Conformal Coating to Protect Printed circuit boards (PCB)
case studuies
Maskless Coating
Issues
- Since the coating is done by hand with a brush, the quality rate depends on the skill of the operator.
- Only certain skilled operators can be assigned to difficult manual coating processes.
- Therefore, if an operator suddenly takes a day off due to some disease or other reasons, the production volume will be limited.
- For PCBs with areas where coating is prohibited, masking material is applied before brushing, which is time-consuming.
- Worried about health hazards to operatros due to volatile compounds (VOCs) contained in the fluid.
Actions
- Semi-automatic coating systems utilizing tabletop robots and fully automatic ,coating equipment were installed.
- The coating head features both of Jetting valve and coating valve.
- To improve the environment, a "protection cover with exhaust system" was installed.
Results
- No matter who is in charge of the process can produce high quality products regardless of the skill of operators, and the yield has been improved.
- JET dispensing enables "maskless coating" and reduces the masking process. Productivity has also increased.
- Curtain coating for large areas is performed by using a coating valve. Takt has been reduced.
- Volatile chemicals are isolated from operators to eliminate concerns regarding operators' health.
PROPOSED PRODUCTS
Solution Products
OTHER CASES
Other Case Studies
Proposes semi-automation of the filling of screw-cap tubes, conical tubes and vials with chemicals and cap opening and closing operations.
Liquid metal is increasingly used for CPU heat dissipation in high-performance gaming PCs. High speed and stable dispensing with non-contact jetting is realized.
Thermal management solutions to support new technologies such as next generation of Power semiconductors, 5G, and IoT.
Jetting valve can shoot a material from below, side and angled positions, with high throughput and ensure no collision with products.
No problem even if individual workpieces have different distortion or warping, or workpieces are misaligned in the pallet.
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