一、Laser cleaning application

When printed circuit board factories, wafer foundries, or packaging testing factories conduct product testing, using micro probes to measure the conductivity of the product can cause contamination to adhere to the surface of the micro probes during inspection and testing. The contamination affects the conductivity characteristics of the micro probes, resulting in significant errors between the test results and the actual situation, which affects the correctness of product testing. Introducing laser cleaning technology into probe cleaning, using laser energy to directly remove pollutants attached to the surface of micro probes, achieving the effect of micro probe cleaning and providing the function of repairing and regenerating micro probes.

二、Laser cleaning technology

Using laser cleaning technology to remove pollutants attached to the surface of micro probes, laser cleaning is used to remove the pollutants attached to the surface of micro probes with the energy of the laser, achieving the effect of cleaning micro probes. The conductivity characteristics of the cleaned micro probes can meet the standards, and then the micro probes can be regenerated and used. Laser cleaning technology utilizes the collision pressure generated by the laser irradiation on materials, that is, the light pressure P=I/c (P is the light pressure, I is the light intensity, and c is the speed of light) directly generated by photon impact, combined with the photothermal effect to generate explosive pressure on the material, to remove or directly vaporize pollutants attached to the surface of micro probes.

Probe cleaning, mold cleaning, surface treatment, rust/copper rust/dirt cleaning, etc

1. Easy to operate, 2D cleaning speed, higher efficiency, leaving no dead corners.

2. Good cleaning effect, reducing human instability operation.

3. When dirt decreases, it can improve product testing yield by approximately 2% -4% and reduce costs.

4. When the probe is free of dirt, the underlying gold plating will not be damaged, so the PIN can be used for a long time (extending its lifespan), saving the cost of PIN consumption and replacement time.

5.No pollution to the workpiece, no harm to employees, high safety.

Laser probe cleaning can improve efficiency and reduce costs. With cleaning, probes like pogo pins cannot be used after about hundreds of thousands of uses. However, if not cleaned and used for too long, not only will the product testing yield decrease, but also the probe life will be shorter than hundreds of thousands of times due to the peeling of the gold plating on the bottom layer of the probe. As a result, the cost has increased.