SchmartBoard|ez QFN .65 & .5mm Pitch, 12-24 pins
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Quick Overview
Note: We����re currently out of stock, but you can buy direct from the manufacturer: Schmartboard. They also have free samples available.

This board supports 4-sided, 12-24 pin .5mm pitch and 16 pin .65mm pitch QFN (no-leads, Chip Scale) packages. Just push solder in pre-filled troughs towards the chip's connections. The chip sits inside a small inset for alignment.
SchmartBoard|ez QFN .65 & .5mm Pitch, 12-24 pins

QFN, or Quad Flat No-Lead, packages (also called Chip Scale) are very difficult to hand solder due to their lack of leads, and typically a heat sink on the bottom. This board has pre-installed solder traces that the chip sits on top of, as well as a via through which the bottom-side heat sink can be soldered. 2x2" in size. The only requirement is a tip slightly smaller than the lead size and liquid flux. Recommended tip temperature is 750 - 800 degrees F. detailed pdf Manufacturer's part number: 202-0016-01 Video demonstrating hand soldering of a QFN package:

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