Electronics Forum | Fri Dec 09 06:25:53 EST 2005 | ajay
thanks for info Most of the defect soldering joint do not take place. Observe that PCB not cleaned properly & also component wetting not good. testing staff expect that all card what ever they receiev shuld be 100% ok. they straight forward complain
Electronics Forum | Thu Dec 08 16:02:35 EST 2005 | PWH
Not sure how Juki centernests operate but baybe the board thickness is prgrammed wrong and the top board surface is too low or too high (bowed upward). This will cause bad placements. This is an easy mistake to make on HSP.
Electronics Forum | Fri Dec 16 10:25:37 EST 2005 | solderiron
Rather than cleaning a water soluble flux residue off the board, by encapsulating the product. covering the board or the component with lets say a Hysol encasulant. Would this prevent the active flux residue from migrating and deteriorating the elect
Electronics Forum | Thu Dec 22 06:54:46 EST 2005 | pjc
Try your component distributor. Many of them can take your BoM with existing mfr. nrs. and give you new list of Pb Free mfr. p/ns.
Electronics Forum | Sat Dec 24 07:48:52 EST 2005 | ams_gen
Hello, I need to rework a thru hole DIP mounted on a metal backed FR4. It is difficult to remove the FR4 board from the metal back since it is riveted. Is there a simpler way to takle this? Thnx
Electronics Forum | Thu Dec 29 04:19:52 EST 2005 | lvqp72
We've run into a persistent QA error 99 on one of our Quad IVC's. Have checked upon all the obvious and found no bad components. Do appreciate any advice on this problem. Thanks.
Electronics Forum | Wed Jan 11 10:38:30 EST 2006 | Rob
We've got a Must II, and it works fine. The service in the UK is good too, but the upgrades (i.e. to lead free) are expensive, and last time we checked the new software wasn't 100% ready.
Electronics Forum | Mon Jan 09 11:15:10 EST 2006 | bill
I'm new on this, what's the standard rate for each placement on passive and active components and how to rate labor cost per hour. thanks in advance
Electronics Forum | Tue Jan 17 17:29:42 EST 2006 | pjc
Here's a page on tombstoning: http://www.tkb-4u.com/defects/reflow/tombstoning/tombstoning.php Be sure to see this on the bottom of the page: For more info about this item look at the Articles / Newsletter: (Causes and Cures of Tombstoning Chip C
Electronics Forum | Wed Jan 18 02:00:36 EST 2006 | pavel_murtishev
Good morning, This isn�t very strange. Bottom side components are prone to tombstoning more than topside ones. Try to reduce oven�s bottom heaters temperature slightly to prevent solder paste melting on bottom side. This can help. BR, Pavel
