Well that makes me feel a little better, I figured there was something I was misunderstanding or that I was way over-complicating things :) I do have hot air but it's a cheap one and I've never had much luck not blowing my chips off the board.
On Thu, Mar 12, 2015 at 10:16 AM, Erik Lane <[email protected]> wrote: > I'm sorry, I misread earlier. QFN, while possible, sucks. I was thinking > QFP when I replied. It's still possible, but it's not as easy as I made it > out to be. Without hot air I'm not sure how you could get a center pad done > if it has one. > On Mar 12, 2015 10:08 AM, "Joshua Noble" <[email protected]> wrote: > >> >> Thanks for the answers all. I'd love it if you could put me in touch with >> your guy Jerry, I'm kinda under the gun for a client project and while I >> love doing this stuff myself, this might not be the right place to put the >> time I've got left. Otherwise I'll give Eriks approach a shot. >> >> Sidenote: even though I moved away from Portland a few years ago (just up >> the road to Seattle) this list and its archive is still one of my go-to >> sources. Makes me miss pdx. >> >> On Thu, Mar 12, 2015 at 9:01 AM, Jerry Biehler <[email protected]> >> wrote: >> >>> I think a syringe dispenser with a tiny tip is going to be better than >>> smearing and hoping. >>> >>> I might be able to put you in touch with the guy that hand solders our >>> prototypes and does rework. I bet he would put that chip on there pretty >>> cheap. >>> >>> -Jerry >>> >>> > On Mar 12, 2015, at 8:55 AM, Joshua Noble <[email protected]> >>> wrote: >>> > >>> > >>> > Hi all, >>> > >>> > I'm trying to put together a board that has an NRF905 as its primary >>> component. It came back from OSHPark in pretty good shape, albeit with a >>> slightly oddly shaped pads, but making a stencil for it has proved >>> impossible. I've found places that offer metal QFN32 solder masks but >>> elsewhere I've read that people have just put a thin layer of paste over >>> all the pads and relied on the top solder mask of the board to keep pins >>> from bridging. I don't want to ruin the board and one of my NRF905s without >>> a seeking some wisdom first. Has anyone successfully done this without a >>> stencil? Any tips or tricks or words of warning? >>> > >>> > I'd send a picture of the pad but I don't have a macro lens for a >>> camera so it's very difficult to see. Many thanks in advance for any >>> suggestions, >>> > >>> > >>> > -- >>> > joshua noble >>> > >>> > _______________________________________________ >>> > dorkbotpdx-blabber mailing list >>> > [email protected] >>> > http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber >>> _______________________________________________ >>> dorkbotpdx-blabber mailing list >>> [email protected] >>> http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber >>> >> >> >> >> -- >> joshua noble >> http://thefactoryfactory.com >> >> _______________________________________________ >> dorkbotpdx-blabber mailing list >> [email protected] >> http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber >> > > _______________________________________________ > dorkbotpdx-blabber mailing list > [email protected] > http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber > -- joshua noble http://thefactoryfactory.com
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