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
- Consumer electronics : remote controls , controllers , inverters
- Industrial electronics : control units for automatic machines
Materials
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
Base material thickness
0.6-0.8-1.0-1.2-1.6-2.0-2.4-3.2 mm
Base cooper thinckness
18-35-70-105-140-170-200 um
Surface Finishes
Passivated Copper (OSP) –Hot Air Levelling Lead Free HAL o Sn/Pb – Immersion Gold (ENIG- ENIPIG-ASIG) – Electrolytic Gold-Immersion Silver-Immersion Tin
Solder
Green-blue-red-white-black-transparent. Some colors are also available in matt and glossy version
Silk Screen
White, black, blue, yellow, red
Mechanical finish
- Single PCB
- Panel PCB
- Panel PCB with tap
- Panel PCB with V-Scoring precuts
- Mixed technology (Drilling and V-Scoring)
- Controlled height machining
- Chamfering, Flaring
EXAMPLES OF USE
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