Electronics Forum | Mon Aug 11 15:44:41 EDT 2008 | stimpk
Although its a fairly rough image to look at I'd think you more of a reflow or paste issue. Looking at the two resistors, they don't look so good either. Although they maintained their placement alignment the solder does'nt appear to have flowed cor
Electronics Forum | Tue Aug 12 07:35:23 EDT 2008 | stevezeva
Hi, Is the footprint per the component manufacturers recommendations? The reason I ask is because it kinda looks like the pads are extending beneath the component. Could cause the part to float up on top of the solder and not allow the leads to wet
Electronics Forum | Fri Aug 08 08:01:29 EDT 2008 | mmjm_1099
I use a XP242 and like the machine but it does have limitations on vision system. I am unsure if those same limitations apply for the XP243. If you need a good reference of a tech on these machines call IBE, SMT Equipment and ask for Jim Bozak. When
Electronics Forum | Wed Aug 20 08:05:06 EDT 2008 | pjc
They are faster today, but still not up to fixed-pin machine speeds. They tend to be 7x to 10x slower. Any of the machine suppliers can run a test evaluation and give you a report on test coverage and test times. There are techniques to make them fas
Electronics Forum | Mon Aug 11 08:56:28 EDT 2008 | ethancw1sel
The technical support department at Hover-Davis has been very supportive in getting our issues cleared up. And they continue to be so. I was just trying to guage other operators trends with them. I believe we own some odd 600 feeders of various si
Electronics Forum | Fri Aug 08 16:55:20 EDT 2008 | thaqalain
On a specific shop order we face the trouble of wrong polarity for LINEAR VOLT REG. This is happened b/c components were situated diagonally opposite way in the reels. Here are suppier details: ST MICROELECTRONICS P/N: L5973D013TR Can we leave b
Electronics Forum | Mon Aug 11 08:47:31 EDT 2008 | davef
Your MPI (Inspection Procedure) is certainly flawed. Your MPI should have caught this on the first board your produced, before it was reflowed. For help convincing yourself the part is rotated 180*, your choices are: * Get the pin-out of the compone
Electronics Forum | Mon Aug 11 11:13:05 EDT 2008 | davef
So, how did you get some parts going one way and other parts going another way? It would be highly unusual to receive a reel packaged that way. No, don't send the data sheet. We can see that Vcc is on pin 8 of the part. What pin of this component do
Electronics Forum | Mon Aug 11 07:27:32 EDT 2008 | eyalg
We had experienced two (2) A BGA which fail (detached) off the board. Surprisingly we noticed that most of solder joints remains on the board leaving perfectly exposed and clean pads on the on BGA package (virgin pads) . Note: No mechanical stress wa
Electronics Forum | Mon Aug 11 10:45:04 EDT 2008 | eyalg
I assume you mean the balls of the BGA, not pads > (laugh it up guys - I said balls). If so, you > may have a no-lead BGA or a high temp BGA. hi I mean that the the balls were left on the board and the BGA pads were found clean. What do you
