Electronics Forum | Wed Feb 23 18:09:43 EST 2005 | Austinj
I am currently using the following equipment for low volume and occasional BGA rework: BGA-3591/CSP-3501 115V Rework System. This system is fairly inexpensive, unsure of the actual price, However, can be used to rework QFP and PLCC components.(of co
Electronics Forum | Wed Jul 20 18:08:38 EDT 2005 | russ
How long is it taking to reach the 150? We use the 020 here along with 023 and have very good results with our machine. The 023 is rated for a higher temp then the 020 but I don't know about staying power. We heat from both the bottom and the top
Electronics Forum | Mon Oct 31 20:35:58 EST 2005 | milroyperera
If I brief shifting, I checked the component before it enter the reflow oven and saw that the IC is perfectly aligned on the pads but when it comes out from the oven the IC is floated on the pads. The floating is irregular and the IC is shifted away
Electronics Forum | Sat Nov 26 05:55:04 EST 2005 | milroyperera
Hi, Does any body have the experience with wave soldering a "Gold" plated PCB with SMD assembled on it? I`m experiencing massive bridging,icicles,Shadowing & Skipping. The present soldering angle is 6 deg:,pre heating rate is 2 deg/sec , Dwell time
Electronics Forum | Wed May 03 21:20:23 EDT 2006 | mumtaz
I too use to run Ersa machines. The new engineer has gotten me kicked off them because I know more than he do. we operators are on the machines all day, so we know more than than the engineers. They may be good on the computers, but we now the mac
Electronics Forum | Tue May 02 14:56:57 EDT 2006 | Tim
8.2.5.5 Flat Ribbon, L, and Gull Wing Leads, Maximum Heel Fillet Height (E). For class 3 the heel fillet cannot touch the body of a plastic component, except for SOICs and SOTs. Why is my question? What type of failure will be the result of solder
Electronics Forum | Thu Jun 22 11:50:21 EDT 2006 | dougs
I wouldn't worry too much about the pixel comparison machines taking too long to program, it takes ages at first but once you've done a few programs you start to build a library of components. yes you may still have to slightly adjust these as you go
Electronics Forum | Wed Nov 29 01:46:10 EST 2006 | hanocete
Hi! to all, Here in our company, we sometimes received BGAs and ICs that were packed poorly(not sealed), and no MSL level written to it from our suppliers, now we subject the material for baking before using it. We use J-STD-033B table 4-1 as our cr
Electronics Forum | Fri Feb 16 13:43:07 EST 2007 | ck_the_flip
Hi Darby, Where did you get the info. that cooling rate is not-as-critical for lead-free? I'm not doubting you, and I actually want this to be the case. We don't have chillers on our ovens, and on fast profiles, we only achieve 2 to 2.5 deg. / s c
Electronics Forum | Thu Apr 12 00:25:25 EDT 2007 | raychamp007
Thanks davef! We found some SOIC & QFP with all leads having toe down problem. The heel fillet unable extend to the mid point outside bend. Do you have solutions for the problem? I have a question: How about the normal gull wing lead which is flat &
