Electronics Forum | Tue Jan 09 22:04:48 EST 2007 | Guest
Set Up Guy, I am not sure if the COB you are refering to means Circuit on Board . If yes, this process also include SMT . Package is a combination of some passive components and bare die. Passives are normally attached thru SMT using solder te
Electronics Forum | Fri Jul 17 07:45:28 EDT 2020 | spoiltforchoice
Electronic feeders are faster, more accurate & fully programmable. Potentially (although they don't always make it possible) they mean you don't need dedicated feeders for 2mm pitch or at the other end can do 4,8,12&16mm using the same unit. The feed
Electronics Forum | Mon Dec 11 19:28:51 EST 2017 | spoiltforchoice
That's not really the point of dual lane feeders. As a general rule having a dual lane 8mm feeder means the machines "slots" are actually 16mm, dual lanes on a 8mm feeder helps keep the overall lane density of a machine higher, its much easier to bui
Electronics Forum | Wed Mar 18 22:43:07 EST 1998 | Scott McKee
| | Is there anyone out there required by their customer to clean the finget tab contacts even after using noclean paste? We have been asked to clean even though we don't have any flux residue on the contacts. Any ideas? | | Mike | | Yes and often
Electronics Forum | Thu Mar 26 23:17:04 EST 1998 | Marty Fox
| | | Is there anyone out there required by their customer to clean the finget tab contacts even after using noclean paste? We have been asked to clean even though we don't have any flux residue on the contacts. Any ideas? | | | Mike | | | | Yes a
Electronics Forum | Thu Mar 19 11:48:56 EST 1998 | Earl Moon
| | | Is there anyone out there required by their customer to clean the finget tab contacts even after using noclean paste? We have been asked to clean even though we don't have any flux residue on the contacts. Any ideas? | | | Mike | | | | Yes a
Electronics Forum | Tue Nov 20 11:19:07 EST 2018 | spoiltforchoice
Ahh but you're missing the key points. The YSM40 is in no way ever intended to operate on its own, to keep those 4 heads busy they all need to be placing high volume parts, combined with a high throughput of PCB's probably in dual lane mode which in
Electronics Forum | Wed Apr 05 22:31:51 EDT 2000 | Dave F
Robert: Out of curiosity, by "BT" do you mean: � Bismaleimide triazine, the stuff used to increase the tg of resins used in some BGA interposers. � British Telecommunications plc, the guys with bad teeth. � BrookTree, the RAMDAC supplier, that�s par
Electronics Forum | Wed Sep 25 20:23:44 EDT 2002 | davef
Federal Specification GGG-P-463c "Granite Surface Plates" defines the three standard grades of tolerance for surface plates as follows: * AA - Laboratory Grade: For high precision operations in consistent temperature gauging rooms and metrology depa
Electronics Forum | Wed Jan 17 20:48:14 EST 2001 | davef
We find that the raw BGA's pad sheared surface has the SnPb solder at various Z heights whereas the assembled BGAs pad leave a smooth layer of SnPb along the pad. Like to understand the cause for the difference. Who could guess? Solder joint streng
