Standard of Excellence: Delivering Excellence—A Daily Goal
Knocking Down the Bone Pile: Tin Whisker Mitigation in Aerospace Applications, Part 3
The Knowledge Base: Building the Workforce of Tomorrow With EMAC
Tips & Tricks: Assembly Panelization
January 12, 2018 | Ken Horky, Peterson ManufacturingEstimated reading time: 2 minutes
Figure 5: The cutout can be aligned so the panel can be scored rather than tab routed, saving scrap material.
The benefit to this panelization is that the line operator cannot send the panel downline with the wrong rotation. The line will not stop unless the panel is put in upside down. The line setup changes if there are bottomside components.
This may be feasible if all the components can survive a second reflow on the bottom side in your process. This array can be rotated incorrectly by the operator in process. This panelization will eliminate changeover setup, so you would build one side, return it to the beginning of the line, flip it over and build the other side without changing your printer or placement setup. This panelization also only requires you to purchase one stencil.
This array can be rotated and mirrored any way as long as the unpopulated side of the panel is up. Eliminating line stoppage due to operator orientating the panel incorrectly, there is no changeover setup between top and bottom sides. An additional benefit to this array is for PCB borders with a cutout.
Your bare board fabricator has their own set of constraints and material sizes unique to their process. Work with them and consider it during your panelization design to keep material cost down.
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