UV Laser Depaneling: Does Edge Charring Really Affect Conductivity?


“What’s that discoloration on the edges?”

That’s the question asked most often with an element of shock and surprise by people who are using UV laser depaneling machines for the first time to cut PCBs from FR4 and polyimide. The simple answer is that some edge charring occurs on thicker materials like FR4 and the “discoloration” is a carbon residue produced on each pass of the laser. In most cases, the edge charring is just a cosmetic issue that does not affect PCB quality. The biggest concern is that the carbon dust may be conductive and may somehow contaminate or short-circuit components populating the board.

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Unlike Your Weld Seam, Quality Control is Something You Want to See

You can’t fix what you can’t see. How many times have you wished you could monitor exactly what’s going on in your laser plastic welding system during production? Fortunately, today, some laser plastic welding systems provide that high level of visibility with their built-in quality control features.

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UV Laser Depaneling is a Home Run Waiting to Happen

Putting together an automated SMT assembly line is like building a sports team. You’re looking for the best available player at each position and those you can count on to deliver the highest level of performance week in, week out. But like the kid with untapped talent who sits on the bench game after game, UV laser depaneling is often overlooked as a key component of the SMT assembly line.

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Protecting Intellectual Property with In-house PCB Prototyping

Some of you may remember the days of sketching your breakthrough ideas for new products on a napkin at a diner or in a spiral-bound notebook on your desk. There it was – the fruit of your imagination on paper, which you kept in a safe place away from competitor’s eyes until you could push it through to production. Today, your imagination comes to life more often on a computer screen or tablet with a design schematic ready to send out to a third-party for rapid PCB prototyping.

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