Monolayer is known when the PCB uses a single face for the production of a track . The laminate employed is in fact insulating material with only one copper side (in the finished circuit is identified as solder side or copper side)
In the case of the Bilayer the printed circuit board has conductors on two sides. Generally are metallized holes with only copper or copper coated with tin , tin- nickel, tin-lead alloy . nickel – gold, etc. In some cases may be non- metallized holes
Application Areas
CEM 1 – CEM 3 – CEM 3 thermal – FR4 TG 130-150-180-200 – Polyamide and Kapton – Roger – Arlon –Taconic – Teflon – Laminated with CTI>250 – FR4 with low Er – Ceramic FR4- Laminated Halogen Free –semiflex laminated
0.6-0.8-1.0-1.2-1.6-2.0-2.4-3.2 mm
18-35-70-105-140-170-200 um
Passivated Copper (OSP) –Hot Air Levelling Lead Free HAL o Sn/Pb – Immersion Gold (ENIG- ENIPIG-ASIG) – Electrolytic Gold-Immersion Silver-Immersion Tin
Green-blue-red-white-black-transparent. Some colors are also available in matt and glossy version
White, black, blue, yellow, red