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 (77)

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 (119)

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.

Soldering Aluminum Wire - EPTAC - Train. Work Smarter. Succeed

| https://www.eptac.com/ask/soldering-aluminum-wire/

. No wetting, whatsoever, even after cleaning and fluxing. Are there any special techniques for soldering aluminum wire? More Questions Component Rework Clarification Soldering Minimum Space Requirements Gum and Hard Candy at a Workstation Soldering onto Platinum Pins Inspection Criteria for Unique Lead Geometry Question


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