Electronics Forum | Fri Jan 20 12:46:21 EST 2012 | deanm
If 3-5% of the attempted parts placed are dropped, you have a serious problem...that's 1 part dropped for every 20 or 30 placements. Does it mean that it drops the part in the scrap bin and then successfully places the same part or would the board co
Electronics Forum | Mon Jan 30 13:19:37 EST 2012 | deanm
Now knowing that its a Quad, I'm assuming it has QuadAlign which spins the part it just picked in a beam of light and a sensor measures the length, width and height of each part. If it falls outside of a defined range, it will throw it in the dump bi
Electronics Forum | Wed Feb 15 10:37:19 EST 2012 | caerleon
The only way you will be able to measure it is to count the reel before you put it on the machine, count them when they come off and deduct the amount expected to be placed. you will then have the result of attrition on the machine. or.. Pick the p
Electronics Forum | Fri Feb 03 17:25:47 EST 2012 | tombstonesmt
We've been having issues with our current process of oven profiles. We use a high temp adhesive to bond the thermal couples to the desired components. The issue of them letting go or releasing during reflow temps are hit or miss. Majority of our buis
Electronics Forum | Wed Feb 08 09:21:03 EST 2012 | ngineer
What Should I use to clean a sticking conveyor > belts in my pick an place machine (Quad IVc)? > The belts seem to have what I would guess to be > solder paste that is dried, but also they seem to > be a bit gunked up as if they had gotten some o
Electronics Forum | Sat Feb 11 09:58:20 EST 2012 | cbeneat
I have a question for any Panasonic CM 402/602 users. We run Cree XPE/XPG/XPC LED's on our machines, and have struggled for years with the lights sticking in our nozzles. We have two types, I believe both designed by Cree, one picks the light up by
Electronics Forum | Tue Feb 14 07:49:09 EST 2012 | davef
Sounds like a unique request. Have the resistors been heated or are they old? For information about metal film resistors, look here: * ecadigitallibrary.com/pdf/CARTSEUROPE05/ECARTS0533_mai.pdf * homepages.eee.strath.ac.uk/~bwwilliams/Book/Chapter%
Electronics Forum | Thu Feb 16 12:16:57 EST 2012 | swarnergictg
No-one should be accepting parts based solely on the presence of a C of C - from an independent or even an authorized distributor. You should have a QC plan in place that includes comprehensive visual inspection, microscope, x-ray, XRF, decapsulation
Electronics Forum | Thu Feb 16 12:16:36 EST 2012 | jax
I would assume every EMS company runs into this issue on a daily basis. Before we get to how a machine handles it, I would recomend setting up an acceptance criteria with your board supplier... if you plan on accepting them at all. (ex. No more than
Electronics Forum | Fri Feb 17 11:48:25 EST 2012 | davef
Here's a link to an earlier thread on SMTnet that may add something to the conversation http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=20871 Allowing fabricators to X-Out boards is a bad idea. * X-Outs are randomly placed * Machines can
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