Electronics Forum | Tue Sep 09 09:33:40 EDT 2008 | dphilbrick
Only with selective solding. Those would be too tall to do a second wave.
Electronics Forum | Tue Sep 09 09:02:39 EDT 2008 | floydf
We are quoting a job that has about 30 50 pin D connectors on one side of the board, and about 10 on the other side. Barring any stroke of genius, we would wave solder one side, and hand solder the other side. Does anyone have any suggestions on how
Electronics Forum | Tue Sep 09 10:36:35 EDT 2008 | davef
We'd use a hot air gun like a Leister [800-700-6894 http://www.hotairtools.com/products.htm] hot air soldering tool with a nozzle for your connector. We have no relationship, nor receive benefit from the company referenced above.
Electronics Forum | Tue Sep 09 10:52:03 EDT 2008 | leemeyer
If the connectors can withstand reflow temperatures you might consider solder preforms. I have personally never tried them. I beleive that you can get them in any configuration desired. Indium and Alpha are some suppliers that I am aware of.
Electronics Forum | Thu Sep 11 03:42:40 EDT 2008 | muarty
Again, if the connectors can stand reflow temperatures you have the option of intrusive reflow (pin in paste)where you print paste over the holes for one of the connectors. I have did this before on a slightly different type of connector. Works prett
Electronics Forum | Fri Dec 11 07:57:49 EST 1998 | GCollier
Has any body tried reflowing QFP's on both sides of a board.
Electronics Forum | Thu Jul 14 15:20:15 EDT 2005 | Erik
Putting on the BGAs are relatively easy, it's the X-ray inspection of BGAs on both sides that can get tricky.
Electronics Forum | Fri Jul 08 18:48:50 EDT 2005 | mdang
Hi, We are a Contract Manufacturing and have a project which has a few Xilinx BGA on top and bottom side. Does anyone run a cross this or have any suggestion on how to reflow them. Thank you, -Michael
Electronics Forum | Sat Jul 09 07:53:16 EDT 2005 | davef
Search the fine SMTnet Archives for previous discussions. Here's an example of a recent thread similar to yours http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=35114
Electronics Forum | Wed Jul 13 16:51:28 EDT 2005 | KT
we do it all the time. We havent had any problems with the BGA's. But, you dont want BGA right beneath another BGA.
