Datasheet

ECMF02-2AMX6
Recommendation on PCB assembly
DocID17815 Rev 3
9/13
4 Recommendation on PCB assembly
4.1 Stencil opening design
1. General recommendation on stencil opening design
a. Stencil opening dimensions: L (Length), W (Width), T (Thickness).
2. General design rule
a. Stencil thickness (T) = 75 ~ 125 μm
b. Aspect ratio =
𝑊
𝑇
≥ 1.5
c. Aspect area =
𝐿×𝑊
2𝑇
(
𝐿+𝑊
)
≥ 0.66
3. Reference design
a. Stencil opening thickness: 100 μm
b. Stencil opening for leads: Opening to footprint ratio is 90%.
Figure 24: Recommended stencil window position
Figure 25: Recommended stencil window position