Electronics Forum: plated through hole is (Page 1 of 27)

What is the smallest hole size available through PCB123?

Electronics Forum | Thu Oct 31 02:43:55 EDT 2013 | hqew2013

The smallest finished hole available for 2 layer board is .020”. The smallest finished hole available for 4+ layer board is .014”. All holes are round and drilled through from top to bottom layer of board. No blind or buried vias. For holes = .15

Pasting through hole connectors

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

Reflow soldering through hole parts

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

thru hole

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

gold embrittlement on paste in hole 30 micro in. gold plated lead

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

Re: gold embrittlement on paste in hole 30 micro in. gold plated lead

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

drill hole overlapped? is it acceptable ?

Electronics Forum | Fri Apr 19 13:47:00 EDT 2019 | davef

It's a terrible idea. Through holes should be drilled in the exact center of a pad +/-. Have the two holes go out back and settle this. Whichever hole returns, that hole get to keep the pad. The other hole needs to get its own pad. End of story. Th

Paste in hole

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

Plated through via's in pads.

Electronics Forum | Wed Feb 05 19:43:34 EST 2003 | iman

If by the Powers Ta Be (customer/designer), you can't change the PCB design, negotiate for the PCB fab house, to block the via holes with their (green?) solder mask some customers/designers want to have via holes to be present in the PCB pad, due to

PTH hole size for soldering wires

Electronics Forum | Thu Feb 05 08:39:16 EST 2004 | 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.

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