At 04:04 PM 4/3/2002 -0500, Lomax wrote: >This list is also not the prime place to find advice on this, I'd suggest >the IPC Designers Forum. Butyou never can tell...
Well, I did leave a door open.... I strongly suspect that the solution is somewhere among all the suggestions made here; certainly many possible sources for the warping and fit problem were given that could be investigated, including one excellent suggestion from Mr. Haddy: >Another test: if you run two bare boards through reflow, with one >"top" facing up and the other facing down, do both boards warp in >the same direction, or is it always toward the "top" (or "bottom", >as the case may be). The former would point to a reflow issue, while >the latter would be related to board fab/design. I also suggested something that would be related: making a more thorough description of the warping, i.e., how much and in what way are the boards warped; what is the distribution, how consistent is it, etc. This information could help to interpret the results of the test Mr. Haddy suggested. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/[email protected] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
