Recommendation on PCB assembly

ESDAXLC5-1U2

8/12

DocID028771 Rev 1

3

Recommendation on PCB assembly

3.1

Stencil opening design

1.

General recommendations on stencil opening design

a)

Stencil opening dimensions: L (Length), W (Width), T (Thickness).

Figure 13. Stencil opening dimensions

b)

General design rule

Stencil thickness (T) = 75 ~ 125 µm

2.

Recommended stencil window

a)

Stencil opening thickness: 80 µm

b)

Other dimensions: see Figure 14

Figure 14. Recommended stencil window position, stencil opening thickness: 80 µm

Aspect Ratio

W

T

----- 1.5



=

Aspect Area

LW



2T L W

+



---------------------------- 0.66



=