Electronics Forum | Sat Apr 11 10:50:43 EDT 1998 | Nick Eng
| Work as a consultant and I have a project to research the pros and cons of automated optical inspection (aoi). | Would like to get names of vendors, has any one done any Beta testing of these machines. Are they reliable? | Would appreciate inform
Electronics Forum | Sat Jan 24 00:13:57 EST 1998 | Scott
| What is the lifetime for a typical solder paste ? | How long can boards be stacked waiting before the paste goes off ? Lifetime and tack time depends on: - Manufacturer - Flux/mixture - Environmental conditions Typical lifetime is dependent on stor
Electronics Forum | Thu Jan 22 03:18:02 EST 1998 | Eldon Sanders
I'll bet the rate of temperature change may be the problem. A large black thin package will heat quickly, and the package peak temp will be greater than what you measured on the board. The bottom of the package will heat slower than the top, creati
Electronics Forum | Fri Jul 09 16:50:25 EDT 1999 | Mark
There is a company named BGA Bumps that reconditions BGA IC's. Check out their web page www.bgabumps.com(below). As far as process specs you should look at the July 1999 issue of Circuits Assembly Magazine detailing many complex rework process and co
Electronics Forum | Sun Jan 11 11:37:10 EST 1998 | Bob Willis
I am currently producing a Charity Report for The SMART Group on DSRS which the Group will sell and all the money goes to Charity. Does any one know of any good articles they can send me on double sided reflow assembly ? I feel that there are only br
Electronics Forum | Tue Jan 13 16:05:31 EST 1998 | Dan Lambert
CircuitCAM is less customized than CIMBridge, however it was developed with the everyday tasks of a Manufacturing Engineer in mind, thus bringing the cost way down. Its automates virtually every step of board assembly from machine programming all the
Electronics Forum | Wed Aug 08 04:44:59 EDT 2001 | mattiasw
We are using a MY19 p/p machine from Mydata running Linux, and we are programming it from a Windows98 station, and goes through LAN to the machine when transferring our jobs. It�s a stable machine and we haven�t experienced any negative sides of runn
Electronics Forum | Fri Aug 10 15:30:38 EDT 2001 | davef
More and more pople are seeing voids in solder connections other than BGA balls than ever before. Thats because they never looked [never had the means to look] before. Now, they can't stand it and, like that zit that their mother told them not to m
Electronics Forum | Thu Aug 30 13:22:47 EDT 2001 | arzu
180deg More important are the preheat and soakzones and temp ramps. How to check: I used to do it as follows: use a TEST-PCB with fixed thermocouples and connect it to the mole. Print the profile on transparant paper. do it again e.g. each week and
Electronics Forum | Tue Sep 11 09:13:01 EDT 2001 | davef
Like most things in electronic assembly, this is not astrophysics. People have pasted boards, placed components, turned the board up-side down, run the board through a reflow oven, and generalized about which components: * Fall off the board. * Don