Electronics Forum | Sat Oct 09 04:17:21 EDT 1999 | Brian
| Can anyone tell me the formula/method to determine | the amount of weight that solder's surface tension can support. | (ie: Maximum weight of components soldered onto a bottom side | of a board during a top side reflow on a Paste/Paste process). |
Electronics Forum | Sat Oct 09 07:33:23 EDT 1999 | Dave F
| | Can anyone tell me the formula/method to determine | | the amount of weight that solder's surface tension can support. | | (ie: Maximum weight of components soldered onto a bottom side | | of a board during a top side reflow on a Paste/Paste proc
Electronics Forum | Tue Oct 12 05:09:13 EDT 1999 | Brian
| | | | | | | Can anyone tell me the formula/method to determine | | | | | | | the amount of weight that solder's surface tension can support. | | | | | | | (ie: Maximum weight of components soldered onto a bottom side | | | | | | | of a board during
Electronics Forum | Sat Oct 09 09:07:48 EDT 1999 | Brian
| | | Can anyone tell me the formula/method to determine | | | the amount of weight that solder's surface tension can support. | | | (ie: Maximum weight of components soldered onto a bottom side | | | of a board during a top side reflow on a Paste/Pa
Electronics Forum | Sat Oct 09 09:18:21 EDT 1999 | Dave F
| | | | Can anyone tell me the formula/method to determine | | | | the amount of weight that solder's surface tension can support. | | | | (ie: Maximum weight of components soldered onto a bottom side | | | | of a board during a top side reflow on a
Electronics Forum | Sat Oct 09 10:30:24 EDT 1999 | bix
| | | | | Can anyone tell me the formula/method to determine | | | | | the amount of weight that solder's surface tension can support. | | | | | (ie: Maximum weight of components soldered onto a bottom side | | | | | of a board during a top side refl
Electronics Forum | Mon Oct 11 12:49:11 EDT 1999 | John Thorup
| | | | | | Can anyone tell me the formula/method to determine | | | | | | the amount of weight that solder's surface tension can support. | | | | | | (ie: Maximum weight of components soldered onto a bottom side | | | | | | of a board during a top s
Electronics Forum | Fri Feb 17 11:01:47 EST 2006 | amol_kane
with lead-free solders, one would expect to find less instances of tombstoning. this is because SAC alloys are not eutectic and melt over a range of temp (usually 217-220 deg C) instead of at a single temperature. therefore the forces due to solder s
Electronics Forum | Wed Nov 28 22:33:24 EST 2007 | davef
There is no specification for lead-free HASL. You can use any lead-free solderability protection that meets your customer requirements. Use IPC-9701 �Performance Test Methods and Qualification Requirements for Surface Mount Solder Attachments� to ass
Electronics Forum | Wed Nov 28 02:43:00 EST 2007 | philip_yam
Hi all, For leadfree HASL finish, is there any specification or guidelines for contamination level, esp Cu% to refer? How can we ensure the HASL finish composition is reliable for assembly? Thanks..
The SMTA membership is a network of professionals who build skills, share practical experience and develop solutions in electronic assembly technologies and related business operations.
Training Provider / Events Organizer / Association / Non-Profit
6600 City W Pkwy
Eden Prairie, MN USA
Phone: 952-920-7682
