Electronics Forum | Fri Oct 16 21:17:04 EDT 1998 | Scott McKee
| | With current soldering of stranded wires to pcb assy's the wire tends to be very brittle and can break with very little movement of the wire. We use a low residue cored wire. Anybody with advice or who has seen a similar problem/knows how to over
Electronics Forum | Wed Oct 20 19:36:45 EDT 1999 | Dennis O'Donnell
Hi Mark: Running a wire under a BGA is possible, however if you plan to mount the BGA over the wire you would want to make sure that the wire insulation will withstand the heat of the reflow temperature. A more reliable way would be to lay a trace
Electronics Forum | Thu Mar 04 09:39:22 EST 2004 | Ron W
Counting leads to attach jumper wires, especially on large, fine pitch quads can be quite a challenge. Is anyone aware of any kinds of assembly aids that would assist in this process? I was thinking of inspection templates with the particular lead(s)
Electronics Forum | Mon Mar 09 15:03:41 EDT 2020 | davef
snip from https://hackaday.com/2020/03/09/pcb-finishes-hack-chat PCB FINISHES HACK CHAT No comments by: Dan Maloney March 9, 2020 Join us on Wednesday, March 11 at noon Pacific for the PCB Finishes Hack Chat [https://hackaday.io/event/169956-pcb-
Electronics Forum | Sun Mar 25 12:48:07 EST 2001 | jveloso7
I need to modify smt pcb which require numerous modifications. In stead of use multiple wires, of which would require multiple wires to the same spot. I would like to use molytabs. We used these in the microelectronic hybrids circuits and worked
Electronics Forum | Tue Mar 13 20:47:39 EDT 2018 | davef
I think of palladium coated copper with gold flash (CuPdAu) as bond wire used in chip attach. Look here: https://www.heraeus.com/media/media/het/doc_het/products_and_solutions_het_documents/bonding_wires_documents/fact_sheets/Factsheet_PdFlash.pdf
Electronics Forum | Tue Sep 26 07:46:49 EDT 2023 | robertanderson
A transformer winding machine is a specialized piece of equipment used in the manufacturing of transformers. Transformers are electrical devices that transfer electrical energy between two or more circuits through electromagnetic induction. They cons
Electronics Forum | Thu Oct 21 21:17:19 EDT 1999 | Jeff Ferry
Mark, A challenge for sure. I suggest you review two techniques for this type of rework\modification. The first method uses a special circuit track run out from under the BGA. See: Jumper Wires, BGA Components, Circuit, Track Method at http://www
Electronics Forum | Thu Dec 08 22:25:23 EST 2005 | davef
Grant Copper Oxide [Cu2O]: Color is red to a deep red that can appear almost black. Luster is adamantine or submetallic to dull or earthy if massive. Transparency: Crystals are transparent to translucent. Look here: http://mineral.galleries.com/min
Electronics Forum | Wed Oct 20 16:05:47 EDT 1999 | Mark Charlton
I knew this would happen. Someone wants to rework a bad BGA artwork by cutting a trace and adding a wire under a 292p 1.27mm pitch PBGA. Has anyone done this before? What kind AND size wire do you use? How do you hold it in place during the replc
