Electronics Forum: ublox and castellated (Page 1 of 1)

QFN's and LGA's

Electronics Forum | Wed May 20 17:56:51 EDT 2009 | dyoungquist

I have attached a pdf showing the dimensions for the QFN we placed. First, The pins on the part are not only on the bottom side but also wrap around to come up each of the 4 sides of the part as shown in the side view in the attached pdf. This i

Indium No-clean and Inert Reflow oven (N2)

Electronics Forum | Wed Jul 31 14:08:22 EDT 2002 | Dave G

Used this paste on ENIG boards W/O N2 and had very good results. (0402's,BGA's,16mil FP) Never had the need to use N2 with this paste on our products. Running with N2 shouldn't hurt anything. The wetting properties should get even better than they ar

UBLOX Tim-4A reflow problem

Electronics Forum | Mon Dec 18 16:13:15 EST 2006 | darby

AJ, No overprint. We have components in very close proximity that precluded that. Also we have differing areas of thermal relief for the pads from a large backplane, from none at all to open blocks to individual pad relief. After a few more experimen


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