UL (Underwriter Laboratories Inc.), founded in 1894, is an international company that independently engages in safety science business. UL certification is a must for CCL products to enter the market.
According to UL regulations, CCL products are either in accordance with UL's fourteen standard infrared spectra, or are required to conduct long term thermal aging test (LTTA). Nowadays, as the electronic circuit industry is rapidly developing, CCL product categories are no longer limited to traditional FR-4 and most new products do not conform to the standard spectra. Therefore, LTTA has become an important approach of getting UL certification.
In UL third-party test data acceptance programs, LTTA requires long evaluation time and high technical requirements. Due to the long test time, the time for CCL products entering the market is greatly hindered. In order to speed up UL certification, after several years of preparation, in 2014, Shengyi Technology's long term thermal aging lab obtained approval to apply for UL Laboratory CTDP (UL Long Term Thermal Aging Client Testing Data Program) in the CCL industry in Greater China. The acquisition of this qualification enables technical researchers to carry out UL simulation test in the product development stage,shorten the UL test time, increase the pass rate of the product, accumulate LTTA related data, deepen the understanding of UL test, and guide product development.
Key Technologies and Levels
The construction of SYTECH’s long term thermal aging lab lasted for several years, and was continuously modified during the construction process. Air conditioner,exhaust pipe, activated carbon and other equipment were added to meet UL LTTA’s requirements of temperature control, ventilation, and exhaust gas control. The oven remote control system developed in cooperation with Shanghai Jinxin Electronics enables remote control of all ovens throughout the long term thermal aging lab.
Long term thermal aging lab
Benefits of Result Transformation and the Enhancement of the Industry Technological Development and Competitiveness
The Center’s lab is approved to apply for UL Laboratory CTDP in the CCL industry in Greater China. Since the Center’s long term thermal aging lab has obtained UL CTDP qualification, it means that the Center possesses complete product safety testing capabilities, technical researchers of the Center have better access to get more familiar with UL standards, test methods and principles and carry out product safety design and tests in the early stage of R&D, enabling the Center and the supporting unit to shorten products’international certification cycle and enter the international market more quickly.