Make Printed Circuit Board

Printed circuit board standards ensure that the minimum level of safety is maintained according to Underwriters Laboratories (UL). Safety Standard UL 796 covers the requirements for both rigid and flexible printed wiring used in electronic devices and appliances, while the IPC sets further safety guidelines.

Meeting Printed Circuit Board Standards

When making a printed circuit board, the manufacturers test for flammability, maximum operating temperature, heat deflection, electrical tracking and support of live electrical parts. For increased safety, the raw materials used in fabrication are often tested based on the same rigid standards and available for preselection from component suppliers. In addition, currently available software can run through many of the end product tests virtually. Software testing does not take the place of a final real-world quality and safety test done by the manufacturer before shipping custom printed circuit boards to customers.

Materials used in the fabrication of printed circuit boards should have a UL flammability rating of 94V-O, which is required in electrical devices and insulators. UL 94 is the Standard for Flammability of Plastic Materials for Parts in Devices and Appliances. The V-0 indicates that the material was tested in a vertical position to make sure it self-extinguishes within a specified time after any ignition source was removed. On a wired circuit board, this means the board will not spread a fire to other components should it spark or flame up.

By using materials that meet IPC and UL safety standards, Almatron provides high-quality custom circuit boards to companies producing electrical devices. The company performs a final electrical inspection before packaging.