Electronics Forum | Thu Mar 15 12:33:50 EDT 2007 | ck_the_flip
To do a profile at most companies, if you don't have a scrap board handy, you'll use the already-soldered board that's already been through ONE reflow cycle. You spend time attaching T/C's with the aluminum tape - after all, the prep-work is half th
Electronics Forum | Tue Mar 20 06:47:56 EDT 2007 | realchunks
I agree with CL. Most people blame the BGA cause it's a mystery chip to most people. Only after replacing the BGA several times do most people look else where. 90% of the time it's something else. Doing all your engineering work up front is the
Electronics Forum | Wed Mar 21 13:21:53 EDT 2007 | scooter
I wish you wouldn't have asked why! We had a rush job and the stencil maker used a frame (normally we don't use the frame type) and placed in the frame wrong so in order to get it to work we printed in both direction. So I thought maybe we should do
Electronics Forum | Tue Apr 03 01:17:57 EDT 2007 | Haris
Dear all, One of the major reason is that some components have curved shape terminations and thats why their attrition rates are high. So CORRECT THEIR VISION FILES OR IF PROBLEM REMAINS THE SAME THEN INCREASE THE TOLERANCE OF THAT COMPONENT VISION
Electronics Forum | Tue Mar 27 06:15:54 EDT 2007 | CL
Good Morning, We have 5 My machines. We process 0402's daily and have not seen any accuracy issues. We are also processing 0201's, 01005's (although not often thank God!), Micro BGA's, CSP's, etc... Definately not the fastest machines but very flex
Electronics Forum | Wed Mar 21 15:33:16 EDT 2007 | pjc
Not all OSPs are created equal. Some companies use N2 in their reflow oven to minimize oxidation during reflow. This is for double sided reflow and if wave or selective solder will be done after reflow. Get extra boards from the vendor to test. Run t
Electronics Forum | Fri Apr 06 00:08:41 EDT 2007 | barney
What software level do you currently have on your machines? If you have UPS+ 6.2.x there is a huge improvement. In the SOIC/QFP or any leaded catagory you will find a check box under the vision tab called noise filter. Check this box and the software
Electronics Forum | Sun Apr 15 19:55:52 EDT 2007 | darby
Mika, I think you will find all board houses "clean up" their customer's files to suit their shop. Depending on the severity of the change; I think they take the attitude that they will not inform you to avoid an argument going backwards and forwards
Electronics Forum | Tue Mar 27 16:39:31 EDT 2007 | dyoungquist
We replaced a manncorp machine with a MyData about 3 years ago and have been very satisfied. A Mydata machine should meet all of your requirements with the possible excpetion of the odd form parts but I am not sure any machine does those well. The
Electronics Forum | Wed Mar 28 01:02:27 EDT 2007 | John B.
Looking at the Emerald machines, they do seem like they'd fit the bill quite nicely. Other than the operating system, is one generation markedly better than the others? I have all the data on the X2 from the manufacturer's site, but what changed from
