Re: Would you read my reviews in english?
Lead from solder has absolutely no impact on lead leackage from landfills into drinking water. Even a cursory exploration of this myth would have straightened you up in regard to this in no time.
He offered a free service to the public in the form of a review, and in that review, he made the apt observation that the solder reflow job was poor. He's not obligated to spend thousands of dollars and travel to those factories to verify his obviously true speculation.
...or they could have just used leaded solder, which doesn't require any tinkering, and which has been in use for the past century...
Flux cleanup is also important because of its conductivity at higher temperatures.
And you're right, the synthetic fluxes sometimes specified for lead-free solder don't need to be cleaned, but you don't know for a fact that the Chinese manufacturers didn't use rosin-based flux, and for that matter, synthetic flux isn't as biodegradable as rosin-based flux. So what have you accomplished by forcing lead-free on the masses? More pollution, more e-waste in order of magnitude, and enormously higher cost for everyone. And your complaint is that Behemot is affecting sales of German distributors by not sugar-coating his reviews.
Good for you. The post-RoHS Xenon-based XBox 360 consoles had a 100% failure rate thanks to RoHS. That's a 100% RMA rate. As in, it's almost entirely unlikely that a Xenon Xbox 360 that has seen continuous use doesn't have BGA solder failure.
You asked for an RMA failure rate? There it is. Now go bug some other people. We don't want this thread to be locked, and it's now entirely clear that that's what you're trying to do.
Originally posted by Pavel?
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It is very likely that Pavel has never been to one single factory to see a wave solder in action first hand so he is only stabbing in the dark.
If the solder cooled too quickly, it is most likely because the wave solder temperature was not set properly or the length of track inside the wave solder was too short to let it properly cool because of the higher temp needed for silver.
Pavel gives no explanation on why and you fall for it. He has no clue. Flux to be cleaned? Really? You don't clean flux anymore on production line, the flux used are all non-corrosive type. You think just because Pavel is highly opinionated that he knows what he is talking about? If he did then you would have power supply companies banging at his door for his valued advise but guess what, not one because if they did, Pavel would be bragging his ass off on jonnyguru.com forum, but not a peep.
And you're right, the synthetic fluxes sometimes specified for lead-free solder don't need to be cleaned, but you don't know for a fact that the Chinese manufacturers didn't use rosin-based flux, and for that matter, synthetic flux isn't as biodegradable as rosin-based flux. So what have you accomplished by forcing lead-free on the masses? More pollution, more e-waste in order of magnitude, and enormously higher cost for everyone. And your complaint is that Behemot is affecting sales of German distributors by not sugar-coating his reviews.
You wrote: "Post-RoHS videocards always fail...." My dual SLi has been working pretty nicely since um.... 5 years? But I do recall the video card in my Acer notebook from 2001 died so I had only half a screen, oh, but that was pre-RoHS. You have RMA numbers from the big brands comparing RMA rates pre and post RoHS? Really? Seriously? Show us so we can all learn from it.
You asked for an RMA failure rate? There it is. Now go bug some other people. We don't want this thread to be locked, and it's now entirely clear that that's what you're trying to do.
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