New SMT Equipment: qfn solder wetting issues (147)

Automatic solder paste printer GKg G9+

Automatic solder paste printer GKg G9+

New Equipment | Assembly Services

G9 + automatic vision printing machine is a new product for SMT high-end application field, which can perfectly meet the process requirements of 03015, 0.25pich and other fine spacing, high precision and high speed. Introduction to standard function

KingFei SMT Tech

Indium Solder Pastes

Indium Solder Pastes

New Equipment | Solder Materials

Indium Corporation manufactures high quality solder powders and pastes. Powders are available in hundreds of alloys and a full range of sizes. Solder pastes can be made from these powders using a wide variety of flux vehicles to get the best fit for

Indium Corporation

Electronics Forum: qfn solder wetting issues (446)

Solder wetting issues

Electronics Forum | Thu Dec 01 21:17:30 EST 2005 | davef

Does the solder melt when 'hit' with a soldering iron [and maybe a little flux]? If so, what is the appearance of the solder flow? What causes the green tint in the picture you provided?

Solder wetting issues

Electronics Forum | Fri Dec 02 08:52:05 EST 2005 | pavel_murtishev

Good evening, I�ve just solved very similar soldering issue. In my case the problem was with 0603 chips. Solder joint had same appearance. I suspected that solder do not melted and increased TAL and peak temperature. No result. Next thing I tried to

Industry News: qfn solder wetting issues (111)

MIRTEC TO EXHIBIT A NEW INSPECTION SYSTEM WITH THE PERFECT INSPECTION SOLUTION AT NEPCON CHINA 2017

Industry News | 2017-04-24 19:04:48.0

This year, MIRTEC will launch several new inspection machines equipped new cutting-edge technologies. MIRTEC is proud to be promoting these new machines in booth #1J10 at NEPCON China 2017, one of the biggest technical exhibitions of SMT and EMA, from April 25-27 at the Shanghai World EXPO Exhibition & Convention Center. MIRTEC’s new machines have been developed under a concept, ‘Perfect Inspection Solution’. This is an inspection concept involving the combination of 3D, 2D, and side-camera inspection.

MIRTEC Corp

Registration Open for IPC’s Conference on Solderability and Reliability for Electronics Assemblies in Budapest Industry experts to present on technical and business issues

Industry News | 2012-12-17 19:16:10.0

IPC — Association Connecting Electronics Industries® announces registration is now open for the IPC Conference on Solderability and Reliability for Electronics Assemblies.

Association Connecting Electronics Industries (IPC)

Technical Library: qfn solder wetting issues (10)

Lead-Free BGA Rework-Transition Issues

Technical Library | 2007-08-16 13:34:31.0

While experienced inspectors may be able to determine the aesthetic differences between a lead-free PCB assembly and a tin-lead version, one cannot rely on the "experienced eye". "Less wetting out to the pad edges" (Figure A) and "graininess and lack of shininess of the solder joint" (Figure B) are typical comments about some lead-free solder joints. However, in cases where a Nitrogen atmosphere was present during the reflow of the solder joint (Figure C), there will be little visual differences between the lead free alloys and their tin-lead counterparts.

BEST Inc.

An investigation into low temperature tin-bismuth and tin-bismuth-silver lead-free alloy solder pastes for electronics manufacturing applications

Technical Library | 2013-01-24 19:16:35.0

The electronics industry has mainly adopted the higher melting point Sn3Ag0.5Cu solder alloys for lead-free reflow soldering applications. For applications where temperature sensitive components and boards are used this has created a need to develop low melting point lead-free alloy solder pastes. Tin-bismuth and tin-bismuth-silver containing alloys were used to address the temperature issue with development done on Sn58Bi, Sn57.6Bi0.4Ag, Sn57Bi1Ag lead-free solder alloy pastes. Investigations included paste printing studies, reflow and wetting analysis on different substrates and board surface finishes and head-in-pillow paste performance in addition to paste-in-hole reflow tests. Voiding was also investigated on tin-bismuth and tin-bismuth-silver versus Sn3Ag0.5Cu soldered QFN/MLF/BTC components. Mechanical bond strength testing was also done comparing Sn58Bi, Sn37Pb and Sn3Ag0.5Cu soldered components. The results of the work are reported.

Christopher Associates Inc.

