New SMT Equipment: qfn wet (129)

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

SEC 6300AXI(3D CT) - In-Line 3D CT AXI

SEC 6300AXI(3D CT) - In-Line 3D CT AXI

New Equipment | Inspection

In-Line X-ray Inspection System Automatically in-line inspect Solder joint defects of PCBA and other defects on Hidden Components. Able to judge Good/NG fast with inspection speed of 1sec/FOV and the program can set ROIs conveniently. Performing X-r

SEC

Electronics Forum: qfn wet (25)

NXP QFN Solderability Wetting Problems, Kester

Electronics Forum | Mon Aug 14 14:53:51 EDT 2017 | emeto

AIM, Indium , Alpha will be your top 3 choices. I did paste evaluation before with 4 paste manufacturers and Kester was my choice number 4. Profile according to the paste specs and observe results.

NXP QFN Solderability Wetting Problems, Kester

Electronics Forum | Thu Aug 10 07:29:43 EDT 2017 | stivais

How do you evaluate the soldering quality for those QFNs? X-Ray or AOI? For some QFNs (and other bottom termination components) it's not supposed to have solder fillets on toes. It's also noted in IPC-A-610 (Rev.F 8.3.13). Take a look at your QFN ch

Industry News: qfn wet (9)

SMTA Intermountain Chapter to Hold Annual Technical Symposium

Industry News | 2013-09-10 12:18:26.0

The Surface Mount Technology Association (SMTA)'s Intermountain Chapter will hold its annual technical symposium on September 19 at the University of Utah in the Warnock Engineering Building, Salt Lake City, Utah.

Surface Mount Technology Association (SMTA)

AMTECH Introduces a New Solder Paste, VS-213, Also Known as the Voidstopper

Industry News | 2014-06-17 21:50:29.0

SMT International has just introduced AMTECH VS-213 (a.k.a. the VOIDSTOPPER), a no-clean, lead-free solder paste formula that is 100% halogen-free based on all testing methods, including Oxygen Bomb Combustion and Ion Chromatography.

AMTECH

Technical Library: qfn wet (3)

The Risk And Solution For No-Clean Flux Not Fully Dried Under Component Terminations the Risk And Solution For No-Clean Flux Not Fully Dried Under Component Terminations

Technical Library | 2020-11-24 23:01:04.0

The miniaturization trend is driving industry to adopting low standoff components or components in cavity. The cost reduction pressure is pushing telecommunication industry to combine assembly of components and electromagnetic shield in one single reflow process. As a result, the flux outgassing/drying is getting very difficult for devices due to poor venting channel. This resulted in insufficiently dried/burnt-off flux residue. For a properly formulated flux, the remaining flux activity posed no issue in a dried flux residue for no-clean process. However, when venting channel is blocked, not only solvents remain, but also activators could not be burnt off. The presence of solvents allows mobility of active ingredients and the associated corrosion, thus poses a major threat to the reliability. In this work, a new halogen-free no-clean SnAgCu solder paste, 33-76-1, has been developed. This solder paste exhibited SIR value above the IPC spec 100 MΩ without any dendrite formation, even with a wet flux residue on the comb pattern. The wet flux residue was caused by covering the comb pattern with 10 mm × 10 mm glass slide during reflow and SIR testing in order to mimic the poorly vented low standoff components. The paste 33-76-1 also showed very good SMT assembly performance, including voiding of QFN and HIP resistance. The wetting ability of paste 33-76-1 was very good under nitrogen. For air reflow, 33-76-1 still matched paste C which is widely accepted by industry for air reflow process. The above good performance on both non-corrosivity with wet flux residue and robust SMT process can only be accomplished through a breakthrough in flux technology.

Indium Corporation

Wettable-Flanks: Enabler for the Use of Bottom-Termination Components in Mass Production of High-Reliability Electronic Control Units

Technical Library | 2018-05-23 12:12:43.0

Driven by miniaturization, cost reduction and tighter requirements for electrical and thermal performance, the use of lead-frame based bottom-termination components (LF-BTC) as small-outline no-leads (SON), quad-flat no leads (QFN) packages etc., is increasing. However, a major distractor for the use of such packages in high-reliability applications has been the lack of a visible solder (toe) fillet on the edge surface of the pins: because the post-package assembly singulation process typically leaves bare copper leadframe at the singulation edge, which is not protected against oxidation and thus does not easily solder-wet, a solder fillet (toe fillet) does not generally develop.

Robert Bosch LLC Automotive Electronics Division

Videos: qfn wet (2)

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

[SEC] 3D In-line AXI Solution X-eye 6300 X-ray Inspection Machine

[SEC] 3D In-line AXI Solution X-eye 6300 X-ray Inspection Machine

Videos

3D In-line Automated X-ray Inspection system (machine) Model: X-eye 6300 X-ray Tube: 160kV / 500 µa Table Size: Max. 330 x 250mm Min. 50 x 50mm Detector: 12 inch FPXD Defection type (Application): BGA, PoP, chip, QFN, QFP, etc. - High-speed In-lin

SEC

Career Center - Resumes: qfn wet (1)

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

Express Newsletter: qfn wet (137)

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


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