The Spark Gap - Episode 26

The Spark Gap · 11 Feb 2015 · 1h 32m

What this episode covers

Bob Coggeshall of Small Batch Assembly and Cogwheel Circuit Works explains Design for Manufacturing (DFM) for PCBs, detailing how to prepare Bill of Materials (BOM) and centroid files for contract assembly. He discusses cost-saving strategies like minimizing BOM line items, using full reels instead of cut tape, and proper panelization techniques like V-scoring and tab routing. The conversation also covers critical layout requirements including fiducials, silk screen polarity marks, and thermal pad paste mask design for QFNs, before concluding with a look at his Nixie tube driver board featuring an ESP8266 module.

Mentioned

Companies
Small Batch Assembly, Cogwheel Circuit Works, Osh Park, Digi-Key, Mouser, Octopart, parts.io, Seeed Studio
Products
Nixie tube
Chips
ESP8266, ATmega328, WS2812B

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The summary, chapters and topics are generated from the episode’s audio by this directory, not written by The Spark Gap. The episode itself belongs to its publisher.