Electronics Forum | Wed Aug 22 09:17:15 EDT 2001 | steven
if do not have x-ray inspection machine, how to verify the 1st board out from the smt placer that the BGA is placed accurately onto the solder pads. the diameter of the solder ball is 1mm. could it self align during reflow?
Electronics Forum | Wed Aug 22 10:57:59 EDT 2001 | wbu
Hi Steven, BGA�s are known for their ability to self align and from own experiance they do. There�s enough documentation on this one available (...don�t have the links present like Dave but I�m sure he will give you enough to spend some evenings rea
Electronics Forum | Tue Feb 06 11:07:43 EST 2001 | cjrjmj
I am looking for some assistance with placement accuracy studies for chipshooters(Fuji CP4-Cp642) and platform machines (GSM all configurations, Siemens HS50/S25). I would like some information on companies and recommendations on process of evaluatin
Electronics Forum | Wed Feb 07 21:54:06 EST 2001 | davef
Accuspec, Technology Information Corp., Silver Spring, MD 408-270-8900
Electronics Forum | Tue Feb 06 18:17:26 EST 2001 | davef
Most prominent placement machine suppliers understand well the capability index of their machines and can ship each machine with specific information on the capability of that machine in a very nice bound volume. You should contact the companies of
Electronics Forum | Tue Feb 06 20:57:44 EST 2001 | Kyle
The Universal GSM is a very accurate and repeatable machine. I have had one for the last 5 years and it is still repeatable to +/- .0015". I use a Robotic Vision Systems glass plate kit to check the repeatability. it has glass slugs and glass boar
Electronics Forum | Wed Feb 07 12:56:00 EST 2001 | jax
I' ll have to agree with Dave on this one. Just get the information from the Suppliers. The Glass plate, Aluminum board, Glass slugs, etc... are all used to determine if a calibration is needed or if it was succesful.( they can also give you offset i
Electronics Forum | Wed Feb 07 09:57:50 EST 2001 | cjrjmj
I did a quick some quick searches for Accuspec and saw some links to a PCB manufacturer. Is this the same company, or do you know the #?? I am not really in the equipment evaluation mode. I am looking for a system that will assist in maintaining cap
Electronics Forum | Wed Feb 07 11:19:23 EST 2001 | CAL
Precision parts and precision boards are nice for the initial evaluation but are costly for routine monthly accuracy tests. I know for a fact all the Siemens machines leaving Germany are evaluated with precision parts and board and placements are eva
Electronics Forum | Wed Feb 07 20:57:31 EST 2001 | Kyle
What are you placing on this equipment? If you are placing flip chips, you need to have a glass plate test system to verify your machine is accurate and repeatable. If you purchase new equipment and plan to place flip chips or ultra fine pitch, it
