Electronics Forum | Wed Apr 26 17:33:24 EDT 2000 | John
I agree with what has been said, P pattern takes some playing with, but length and width need to be what the machine is seeing not actual (use trace). The biggest improvement I got was slowing the frontlight scan speed to 50% of backlight setting in
Electronics Forum | Mon Jun 01 05:23:40 EDT 2009 | kircchoffs
hi manuel, you can try vision 180 frontlight. treat DPAK as two leaded part. assign the the upper and lower leads at 1 and 3.
Electronics Forum | Wed Mar 29 23:52:45 EST 2006 | ____
Using the 120,121,122 series is what you should try first frontlighting. The P Pattern will probably be "4". If this does not work, blacken the background disk (paint) and then use vision type 124. This will give you a great image if the 120 series d
Electronics Forum | Tue Jan 02 02:30:18 EST 2007 | _____
Ahh yes, 254. Don't give up on the other vision types. 254 can give you skewing as well. Your width and height are awfull close. Even with the 0.5 tolerance it is using the tolerance and saying that it is OKAY. Maybe what you measure is 1.8mm for wit
Electronics Forum | Wed Apr 24 03:24:53 EDT 2002 | Gang shen
today I succeed placing the BGA at the other table(table2), the part data is only changed with "pitch_limit"=50%,lead_check_ area=50%,lead_brightness=0. but when I process vision at the tale1(which equipped the MTU),still failed,the error message is
Electronics Forum | Fri Jun 24 01:01:41 EDT 2005 | FAC
If you are only concerned with the outline and it has 4 corners, VT-10 or 254 will work with backlighting. If the FIP3 machine has a 4400 card installed, frontlighting with high I/O counts could take a while during vision processing. If your machine
Electronics Forum | Thu Apr 29 13:33:13 EDT 1999 | KEVIN SIMPSON
| | | Hi everyone, | | | We started our first machine placed shield test today.We will be machine placing shields with in the next two months. I used a Fuji Qp242 today. There were no problems with pickup etc,. just vision errors. I'm sure we will
Electronics Forum | Tue Mar 29 04:15:01 EDT 2011 | ravo
Dear All, Thank you so much for your cooperation. Actually am in continous problems with my BGA and can not assemble it using my QP242 till now, I am using the following data : Vision no. : 1 Vision Type: 230 Height: 2.32 Body Size X: 27.00 +-0.
Electronics Forum | Wed Jun 10 17:30:44 EDT 1998 | FAC
When creating part data�s for BGA or QFP style components, the line scan camera will be utilized (Camera No. 4). Using a Single nozzle type placing head, a nozzle capable of sufficient vacuum, and front lighting the part can achieve placement of a 74
Electronics Forum | Fri Jun 02 17:19:56 EDT 2000 | Big K
I am currently experiencing several problems with QFP's on one of our IP3's. The first problem is with QFP240 devices. We are experiencing a high reject rate with these parts when using vision type 100. What appears to happen is that the vision syste
