Optimize Your PCB Array Design


Overview


PCB arrays arrange multiple PCBs on a sub-panel for efficient assembly. Choosing the right array configuration directly impacts manufacturing costs—but counter-intuitively, arrays with fewer parts can sometimes yield more total parts per panel.


Focus on getting the most parts per panel, not arrays per panel


When designing arrays, focus on maximizing parts per panel, not arrays per panel. You might expect that more parts on the array will equal more parts on the panel, but that's not always true. In some cases, an array with fewer parts is more efficient and yields more parts per panel.


Example: 9-Part vs 10-Part Array


Consider these two array designs: one with 10 parts and another with 9 parts. Counter-intuitively, the 9-part array performs better on the same panel size due to more efficient material utilization. The 9-part array yields 9 more parts per panel (90 to 99 parts). Over a production run, this 10% improvement delivers significant cost savings.


Array:
Part size: 1.0 x 2.0
Space: 0.062
Borders: 0.562

Panel:
Panel size: 18.0 x 24.0
Space: 0.1
Minimum borders: 0.75

All dimensions in inches

Not Optimized
10 parts per array (5 x 2)
9 arrays per panel
90 parts per panel
41.7% part/panel utilization

Not Optimized Array Layout Result

Optimized
9 parts per array (3 x 3)
11 arrays per panel
99 parts per panel
45.8% part/panel utilization

Optimized Array Layout Result


Find your optimal array configuration automatically

KwickFit evaluates every possible array design to maximize parts per panel and minimize manufacturing costs.

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How to Optimize Your Array Design


Always calculate the array within the context of the manufacturing panel size to find an optimized array design for each panel. Since your supplier may use several different panel sizes, finding the best array design for each panel size can be a complex challenge. Fortunately, KwickFit's panel calculators automatically calculate the best array design for any panel size.

To learn more about the importance of designing the array for the manufacturing panel, read our complete panel optimization guide and other array design considerations for the assembly process.

Add KwickFit to your designer's toolbox to automatically find optimized array designs for any panel size. With KwickFit, you'll consistently achieve the lowest PCB price from your supplier.


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