Electronics Forum | Thu Feb 05 05:27:55 EST 2004 | dszeto
We have recent customer asking for PCB's PTH hole size related to soldered wire AWG 18-26. Please kindly advise any international standard for captioned issue. Thanks!
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.
Electronics Forum | Wed Jun 01 00:25:28 EDT 2011 | alcatel
I have one pcb which has via holes on both solder pads of 0402 chips. Right now im using type 3 solder paste with 45 degree squeegee. and a lot of these chips are tombstoning. Im guessing with larger particle size of solder paste, the solder will
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
Electronics Forum | Wed Jun 01 15:50:59 EDT 2011 | markhoch
I don't believe that particle size of the solderpaste will offer you any relief from this issue. The solder flows into the via, leeching away from the desired solderpoint, after the solder has become liquious. The chemical make-up of the solder contr
Electronics Forum | Tue Apr 16 05:05:32 EDT 2013 | stivais
We recently had a discussion with customer's QM - he claims that calculations for a proper solder wire diameter and soldering iron tip size (and temperature) have to be performed and documented for all manual (T/H) solderings (based on component size
Electronics Forum | Tue Apr 09 18:29:34 EDT 2002 | davef
Any-Layer Interstitial Via Hole (ALIVH). In printed circuit board fabrication, a registered mark of Matsushita Electric for a filled microvia structure in all layers for applications requiring small-size, lightweight build-up PWB to achieve high-den
Electronics Forum | Wed Jan 13 04:27:00 EST 2016 | crystalpcb
Hi Here is our factory production capability: Shenze Electronic PCB Specification Layer Count 1 to 35 Layers Material Brand Shengyi,KB,GRACE,ISOLA,Rogers,Taconic,ARLLON,Bergquist Base Material FR-4（TG135,TG150,TG170,TG180），Halogen Free FR-4，Ceramic
Electronics Forum | Wed Sep 11 15:12:02 EDT 2013 | rway
"Do you think these machines are less appropriate for smaller lot sizes and PCB's with just a few through hole parts?" That depends. It will still save time if your lot sizes are small, as opposed to hand placement. I would not recommend buying an
Electronics Forum | Wed Sep 11 10:48:02 EDT 2013 | gregp
Hi Reese, The UIC machine is (was) good for higher volumes. Do you think these machines are less appropriate for smaller lot sizes and PCB's with just a few through hole parts? Also, are the UIC through hole machines still fully supported with ampl
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