Electronics Forum | Thu Feb 24 10:34:02 EST 2005 | Rob
Thanks Dave, From what I remember a lot of components went away from Silver Palladium to "base metal" terminations because of the difficulties in continuation of supply & stability of price. (Something about being mined in Chechnia or the Congo?) W
Electronics Forum | Mon Feb 28 04:10:07 EST 2005 | Rob
Hi Dave, Was planning on skipping the paste step & screen printing the adhesive straight onto the pad, then placing the component into the glue & curing. (Board has LEDs only) Regarding the lead-free HASL issue - not entirely sure on the board man
Electronics Forum | Sat Mar 05 22:44:44 EST 2005 | gpaelmo
You can also try the Florida Circtech website or call them direct. There is a min. thickness requirement and if the board house does not follow it you will end up with scrap boards after the second pass (from experience). I even sent blank boards to
Electronics Forum | Sun Apr 10 06:27:50 EDT 2005 | WarpSpeed
1.) First of all: What is Your customers requirements??? 2.) If the customer or You don't have a specification; I will strongly recommend that you follow the "IPC-IPC-TM-650 Method 2.4.22 Bow & Twist" that [DaveF] suggested. 3.) If You have "critic
Electronics Forum | Tue Apr 12 12:08:06 EDT 2005 | Dave G
I use the solder sample pcb that comes w/ each batch of boards. We ask our pcb vendor to send 1 pcb for solder testing w/ each batch. This is usually a pcb that is completely done it just didn't pass electrical test @ the final stage. I kill two bird
Electronics Forum | Fri Apr 29 13:29:41 EDT 2005 | russ
I have always been nervous with this process. I fear that the "good joints" may become fractured without coming loose. I am a proponent of this to verify a profile or something to see the strength but then we always reflow the affected joint afterw
Electronics Forum | Mon May 09 18:43:58 EDT 2005 | keegomaster
Hi everyone! Me and my R&D team are working on the design of a highly flexible AOI. I'd like to know your "wishlist" on what you'd like a brand-new AOI to have. I gotta figure out the competitive advantage; what a better place than this "Agora". I'd
Electronics Forum | Sat Oct 29 09:10:17 EDT 2005 | davef
You're correct that Room Temperature Vulcanizing (RTV) adhesive is pretty much a cosmetic when it comes to securing components. Beyond that it contains silicone, which produces unsolderable connections in electronics. Further, many RTV seep acidic
Electronics Forum | Mon Nov 14 12:22:35 EST 2005 | Dave Prosser
I just sold my 2 GSMs and purchase 2 new Advantis. The AC-30L is with the lightening head and a AX-72 which has a flex head and a flexjet. So I know the feeder situation very well and some of the advice you have received is not valid. Feel free to
Electronics Forum | Mon Oct 31 13:04:15 EST 2005 | bobpan
Dave, The quad 1000 was a samsung machine with quads name on it......the software sucks and it is totally different from central controller. If you go for a machine....go for a 2c r 4c if you still want to use the same feeders. Chip shooter means 080