LED lenses are made of resin. Therefore, the lenses sometimes adhere to the top cover tape due to the resin’s stickiness. When the cover tape is peeled from the carrier tape, the LEDs tilt within their cavities, resulting in mounting failure.
It is impossible to eliminate the stickiness of the lens. Please refer to the following pages for the countermeasures against the LED tilting.
3-3-2. Change the peeling angle.
As the following figures show, when the top cover tape is peeled off from the emboss carrier tape in an acute angle, the LED can be easily detached from the top cover tape, preventing it from tilting within the cavity.
The peeling angle can be adjusted to its optimal value by some of the mounters as follows: (For Panasonic CM Mounter)