Videos: qfn solder wetting issues (7)

https://www.youtube.com/watch?v=D8MSO9qADvs

https://www.youtube.com/watch?v=D8MSO9qADvs

Videos

Welcome to this Bob Willis Defect of the Month video on BGA inspection, this series of videos were produced for and featured as part of the NPL/IPC video library and examples are taken from the NPL Defect Database. Over the last couple of years there

ASKbobwillis.com

NF120(200 nano resolution) X-ray Inspection System

NF120(200 nano resolution) X-ray Inspection System

Videos

#Xray#Inspection#SEC Nano-focus Tube of 200 nano resolution which is specialized for sub-micron defects of Semiconductor Packaging, Wafer Level Packaging(WLP). -Non-destructive Analysis System -High-Resolution Image with Dual Type CTs -Application

SEC

Training Courses: qfn solder wetting issues (1)

Void Formation in Solder Joints - Causes & Cures - Online Webinar

Training Courses | | | PCB Assembly Courses

The PCB assembly courses provide knowledge of different processes and equipment used in TH and SMT assembly of printed circuit boards.

ASKbobwillis.com

Events Calendar: qfn solder wetting issues (2)

Webinar: QFN/LGA Design, Assembly Process Issues & Reliability Failures

Events Calendar | Mon Dec 02 00:00:00 EST 2019 - Mon Dec 02 00:00:00 EST 2019 | ,

Webinar: QFN/LGA Design, Assembly Process Issues & Reliability Failures

Surface Mount Technology Association (SMTA)

Solder Paste Qualification Testing - SMTA Webinar

Events Calendar | Wed Mar 07 00:00:00 EST 2018 - Wed Mar 07 00:00:00 EST 2018 | ,

Solder Paste Qualification Testing - SMTA Webinar

Surface Mount Technology Association (SMTA)

Career Center - Jobs: qfn solder wetting issues (2)

Packaging Engineer

Career Center | Sherman, Texas USA | Engineering,Production,Research and Development,Technical Support

SMT Packaging Engineer: Location: Texas - Sherman , TX Group: HVAL Degree Requirements: BS ME/ChemE/Materials The person in this position will have the ability to make very significant financial contributions to TI because this is a very critic

Texas Instruments

Sr. Joining Engineer; Metal, Ceramic

Career Center | , Maryland USA | Engineering

Late stage start-up company, well into commercialization, that develops and manufactures products to precisely control the instantaneous release of heat energy for reaction initiation and joining applications. Building from its strengths in material

Empire International

Career Center - Resumes: qfn solder wetting issues (5)

Staff Process Engineer

Career Center | Wesley Chapel, Florida USA | Engineering,Management,Quality Control

15 years of experience on Electronic Manufacturing. Certified SMT Process Engineer TQM Knowledge Statistics DOE Screen Printer Thermal Process Knowledge JIT International Project Engineering Experience

SMT Process Engineer

Career Center | Fremont, California USA | Engineering,Production

4 years of PCB assembly process.

Express Newsletter: qfn solder wetting issues (1116)

Modern 2D / 3D X-Ray Inspection - Emphasis on BGA, QFN, 3D Packages, and Counterfeit Components

Modern 2D / 3D X-Ray Inspection - Emphasis on BGA, QFN, 3D Packages, and Counterfeit Components Modern 2D / 3D X-Ray Inspection - Emphasis on BGA, QFN, 3D Packages, and Counterfeit Components With PCB complexity and density increasing and also

Minimizing Voiding In QFN Packages Using Solder Preforms

Minimizing Voiding In QFN Packages Using Solder Preforms SMTnet Express July 27, 2012, Subscribers: 25333, Members: Companies: 8933, Users: 33366 Minimizing Voiding In QFN Packages Using Solder Preforms First published in the 2012 IPC APEX EXPO

Partner Websites: qfn solder wetting issues (88)

How to Prevent Non-Wetting Defect during the SMT Reflow Process-SMT Technical-Reflow oven,SMT Reflow

| http://etasmt.com/cc?ID=te_news_industry,24564&url=_print

>> SMT Technical How to Prevent Non-Wetting Defect during the SMT Reflow Process Wetting issues are classified by Non-wetting and Dewetting

FAQ Series: Top Five Manufacturing
 Issues For August 2009 - EPTAC - Train. Work Smarter. Succeed

| https://www.eptac.com/webinars/top-5-manufacturing-issues-for-august-2009/

FAQ Series: Top Five Manufacturing
 Issues For August 2009 - EPTAC - Train. Work Smarter. Succeed Looking for solder training standards, manuals, kits, and more


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