Electronics Forum | Tue Jul 27 11:32:01 EDT 1999 | M.L.
| | Presently protos of micro-bgas (80i/o) pitch .030/.031 | | 12BGA per assembly | | | | The board is a (.062, 4 layers) FR-4 using Dry film | | Pads .014inch | | Vias within footprint .020inch | | Vias to be filled by bottom side(solder side) only
Electronics Forum | Mon Feb 26 20:02:42 EST 2001 | davef
First, I don�t understand why your board fabricator can�t do a good job plugging your vias. Additionally, when you consider that they forgot to plug the first batch of boards, it makes me wonder if they are desirable as a supplier. Generally, we us
Electronics Forum | Fri Jun 09 17:34:08 EDT 2000 | Melanie Mulcahy
I need some information regarding the acceptability/unacceptability of using tented vias with LPI soldermask. Long story on all involved, but basically I have a board that I have had manufactured with no problems which has BGA/uBGA parts, tented via
Electronics Forum | Wed May 12 23:33:04 EDT 1999 | Matt
WARNING: This is a plug. I have read post on this site where the question is raised: "My machine can do 80 units per hour, but I am only getting 35 - WHY?" Well I have written w95/database code that reads FUJI output files (CPII,CPII,IP2 etc) and d
Electronics Forum | Wed Apr 21 14:29:58 EDT 1999 | joe devaney
| Does anyone have any experience with soldering 50mil pitch BGA's that have a via in the pad, the size is .012 The via will be masked off on the bottom side of the board. Need to know what precautions or problems if any I might encounter. The proces
Electronics Forum | Mon Jul 22 13:16:35 EDT 2002 | Claude_Couture
We are drifting deeper into market philosophy... Yes, capitalism is the motor to a healty market economy. "Running to catch up on the latest gadgets even if my 10 year old cell phone is still working fine and fills all my needs" cannot be sustained.
Electronics Forum | Fri Sep 13 19:16:34 EDT 2002 | slthomas
Would it be possible to lock out old (say, no activity in 3 months) threads from being replied to and brought back up to the top? It seems as though 9 out of 10 of these stale threads are brought back by vendors looking to plug their products, and t
Electronics Forum | Tue Jun 27 13:38:35 EDT 2006 | ChrisG
Stephen has a good point. You could buy a used oven. I know of several used ones that are completely refurbished for about 15-25K. But these are BTU P-70's and P-98's. The main problem here is frequency. Most of their ovens operate at 50 or 60
Electronics Forum | Fri Dec 08 14:35:28 EST 2006 | glynnhamer
We currently are building a pcb that has gold fingers, about 36 in a concave V overall shape from .275 on the outside edge fingers tapering down to .197 in the middle of the 2 inch span that plugs into a shelf connector. These fingers are on both sid
Electronics Forum | Sun Jan 13 19:44:02 EST 2008 | grantp
Hi, We need to solder a USB plug onto a PCB in our SMT machines, and this is the same type of plug you see on USB storage devices. It's a very flat connector with 4 SMT pins, however the hard part is the bottom of the connectors is the same level
