Flexible LED lamp(LED strip) belt adopted a flexible circuit board
Flexible LED lamp belt is used in flexible circuit boards, which is we usually refer to the FPC. FPC itself as soft。Thin (generally having a thickness of 0.15 ~ 0.2mm), so the great difficulty when assembling.

1, difficulty of the circuit board print
Because FPC is too soft, too thin, so positioning became a problem. Previously, many people are using double-sided tape to fix, but the shortcomings that the printing job is finished after the double – sided tape is difficult to take down, affecting production efficiency and quality. Later someone with a jig, using in the fixture to achieve a fixed position, so although using fixture to progress than some, but because of the use of edge location is not very accurate (FPC is too soft, it will moves), will also affect the quality. Later on the use of self-stick silicone to make the jig, efficiency and quality are guaranteed.

2, the patch of difficulty
Because the LED lamp belt are relatively long ，most is 50CM long, the shortest has 30CM, SMT machine stroke are not enough，if the pasted half back again with the other half of the words, it will affect the efficiency, and because mobile positioning, so stick Precision sheet is also not guaranteed.

3, the difficulty of reflux
Because FPC lights with long, with thin, and reflux temperature lead-free solder paste is also very high, which will result in overheating and warping FPC, the impact of LED placement position thus affecting the quality of products, and if the reflux temperature down and reach the melting point of solder affect welding results.
The general practice is to use a jig, there have place of fixture hole in the LED below, so that the reflux temperature of the heating for the needs of the welding place, and its places due to fixture barrier and lower the temperature, no warping effects of welding accuracy.

4, the difficulty of repair
Because the FPC is thinner,so the perseverance of high temperature relatively short time. LED lamp belt if adverse goods need to rework the words, then you need to pay attention to the temperature of the soldering iron (not more than 300 degrees) and welding time (not more than 5 seconds), otherwise it will cause FPC blistering, soak the entire product is scrapped. So when maintenance is critical to control these two aspects, maintenance personnel Skill to master is also critical. These are some tips and considerations LED lights with the chip assembly process。