I'll buy your electronics to feed our robot
dayworkx.com
dayworkx.com
Examples:
* servers, networking gear, routers, switches * laptops / workstations * telecom / industrial / embedded boards * lab equipment electronics * obsolete or end-of-life hardware with populated PCBs
We’re especially interested in hardware that *is no longer useful as a system but still has valuable chips or components on the boards*.
Typical pricing depends on the hardware, but we often pay *$20–$200+ per unit* for things like servers, networking gear, or laptops depending on what’s inside. Happy to buy bulk lots.
Based in the Bay Area; we can arrange pickup locally or pallet shipping within the US.
If you run ITAD, recycling, refurbishment, repair, or have retired hardware sitting around, email:
sava@dayworkx.com
Even rough descriptions like “a pallet of old switches” are helpful.
And is _way_ better than when I'm forced to do this by hand, I'll say that much haha
The chips simply drop off into a bin, and no ethical company will sell customers used silicon. There were a few folks that ended up getting a few years in prison for that con (small China groups would sand and laser mark old chips with modern lot codes), and hence why many US recycling plants shred the chips for recovery of precious metals.
It is a serious safety problem, and having personally been stung by locally sold counterfeit/used stuff with BS compliance documentation... it sometimes means months of lost project time figuring out what happened. Always direct sample from the manufacturers whenever possible. =3
As an engineer, I wouldn't use second hand components for prototyping. When prototyping you need to eliminate as much uncertainty as possible. I'd consider using second hand components in production, provided there is a cost advantage, supply is reliable and my production line includes a test that would pick up faulty components. Even then, I'd be monitoring failure rates and reverting to new components if elevated failure rates caused costs. There's an argument that (well handled) second hand components might even have a lower failure rate than new as they have been burned in.
I'm guessing this company is targeting specialsied repair rather than production. Sometimes complex parts are no longer manufactured and the only option is second hand (often at a premium price).
In general, most components are only rated for 2 to 4 re-flow heating cycles before internal damage occurs. On some components the initial re-flow cycle brings the component into the rated tolerance, and for others the PCB forms a bimorph cantilever that physically fatigues the chip contacts/leads.
Production yields are only part of the Infant Mortality Phase of the bathtub curve.
Some components do get more stable with age if and only if left alone, but you can count those on one hand if you still have all your fingers. That is also a 3 hour pedantic conversation no one wants to have.
I am secretly a sentient turnip... =3
Be kind to yourself first, and maybe get outside for a walk. Best regards =3
Apart from the absolute temperature, chips have a recommended heating/cooling cycle, including heating/cooling rates. That suggests that differential expansion is a factor, which would likely be cumulative (more cycles = more likelihood of fatigue and damage).
The above is intuition, not the hard data you want.
I think what you are doing is a great idea (effectively demanufacturing). I'm hoping you can solve the practicalities, which as far as I can see are quality assurance and being able to guarantee a steady supply of components and a price point below new.
Any plans to retape the components so they can be put though a pick-and-place machine, or are you looking more towards manual rework? I can see that there is room for innovation in efficient ways to get components off boards at volume, as most component removal is in the form of manual rework.
curious—what specific failure modes or uncertainties would you want eliminated before you'd consider using recovered parts, even just in production?
Since when? My first EE job was in 1988 and back then "pulls" -- components pulled from circuit boards were an easy way to get cheap parts. We'd get mailers every week from various companies listing what they had available. The electronics recycling industry was/is huge.
The moment people switched from socket based chips, and BGA over 1 square inch in size.
Let me fix that for you: "The electronics [3rd world counterfeiting] industry was/is huge."
You should already know the unmentioned reasons by now.
I am a sentient turnip... thus, my obligation to respond ends with the safety warning. =3
While we only used DIPs at that time, most of the pulls that I remember weren't removed from sockets: they had clearly been desoldered.
There are also valid reasons aerospace companies often change chip pin plating.
https://nepp.nasa.gov/WHISKER/background/index.htm
Workmanship is important to some folks... =3
In one particular case where we had a BOM mixup on a batch of 500 boards @5 chips per board this would have saved me a ton of time. I did 2500 chip swaps by hand...
If you need any help with the project let me know. This is something I would love to help develop hardware for.
Its not a scrapping system.