Electronics Forum: lifespan (Page 2 of 3)

PCB Design Question - Hard gold or ENIG for keypad button contacts

Electronics Forum | Fri Feb 17 07:23:29 EST 2017 | sevenfortyone

I'm a PCB designer working on a board that has a rubber keypad with control buttons mounted to it. The PCB contains the corresponding contact patterns for the buttons - a typical interlocking finger pattern. In the past when I've encountered this

Wave Pallet Lifespan

Electronics Forum | Mon Jul 15 18:29:55 EDT 2002 | russ

Are you talking about selective wave pallets? Most of it depends on the minimum thickness of masking walls (design). I have had some that have lasted until the product went EOL (5000 passes or so. and some have made it about 50 passes. How's that

Solder Paste for Thermal Cycling application (-40 to 150 Degree Celcius)

Electronics Forum | Sun Dec 10 20:17:51 EST 2017 | myke03o

Hi Dave, thanks for the response. * Improve your products that are used for thermal cycling testing of products of other companies? Yes we want to improve our products to pass thermal cycling and prolong the lifespan of the baord. * Change your pr

Electrovert OmniFlo Ovens

Electronics Forum | Fri Jan 21 15:33:43 EST 2005 | Mark

>Hours mean nothing on these machines. Correct me if I am wrong but isn't it true that heaters and blowers (maybe valves) have a specific lifespan? I would think that parts in an oven with many hours on it are due to fail sooner than those in one wit

Thermal cycling

Electronics Forum | Fri Nov 04 08:10:04 EST 2005 | Amol

Hi all, If i know my field conditions and the required lifespan of the final product, how can i decide what thermal cycle to use for ATC to qualify the product?? I have the JEDEC standards for min-max temps and dwells, but how do i translate them int

Wave Pallet Lifespan

Electronics Forum | Wed Jul 17 11:43:31 EDT 2002 | johnw

It depend's as Russ say's on your pallets, things like : material type wall thickness floor thickness selective or open app. but also on the process, the volumes, the number of carriers you have vs the build numbers & cycle time and the machine your

Contract manufactuer in China

Electronics Forum | Tue Apr 29 12:35:03 EDT 2003 | stepheno

Different viruses have different lifespans outside the host. HIV is something like a few seconds. The flu is something like 12 hours. Sars is something like 24 hrs. There are a lot more deadlier deseases. I think you would have a much greater chance

Stencil foil life span

Electronics Forum | Thu Jan 09 11:15:12 EST 2020 | cyber_wolf

Stencil lifespan depends on several factors such as squeegee type, squeegee pressure, handling,and foil thickness to name a few. There is no magic number. The best judge is your SPI machine if you have one. We typically start thinking about replacem

Self Tensioning Frames

Electronics Forum | Wed Jan 29 18:31:06 EST 2020 | slthomas

The 4 places I've worked in SMT all had their own solutions for their own reason. I quit worrying about what worked best if what I had worked OK. I've only seen (or recognized, at least) tension issues on foils that had been saved well beyond a rea

Gold finger Protectors

Electronics Forum | Sat May 13 07:03:16 EDT 2000 | Sal

guys, Currently running a very high volume product, with the gold fingers at the edge of the board masked off using Kapton tape to avoid any form of contamination during reflow and wavesoldering. I've heard alot of about the gold finger gloves, my q


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