Electronics Forum | Fri May 28 17:30:35 EDT 1999 | Dave Clements
I discovered that we have some gold plated (30 mico in.) through hole connectors which were Paste In Hole soldered (60 sec at reflow) on a HASL PCB. Do we have an embrittlement reliability issue? The calculated volume % of gold in the joints is about
Electronics Forum | Fri May 28 17:44:51 EDT 1999 | Glenn Robertson
| I discovered that we have some gold plated (30 mico in.) through hole connectors which were Paste In Hole soldered (60 sec at reflow) on a HASL PCB. Do we have an embrittlement reliability issue? The calculated volume % of gold in the joints is abo
Electronics Forum | Wed Dec 17 09:53:26 EST 2003 | davef
IPC-2222 - Sectional Design Standard For Printed Board For Organic Printed Boards, Table 9-3 � Plated Through Hole Diameter To Lead Diameter Relationships will give you the standard information you require. If we can�t get proper hole fill after try
Electronics Forum | Sun Sep 13 19:56:21 EDT 2009 | 89jeong
Hi All I have a pig problem after reflow. It is a blister in hole.It happend after reflow(Lead free solder) I touched the blister with tweezer. The plating was lifted off easily How do i do? What is a root casue? Drilling or plating? Is it possible
Electronics Forum | Thu Sep 04 10:03:13 EDT 2003 | Rick B.
I'm attempting to develop paste in hole process so that I can reflow a few plated through hole components on a mixed tech board. Tried various pastes, profiles and stencil thicknesses. Would appreciate any insights and/or pointers anyone can share on
Electronics Forum | Wed Nov 23 08:43:48 EST 2022 | charles_nguyen
I am having problem with plated hole-copper spacing. I don't know if the gap between plated hole and copper can meet the capacity of PCB manufacturers. My board have 0.5oz copper weight on outer layer and distance of 0.177MM between plated hole and c
Electronics Forum | Fri Apr 21 12:43:51 EDT 2000 | David
We are going to hand place through hole connectors by screening them top side in a double sided reflow board. I saw this done before sucessfully on a daily basis but is there anyone with a paper or specs as to what aperture size, any special pad cons
Electronics Forum | Mon Apr 06 05:51:55 EDT 1998 | Yeo Sye Chai
You can do some reading-up from Circuit Assembly Sep 96 and Jun 97. The problem is that they tell you only the good things and seldom evaluate them critically. I will be interesting to see what you want to do with the metal fence! (I presume is it th
Electronics Forum | Tue Jan 30 01:32:24 EST 2001 | PeteC
Bill, We do solderpaste reflow on through-hole here every day on plated-thru-holes. We do it on connectors only. It is a reliable process. We use no special profile. The stencil apertures must be modified for this process. Check out the IPC-7525 "St
Electronics Forum | Tue Nov 03 18:35:28 EST 2009 | gregoryyork
was this hasl finish looks like it has been corroded from the inside of the hole wall looking at the shape of the break in plating
