Electronics Forum: no wetting (3)

no clean flux + wave soldering issue

Electronics Forum | Thu Aug 28 11:31:17 EDT 2008 | patrickbruneel

Matt solder mask finishes gives the widest process window in view of potential amount of residues when using No-Clean. Shiny (glass like) finishes are more sensitive to residues due to lower surface area compared to matt finish. If the shiny finish i

QFN PCB Pad no Drain Hole

Electronics Forum | Fri May 31 18:00:55 EDT 2013 | hegemon

With regards to first picture.(Large themal vias) I would attempt to measure the area of the ground pad, less the area of the "drain" holes or Thermal Vias. From that result I would reduce the aperture to account for about 50% coverage of that remai

Express Newsletter: no wetting (71)

SMTnet Express - November 19, 2017

SMTnet Express, November 19, 2017, Subscribers: 30,938, Companies: 10,768, Users: 23,942 To Quantify a Wetting Balance Curve Frank Xu Ph.D., Robert Farrell, Rita Mohanty Ph.D.; Enthone Wetting balance testing has been an industry standard

Partner Websites: no wetting (1068)

No Clean - ITW EAE

| https://www.itweae.com/applications/electronic-assembly-materials/no-clean

No Clean ITW EAE Skip to main content Search form Search Support Center Contact Us Request Information Search Toggle navigation Home Company Overview History News and Events Locations ISO Certification Industry

Leadfree

Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2018/07/leadfree.pdf

°C N2 Good Wetting with Grainy Surface Finish PROPRIETARY AND CONFIDENTIAL INFORMATION Pages: 11 of 24 Rev Level: 1 Rev Date: 1/03/01 Test # 3 Thin Intermetallic Layer No Voids BGA Cross Section Material

Heller Industries Inc.


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