Printed Circuit Board Cleanrooms
As technology advances, the volume of electronic devices become smaller and smaller space, increasing density of electronic components, PCB wiring density is increasing
Printed Circuit Boards are typically manufactured in ISO 7 or 8 Cleanrooms with attention to the consistent temperature humidity control.
The Cleanroom is used to reduce contamination between the line width of the circuit boards, the smaller the line width and spacing, the more particles can cause failure.
As most films used in the manufacturing of multilayer circuits are hydroscopic, printing them at a consistent temperature and humidity so that the layers align properly.