Electronics Forum | Fri Oct 08 22:14:38 EDT 1999 | Michael
Right now,we have some problem on SMT. Cause of the flux residue in the connector. Do somebody have the same symptom? By the way, can i find something to make the flux observe easy or take a photo with the flux.
Electronics Forum | Wed Oct 06 08:41:42 EDT 1999 | Dave F
| | Hi, | | | | Help! Could anyone help to enlighten me on this? | | | | Question: | | | | If I have a CSP/BGA package of size X by Y and the standoff gap between the component and PCB is Z, What is the maximum allowable Y/Z or X/Z that using a n
Electronics Forum | Mon Aug 09 10:10:29 EDT 1999 | Gian.D
hello to everybody, we have a really satisfactory no clean process, both smt/reflow and wave soldering, but we get troubles with defects rework; does anybody know how to eliminate flux residues or how not to produce them during rework operations? Th
Electronics Forum | Thu Jul 15 18:50:43 EDT 1999 | Raeto Zryd
We intend to use VOC free fluxe in our nytro machine. Does anybody know if there can be problems with water ie. solvent residues in the tunnel. Perhaps there are some white papers available on that issue.
Electronics Forum | Thu Jan 21 19:43:16 EST 1999 | Ron Costa
What are the problems related to cleaning when using OA tacky flux to replace a PBGA. Will your standard inline cleaner be able to reach all the way under to clean all residue? BGA type is 1.27mm pitch .030 dia. ball plastic. Any info helpful! Thank
Electronics Forum | Tue Oct 13 18:28:51 EDT 1998 | Graham Naisbitt
Upinder, Using IPA does not cause the residue, it simply exposes it. Given that all fluxes leave reisdues, it follows that these MUST be benign - but how do you know, and how do you control it. You are using flux to remove oxides and give you a go
Electronics Forum | Thu Oct 15 13:55:43 EDT 1998 | Steve A
Dave, The first step would be to learn to accept the residue. IPC class 2 has no problem with it. If that is not possible, I am not sure why a no clean is necessary- but I will take your work for it. Alcohols will dry out the residue, and turn it
Electronics Forum | Thu Sep 17 08:23:03 EDT 1998 | Wayne Carlson
I need an evaluation process to prove to a customer that our no-clean process does not leave excessive residue? Any ideas?
Electronics Forum | Wed Mar 18 11:53:29 EST 1998 | Mike Masters
Is there anyone out there required by their customer to clean the finget tab contacts even after using noclean paste? We have been asked to clean even though we don't have any flux residue on the contacts. Any ideas? Mike
Electronics Forum | Tue Aug 21 04:49:02 EDT 2001 | wbu
Mugen, are you sure you get all of the WS residues out from underneath the BGA with your equipment ? I think testing that will be quite difficult. Wolfgang
