Electronics Forum | Thu Sep 09 04:51:19 EDT 2004 | Simon UK
65%), if one failed on the board i replaced all of them, and re-tested and thermally cycled them inline with our spec (-55/+80 Deg/C for 48hrs) this was a nightmare, especially when some cracks were not detected until several weeks later while flying
Electronics Forum | Wed Aug 30 07:34:23 EDT 2006 | Xray Tester
For Automated x-ray inpsection system comes in 2D and 3D. 2D also know as the transmission xray inspection where xray are generated from a fixed point source. On double side board, this does not work that well. That where 3D Automated x-ray inpsectio
Electronics Forum | Fri Apr 21 18:43:23 EDT 2006 | SD
Sorry, I have not read the article. However, I do have five years experience constantly tweaking an AOI system that ran ONE product! The strength of the machine was solder inspection. The biggest problem was component color variation and shadowing
Electronics Forum | Mon Oct 28 18:59:25 EST 2002 | tkenny007
Specs for Bow and Twist for PCBs (IPC-A-610C, 10.6. There may be an update by now). I also have a note in our quality guide referencing (IPC-TM-650, 2.4.22) and (MIL-STD-105D). In summary, a PCB should not bow more than 0.040" with all four corner
Electronics Forum | Thu Sep 03 15:43:18 EDT 1998 | Tim Flanagan
I need advice for locating 23 Gull wing LED's (all in a straight line) in the x,y, and z axis for a SMT PCB. It is a Hewlett Packard LED (P/N HMLA-QH00-01). The application uses a CCD to detect the position of a ball which floats in a resevior for
Electronics Forum | Fri Sep 04 09:33:40 EDT 1998 | Stefan W.
| I need advice for locating 23 Gull wing LED's (all in a straight line) in the x,y, and z axis for a SMT PCB. It is a Hewlett Packard LED (P/N HMLA-QH00-01). The application uses a CCD to detect the position of a ball which floats in a resevior fo
Electronics Forum | Mon Feb 14 12:07:47 EST 2000 | Dave F
Leslie: Product screens and tests of prototypes and test vehicles should be tailored for the specific goal and product. I caution your use of equations and test condition information without specific use environments and design conditions. Lawyer:
Electronics Forum | Mon Jul 15 09:03:44 EDT 2019 | dekhead
It uses the same BS position regardless of feed direction. In right feed, it passes Board under the camera and when (board @ stop) sensor detects board has passed, drops the BS and reverses conveyor direction. There is "Right Feed Delay" parameter to
Electronics Forum | Tue Jul 30 11:31:37 EDT 2002 | Bob
Be careful when using a sticker, if it is too thick it can affect the print, you may get leakage which can cause the underside of the stencil to get dirty. Another option depending on the quantity is to segregate the boards so that you do not have t
Electronics Forum | Tue Aug 09 17:01:59 EDT 2005 | dougt
Is there a need for a professional conveyor swapper? Could I start my own business and make enough money doing something like this? I haven't worked on this conveyor but I'm sure I could figure it out. As it was said previous it's probably only a c
