Raw materials
Since Kingston Taiwan is a memory assembly plant, materials are made at other Kingston facilities, or purchased from outside manufacturers, and shipped to the Hsin-Chu plant for assembly.
Incoming raw materials - PCB's and memory chips - are received, segregated and tested for compliance with quality specifications prior to release to manufacturing.
When released by Quality Assurance, raw components are assembled on carts by job and moved to the manufacturing floor for assembly and testing.
This part of the Kingston design allows tremendous flexibility and quick turnaround of custom memory orders.
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Backslider - Thursday, June 16, 2005 - link
@15I'm sure the author just used the wrong term. for the process. There is no way they could use wave soldering on SMT parts, it has to be reflow.
Son of a N00b - Thursday, June 16, 2005 - link
great article...thanks!Brazos - Thursday, June 16, 2005 - link
I can't believe they don't use a automated test machine. Load a stack of dimms in and the machine loads them, tests them, records results, kicks out bad ones. Loading by hand into a pc is so 70's :)Houdani - Thursday, June 16, 2005 - link
I would be surprised if they actually use wave solder to "glue" the parts down. It is more likely they use some form of reflow technique such as infrared, convection, or vapor phase.Wave solder is used for leaded parts, but reflow makes more sense for SMT parts -- and as far as I can tell, Kingston doesn't have any leaded parts (parts with legs which poke through the circuit board) on their DIMMs or flash products (SD, CF, et al).
Regs - Thursday, June 16, 2005 - link
How exactly do all those one's and zero's copy themselves into the ram? That's what I want to know.yacoub - Thursday, June 16, 2005 - link
awesome article!Anyone else want to grab a case of completed DIMMs and turn it into a giant RAM disk? :D
xsilver - Thursday, June 16, 2005 - link
#11they said they test them -- not run memtest for 24 hours -- they also said that now their competition is also doing the same thing....
its feasable but kingston is not much of a player in the enthusiast market theses days
gibhunter - Thursday, June 16, 2005 - link
I smell BS. There is no way they test millions of manufactured memory sticks by hand in a computer. Yeah, they may do some testing of random sticks but there is just no way that they do this to all of them. Maybe they just test the ones that are suspect after the machine test, but to test them all would require more man power than it takes to make them. Their prices then would be much higher than their competition and that's not true either.semo - Thursday, June 16, 2005 - link
yeah i guess you're right Wesley, we all need a break from theinquirer and such sometimes...i still think that they can let you in some stats like how much do the machines cost, how often they’re replaced, mtbf, throughput ...
maybe a video of how the machines do their job next time and why not tweak them (while the daemon guards with the lightning whips are not looking) to make them dance?
Brian23 - Thursday, June 16, 2005 - link
I got excited seeing the QA Engineer in action.