tape seal crack

 

Anti static is very important for carrier tape and electronic packaging. The quality of anti-static measures will directly affect the packaging effect of electronic components. For antistatic carrier and IC carrier, some additives with moisture absorption function need to be added, mainly to reduce the resistance of carrier and IC carrier. The antistatic agent has the functions of good moisture absorption and reducing surface resistance. The main component of antistatic agent is resin. Antistatic carrier tape and IC carrier tape will not decompose or deteriorate in the production process. The function of antistatic agent is to absorb moisture in the air, form a film, leak electrons and increase smoothness. It is very important to do a good job in anti-static carrier tape and integrated circuit carrier tape.