Electronics Forum | Mon Apr 04 22:07:15 EDT 2005 | Dhanish
Questions and answers - what Column pitch do your CCGA have ? a) 1,27 mm?b) 1.00 mm? 1.27mm - how are the PCB pad finisched ? OSP Enig? HAL? OSP - Are you using Clean or NC solder paste? Clean
Electronics Forum | Tue May 04 13:32:05 EDT 2004 | tigerlordgm
What lead pitch, .8mm or 1.27mm?
Electronics Forum | Thu Nov 10 15:43:10 EST 2005 | 1st Article
myu, Is using a 0.6mm stencil wise? 42.5 X 42.5 has two models, the 1mm pitch has 41x41 array with 1657 I/O and the 1.27mm pitch has 33x33 with 1088 I/O. For a typical c-cga with 1.0mm - 1.27mm pitch, may requires a 2mil stencil, 1.0mm pitch gets .
Electronics Forum | Thu Jul 08 04:26:27 EDT 2010 | bks
Hello, this is my first post in this forum, but sometimes I visit it to get some news. Now we have an issue and I need your advice. Few months ago we were awarded with a project that use PTH components. We solder these components on Wave soldering
Electronics Forum | Thu Aug 03 11:32:44 EDT 2000 | bzark
Any opinion on what size aperture and stencil thickness is most optimum for Land Grid Array 1.27mm pitch with .6mm pad using SN/AG NC solder paste?
Electronics Forum | Mon Jun 07 15:12:13 EDT 1999 | John Thorup
| I was wondering what measurements are used to define pitch? Generally we would use it for the distance from lead center to lead center of an IC. For instance, an SOIC would usually have a pitch of 0.050" or 50 thousandths of an inch (1.27mm)|
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 Dec 01 12:12:07 EST 1998 | Mike
I am looking for a few PBGA 560 1.27 pitch Components. If anybody has any lying around I could buy. So that I may profile to my hearts content. Thanks Mike Cox
Electronics Forum | Tue Jun 18 00:53:09 EDT 2002 | Gang shen
we are surprised to find that ten BGA chips are excursion one line on the board,together the IP3 placed 600 BGA ,it really confused me.anyone have any suggestion for the reason? the BGA IS 20*20-16*16,pitch is 1.27.
Electronics Forum | Mon Jan 20 17:41:38 EST 2003 | James Springer; Advanced Technology Manager
Has anyone ever placed and reflowed a 1.27mm PBGA to 6 mil poly flex bonded to aluminum? If so what is the life expectancy of the solder joints?
