Electronics Forum: diy and uv (Page 1 of 2)

COB and wire bond

Electronics Forum | Tue Jun 04 19:33:16 EDT 2002 | rob_thomas

Dave's estimation is pretty conservative but there is a lot of equipment out there and a lot of people happy to make a sale.Implementing both mentioned processes it's difficult and time consuming .Even if you get good training from whoever sells you

PDBE and PBB replacements???

Electronics Forum | Mon Mar 21 09:33:25 EST 2005 | davef

RoHS Substance||RoHS MCV Limits||Typical Testing Approaches Lead||1000 ppm* ||Wet chemical digestion followed by ICP (Inductively coupled plasma) or AAS (atomic absorption) spectroscopy ||||XRF (X-ray fluorescence) spectroscopy Cadmium||100 ppm ||Wet

Conductive Adhesive and UV cure adhesives dispensing

Electronics Forum | Fri Feb 21 02:00:53 EST 2003 | successmani

Hi, I would like to know how Conductive adhesives and UV cure adhesives are dispensed. I know that nonconductive adhesives are dispensed through jetter, Auguer pump annd other contact type method. I am puzzled and curious to know whether there is any

Conductive Adhesive and UV cure adhesives dispensing

Electronics Forum | Fri Feb 21 20:14:53 EST 2003 | MA/NY DDave

Hi I don't know of anything special in the ways of dispensing since they don't normally care about the differences of UV or Conductive or pastiness. The only difference is WHAT you are striving to do with the adhesive and how the adhesive moves as

First PCB and it didn't work

Electronics Forum | Mon Jan 06 20:53:23 EST 2020 | mikeyg12

Hello everyone! I have had this idea in my head to DIY a desktop KVM (without the V so I guess just a KM) board that I can solder USB A headers to with a DPDT switch. I designed the board and when I thought it was all good to go I proudly sent it of

Conductive Adhesive and UV cure adhesives dispensing

Electronics Forum | Fri Feb 21 19:49:10 EST 2003 | neil

There are a number of companies who have used traditional screen printing to depsosit standard and conductive adhesive.

Electronic Assembly - PCB cleansing and COVID-19

Electronics Forum | Fri Apr 03 08:34:54 EDT 2020 | SMTA-Gregory

We need to be careful with product to avoid introducing a new failure mode, namely corrosion and dendrite growth, especially those running no clean processes! In addition to heat (reflow, wave and some selective soldering processes) killing the vi

silicone conformal coat and electrical contacts

Electronics Forum | Fri Jan 26 16:47:35 EST 2007 | electronhose

IMHO I would avoid sprayed silicones like the plague. They can travel around your facility and cause solder wetting issues that you will never know the root cause for. Also found this e-drive article on using silicones around motors and relays. Loo

Conformal coating mask dots and halos

Electronics Forum | Thu Feb 25 07:37:42 EST 2010 | pcbrown

We are using Humiseal 1B31 and polyester dots for masking. We are spraying this in a Binks sprayer mixed at almost 1:1 with 521 thinner. Whe are seeing the coating creating thin halos around the poly dots as if the dots are "rejecting" the coating. T

silicone conformal coat and electrical contacts

Electronics Forum | Fri Feb 02 08:36:14 EST 2007 | CK Flip

Wow, I cut first cut my teeth in the Industrial motor control industry. My 1st company made motor control products like variable speed drives, solid state overload relays, soft starts, etc. and in our shop, we used nothing BUT Dow Corning silicone p

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