Quality Control Process

We are ROHS compliant, certified with ISO9001:2000 (reg. number 0109020), and approved by the UL standard (E146890).

The entire production process is monitored and controlled by our experienced QC specialists to ensure the best quality products are delivered to our customers. Our testing equipments are the most advanced and are computerised to optimise the testing efficiency and accuracy.

During the initial sampling phase, all samples must be 100% passed regarding 

• meeting with all drill hole physical requirements that are verified with pin gauge
• micro-sectioning to ensure the metal plate thickness that are met with customer requirements
• the electrical open-short circuits tests based on the E-tester and/or flying probe tester

Our quality assurance is based on the MIL-STD-105E standard and the acceptance quality level (AQL) is aimed at AQL Level II. The QC process is applied at each stage of the production flow and in particular, each PCB must be 100% passed with the electrical open-short circuits tests.

Our product quality is further enhanced with the use of de-ionised water for the wet process. Moreover, we are, by all means, concerned with the environment protection. The waste water resulting from the wet process is treated with a clean process and is reused. Below is our de-ionisation system

The water resulting from the wet process is treated with a clean process and is resused.

Final QC

Electrical tests.

DI water