Phenolic substrate Single Sided PCB is particularly suitable for less demanding applications.The phenolic substrate is coloured brown, and is commonly seen in older electrical equipment. It is easier to cut and drill compared to fibre-glass PCB
However, it is not as robust, and is not suitable for use in situations where vibration or flexing is present. Care in soldering is recommended, as excessive soldering temperature or times can lead to charring more readily than fibre-glass substrate.
The positive resist has good exposure latitude and can produce very detailed track layouts when a suitable artwork and processing is used.