Proper nozzle setup is essential to success
The first troubleshooting step is ensuring the proper nozzle / setup is being used.
This is one of the easiest steps and results in the fastest improvements.
Pick nozzles and process parameters for SMDs have been developed for many years.
The softer silicone dome of a SMT LED may require specific nozzle materials.
For standard SMT components metal or steel P&P nozzles are the norm.
Silicone domed LEDs act like a gasket and form a seal to a metal nozzle in some cases
Releasing a SMT LED after placement can be an issue.
SMT LED Vacuum Nozzles
New nozzle materials improve the placement, and release of the soft silicone LED.
Nozzles have been developed that can pick from the substrate to hold a LED flat to the pick nozzle.
There are nozzle that allows customers to pick from the dome only. This is not an issue as long as the inside of the nozzle has a smooth quality finish.
In addition to proper nozzle setup, regular nozzle maintenance and cleaning is recommended based on the operational demands of the system.