Electronics Forum | Thu Oct 26 08:59:57 EDT 2000 | ptvianc
Performing a wetting balance test would be very difficult. The flux cored wire "configuration" is just not compatible with the methodology of the wetting balance test. If the wetting balance is a must, then you might ask the vendor for the flux for
Electronics Forum | Wed Mar 04 22:24:28 EST 2015 | SKR
We are using Nutek NTM4910-XL laser marker to etch 2D barcode on all our boards. We added solid silkscreen box on all our boards to create contrast. When we laser etch them, we just burn the silkscreen box so that we can see the soldermask under it c
Electronics Forum | Thu Dec 08 08:13:48 EST 2005 | grantp
Hi, Copper oxide is green right? So the green residue after a few days is corrosion of the wire? Regards, Grant
Electronics Forum | Wed Apr 17 03:37:29 EDT 2019 | mahammansoor
Hi, I work in a Cable and Wire manufacturing company. We are currently working on an order of Automotive wires that require strict RoHS compliance. What are the RoHS compliance strategies that we can implement at the production line (PVC and Copper
Electronics Forum | Mon Aug 27 08:03:32 EDT 2007 | davef
Actually, you will be soldering and wire bonding to the palladium layer, so we should have asked if you checked that layer, rather than the nickel. We not sure of the source of the copper that your see on EDX. It's possible copper from the pad migra
Electronics Forum | Thu Jun 08 11:37:44 EDT 2017 | jkitt84
davef, thanks for feedback. I talked with a plater who said they put copper before silver when plating brass. Would a complete stack of: Brass part, then 0.0001-0.0002" of copper, then 0.0005" of silver, then Tarniban anti oxidation. Sound reasonabl
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 | Tue Mar 27 04:39:27 EDT 2012 | andrzej
Have you got some experience with using laser (CO2 or fiber one) to label with barcode your PCBs ? So far I thought it is easy process but now we do tests with many PCBs covered with diffrent soldermasks and fiber laser as well as CO2 has same probl
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
