3.11 Double-Sided PCB | Design Rules

For many applications, it is still sufficient to use low-cost PCB technologies based on a standard FR4 base material. When PCBs are produced in this way, the layout is located on two electrically connected copper layers.

Capabilities

Feature
Standard
Design to Cost
Advanced
Learn
more
Materials FR4
UL-Approval overview
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Glass transition temperature
of base materials [°C]
135; 150 180  
PCB-final thickness [mm]
(incl. final copper and solder mask)
0.90; 1.10; 1.30; 1.65; 2.10; 2.50; 3.30 0.60; other final thicknesses
upon request
 
Tolerance PCB-final thickness For final thickness < 1.00 mm ± 0.10 mm
For final thickness ≥ 1.00 mm and ≤ 2.00 mm ± 10 %
For final thickness > 2.00 mm ± 0.20 mm
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Final copper outer layer [µm] 18 - 140 140 - 210  
Advanced technology --- Filled and capped via
Usable production area/
format [mm]
578 × 498; 573 × 500
578 × 428; 573 × 426
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It is always advisable to keep the construction and design rules as as much as possible and as minimum as necessary.
This guarantees optimum Design to Cost.

Keywords

  • Two-layer PCBs
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4.1 Base Materials | General
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