Electronics Forum | Thu Jun 03 14:41:06 EDT 1999 | JohnW
| | | | In a month or so, we will be getting an in-line x-ray inspection machine. It will require that we solder our most comlicated side (normally top) first. This is opposite to our process now where we solder our passive (bottom) side first. W
Electronics Forum | Wed May 17 03:00:45 EDT 2000 | Avichai Ramot
I have shifts in the placement of qfp240 components. I have this problem with al my IC machines: Fuji-Ip2,Ip3 ,siemens F-4.
Electronics Forum | Mon Jan 26 04:48:48 EST 1998 | Grant Petty
| Is there any way to implement SMT at home? | I want to assemble a prototype board of mine. | How can I hand-solder a 208-pin 0.5 mm lead | pitch PQFP -- lead-by-lead (the usual way), | or side-by-side (partial heating method)? | Alas, no SMD rework
Electronics Forum | Mon Jun 30 08:55:45 EDT 2003 | Steve Gregory
Has anybody ever done a double-sided reflow with a Altera 240-pin RQFP on the bottom? The part has a heatsink in the top and weighs just over a half-ounce... Thanks in advance! -Steve Gregory-
Electronics Forum | Mon Jun 30 10:02:37 EDT 2003 | Steve Gregory
Hi Russ! An "R" QFP is what Altera calls their Plastic Quad Flatpacks that have a heatsink in the top...they actually call them Power Quad Flatpacks. I'm familiar with the formula, of how one can figure out if there's enough surface tension for a p
Electronics Forum | Tue Apr 12 21:43:50 EDT 2016 | cmarasigan
There is an auto teach of QFP component for CM402 wherein machine can auto recognize number of pins, pin pitch. Just make sure on your part data you have selected the right reference part (Ref: 171)for QFP. For manual component recog; 1. Set Comp si
Electronics Forum | Mon Mar 04 17:47:44 EST 2019 | slthomas
The lowest peak temp. I've had the pleasure of working with is 240°C +/- 5°C. I can't imagine a manufacturer going much below that and still saying it's lead-free compatible. It would be interesting to know just how much TAL plays into the affect
Electronics Forum | Wed May 17 11:39:31 EDT 2000 | Bob P
If the shift is happening on different machines,it sounds to me like your pcba's cad data is incorrect or the board and/or fiducials are not consistent. Good Luck Bob
Electronics Forum | Fri May 19 16:47:46 EDT 2000 | Socheat Khun
Hi Ramot; I have some sugestion for you, you may want to look at part data, like lead width, pitch , length. Good Luck socheatk
Electronics Forum | Thu Feb 12 17:25:15 EST 1998 | Chuck Griffith
What is the proven industry solder attachment process for installing 240 lead (gull wing) quad flat packages with lead pitch
