... As an "aftercoat" you might try some of the spray "clearcoat" that Walmart sells in the automotive section (assuming you are inthe US). It shold be tougher...
... 4.25" / 4" = about 7% smaller. As long as there are no quad sided surface mount ICs and that any DIP ICs run perpendicular to the long edge - then just...
Recently, I started making electronic circuits as a hobby and now I want to do more complex stuff like FPGAs. For that I need to solder BGAs. I'm considering...
I also would like to prototype BGA's. .review of the (dirt cheap) Aoyue hot air station http://www.picbasic.org/forum/showthread.php?t=7948 A hot plate may...
... That's ok, and presumably they don't come in PLCC carriers (a shame), but you might not want to use BGA's simply because of the soldering problem. Any...
hey!, I haven't used a hot-air station yet but I have done the over-reflow a bunch fo times and I would take the time investment into making your own rather...
... Personally, I avoid BGA's like the plague, even for work. Unless I need all of the IO pins, I stick to other packages. BGA's can be difficult to solder...
... Never mind getting them soldered down, it's getting a PWB laid out that's the PITA. Commercial board houses do it all the time but I can't think of any...
I don't believe a simple hot air gun setup will work for a BGA part with 500 pads. You need to preheat the board, and use a bottom heater to ramp up the heat...
... with ... Walmart ... be ... I use Clear Lacquer Spray, get it in the paint dept of whatever Home Improvement Store you have in your area. I also do...
Stephanie, the parts I'm looking at are about BGAs with 400-500 balls. You seem to know a lot more than me about the process. Any tips you can share are much...
Thanks to all for the useful suggestions. Unfortunately I'm stuck with BGAs for the FPGAs I want. Mark: I don't need to route all pins, only about 100 so I...
I did some tests using three types of resists; the results are in Ted-KX4OM in Photos. I tried Future Floor Finish, spar varnish, and PolyCrylic. All three...
, umn, I baked some freescale zigbee's at home in the kitchen oven a while back:(. I think they all worked but one or 2. In my tiny toaster I've done all sorts...
Sure thing. :) The machines I used to use were Summit 1200 and 1800 BGA stations. They had a fine adjustment for placement, and also used a prism system. Some...
If I want that "extra touch" for homebrew PCB's (say, something used for a presentation) I'll use model candy spray paint (Testors). Candy green looks just...
Leon, Thanks for details. Can you share the name of the company that made the boards? Incidentally, I'm also in UK (London). Btw., if you know several good...
Steph, Thanks for the excellent advice. It's really usefull for a hobbist like me (or others on this forum) to talk to someone who has done it professionally. ...
Mark, Nice boards, I haven't seen anything like that before. There are also some that look like a small PCB board with pads just just for one IC (usually a...
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