Common problems and Countermeasures in the surface mount Technology (SMT) process of Hanwha SMT machines

This problem is all too common. You clearly stated that the material tape was in good condition and the position remained unchanged. However, as soon as the machine started to suck it, it either sucked it out of place or deviated, and the mounting was also crooked.

• The suction nozzle is dirty or clogged
• Coordinate offset or visual recognition error
• The tension or position of the material tape is unstable

• Clean the suction nozzle once before leaving work every day. Don't be lazy.
• Before starting, run the MARK point recognition once to confirm that the positioning is correct.
• When changing materials, tighten and secure the material tape a little, and check if there is any loose or broken material.

This is also a very annoying problem in surface mount technology, especially for ics like BGA or QFN. Once they are pasted a little crooked, they have to be repaired after soldering, which is very troublesome.

• The visual system has made an error in recognition
• The mounting height was set incorrectly
• The PCB board is deformed or warped

• Check the visual lighting Settings. If reflective components are encountered, lower the brightness or replace the lights.
• Adjust the height of the Z-axis for mounting and set it to ±0.05mm of the measured value.
• First, check the flatness of the deformed PCB board. If it is severe, do not put it on the machine and pick it out directly.

The term "flying chip" is extremely well-known in SMT. It's just that you clearly see it's stuck, but the moment you stick it down, pop! It shot up to the sky...

• Static electricity problem
• Excessive suction or unstable negative pressure
• The surface mount speed is too fast

• The humidity in the workshop should be controlled at 40% to 60%, and humidifiers can be installed.
• Set the appropriate suction force for each component. For small materials, don't set such a large negative pressure.
• For particularly delicate components, the program can separately reduce the mounting speed.

Have you ever had the experience of staring at those feeders that "love to break belts" as soon as you start work? It got stuck while sticking, and in severe cases, it might even damage the machine.

• The feeder is worn out or the spring is aged
• The material tape is damaged or of uneven thickness
• Improper operation and inadequate installation

• Regularly check the condition of the feeder and replace it if it has exceeded its service life.
• Before feeding materials, check the quality of the material tape first. If any non-standard material is found, return it or mark it in time.
• Every time you install the tape, be careful. Only when you confirm the position with a "click" can it be considered in place.

The machine kept giving alarms. It was either due to "material shortage" or "visual error". The whole morning was spent dealing with the alarms.

• The system parameter Settings are too sensitive
• The component database has not been updated
• The operating system or software version is outdated

• Adjust the error tolerance value appropriately, for example, allowing the deviation of the X/Y axis to be within ±0.1mm.
• Before each new material is added, run the database matching once to identify that the parameters have been updated properly.
• Software upgrades should be followed up. If necessary, ask Hanwha technical engineers to assist with remote optimization.