Electronics Forum | Wed Jul 07 09:47:41 EDT 1999 | Peter Brant
| | Q #1) Is it more reliable to have the mask tent over the vias or risk getting vias half filled with solder? These are vias with an .020" hole and .040" or .050" pad. WIth regards to this question, and scott's follow up, I have used the "epoxy me
Electronics Forum | Tue Jul 06 19:38:01 EDT 1999 | John
Q #1) Is it more reliable to have the mask tent over the vias or risk getting vias half filled with solder? These are vias with an .020" hole and .040" or .050" pad. Q #2) When speaking of annular rings, I have always thought of them as minimums. Su
Electronics Forum | Wed Jul 07 10:25:13 EDT 1999 | John Thorup
| | Q #1) Is it more reliable to have the mask tent over the vias or risk getting vias half filled with solder? These are vias with an .020" hole and .040" or .050" pad. | | John, | It depends......mainly on the via size. Tenting works on smaller vi
Electronics Forum | Wed Jul 07 00:28:59 EDT 1999 | Scott Cook
| Q #1) Is it more reliable to have the mask tent over the vias or risk getting vias half filled with solder? These are vias with an .020" hole and .040" or .050" pad. John, It depends......mainly on the via size. Tenting works on smaller vias. Tent
Electronics Forum | Tue Dec 17 17:22:45 EST 2002 | Tim Marc
Thanks Russ. You were right I looked one page too far. We can meet (A,B,C,D). To meet the 75% of (E) the annular ring will have to be scraped. Your help was much appreciated.
Electronics Forum | Tue Aug 09 13:25:24 EDT 2005 | pr
From what I can gather, the annular rings are used for grounding when these boards are put in housings. A screw goes through the hole and is torqued down. If there is excess solder on the annular ring, the screw doesn't seat properly. The pallets cov
Electronics Forum | Tue Dec 17 17:47:49 EST 2002 | Tim Marc
Dave, I�m talking about the 75% vertical fill of solder IPC 6.3 criteria (B), and 6.3.1 Fig 6-5. I also referred to the annular ring of the Plated-Through-Hole, being coated with solder mask. Semantics, yes I did refer to the Plated-Through-Hole (Sup
Electronics Forum | Tue Dec 17 12:53:28 EST 2002 | russ
You looked one page to far in the IPC book! Fillet height of 75% is acceptable for all 3 classes. Per IPC 610 rev. C Section 6 table 6.2. A. Circumferential wetting on Primary side (top)between lead and barrel (not anualar ring) Class 1 Not spe
Electronics Forum | Wed Feb 12 13:37:22 EST 2003 | dwanzek
I need some input on what good solder thieves dimensions should be. I am limited to solving my bridging problem with solder thieves; all process/wave variables have been adjusted to try to solve this problem. There are several of these connectors on
Electronics Forum | Wed Feb 12 12:06:58 EST 2003 | dwanzek
I need some input on what good solder thieves dimensions should be. I am limited to solving my bridging problem with solder thieves; all process/wave variables have been adjusted to try to solve this problem. There are several of these connectors on
