> > But what about VQFP ? Here is one that explains some of the newer ones like QFN. Has some good tips on soldering and solder masks:
http://focus.ti.com/docs/apps/catalog/resources/appnoteabstract.jhtml?abstractName=slua271 Download .pdf (slua271.pdf, 166 Kbytes) (Requires Acrobat Reader 4.x) QFN/SON PCB Attachment Application Note Quad flatpack--no leads (QFN) and small outline--no leads (SON) are leadless packages with electrical connections made via lands on the bottom side of the component to the surface of the connecting substrate (PCB, ceramic). This application note presents users with introductory information about attaching QFN/SON devices to printed-circuit boards. -- http://www.softwaresafety.net/ http://www.unusualresearch.com/ http://www.bpaddock.com/
