Electronics Forum | Tue Mar 19 07:04:21 EDT 2013 | Flux Capacitor
When I enter in the program data for a particular PCB on our Juki, I choose a board fiducial and enter its X Y location as the "bad mark position". (Although I'm not sure if your model refers to this as a "bad mark" as well.) Place a sticker over tha
Electronics Forum | Fri Jul 26 12:18:43 EDT 2002 | dougt
I'm told that the Contact Systems machines we have will are set up so that if you put a sticker over the fiducial it will skip that board on the panel. I think the machine might prompt the operator that it can't find the fiducial and the operator te
Electronics Forum | Wed Mar 15 22:08:20 EST 2006 | davef
Brad We agree with Rob. Even if the fab marks the fids [on both sides] to reduce component attrition, you'd be surprised in the amount of paste that 'disappears' on x-out boards. Do the numbers [follow the money].
Electronics Forum | Wed May 14 11:35:04 EDT 2008 | scottefiske
We produce High mix very low volume Military assemblies. So a typical order mya be for 50 pcb's, at a 5 up array. Do you work in the fab shop? Scott
Electronics Forum | Tue Aug 18 15:36:40 EDT 2009 | davef
There is no standard. You need to decide when you want the cost of bad boards applied to your product cost. Search the fine SMTnet Archives for previous discussions, like: http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=20871
Electronics Forum | Mon Dec 21 14:38:11 EST 2009 | bandjwet
Does anyone know of a vendor of "black top" to fill in voids left by laser "X-out" patterns in the top of an epoxy (plastic) package ? We are demarking an area of a device and would like to fill it in with something other than a colored epoxy. Reg
Electronics Forum | Sat May 08 11:53:52 EDT 1999 | Scott Cook
| My company has a product line that utilizes multi-up PCB's. In order to cut costs for this product line, I have been asked to look into ways of running panels that contain bad blocks. Our SMT equipment is quite capable of doing this, but I need to
Electronics Forum | Wed May 14 15:15:03 EDT 2008 | boardhouse
Hi Scott, I have worked for a State side PCB Manufacture and now a Taiwan Manufacture. At both shops the up charge was based on how many up the pallet array was plus layer count and complexity of product, charges ranged from free to 15%. Standa
Electronics Forum | Tue Mar 14 14:56:50 EST 2006 | Brad Courtemanche
Does anyone know if there is any kind of industry standard for x-out pcb's coming from board houses. I have been seeing more and more pallets/panels coming from various board houses with alot of bad pcbs. I have been in the industry for a little over
Electronics Forum | Fri Mar 17 08:58:20 EST 2006 | russ
Not aware of any published standard for this. Usually we take care of this upfront with the supplier. No more than X amount of panels with one or more Xouts in any lot, No more than X number of Xouts per panel, so on and so on. Not defending boa
