Electronics Forum: annular ring covered with solder mask (Page 1 of 3)

Re: 2 questions: via tenting and annular ring terminology.

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

2 questions: via tenting and annular ring terminology.

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

Re: 2 questions: via tenting and annular ring terminology.

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

Re: 2 questions: via tenting and annular ring terminology.

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

Accidental solder mask

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.

kapton dots and liquid solder mask

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

Accidental solder mask

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

Accidental solder mask

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

THT connector solder thieves

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

Connector solder thieves - through hole

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

  1 2 3 Next

annular ring covered with solder mask searches for Companies, Equipment, Machines, Suppliers & Information

Benchtop Fluid Dispenser

PCB Assembly Supplies - ONLINE STORE
Reflow Ovens

MSD Dry Cabinets
MSD Dry Cabinets

Best Reflow Oven


무플럭스 리플로우 솔더링을 위한 포름산 리플로우 오븐