Industry Directory | Consultant / Service Provider / Manufacturer
One of the major suppliers of stencils and pallets to the SMT industry. Stentech offers Electroformed and laser cut stencils, pallets and fixtures.
2,0 Cpk @ ±17,5 μmDemision:1300mm×1000mm×1600mmProduct description: ASM DEK TQ SMT Stencil Printer, Max PCB: 400x400 mm, Core cycle time：5 secs, Demision:1300mm×1000mm×1600mm, Wet print capability > 2,0 Cpk @ ±17,5 μm ASM DEK TQ SMT Stencil Prin
New Equipment | Solder Materials
Alpha has a range of flux cored solder wires for component attach, rework and touch-up soldering for through-hole and surface mount technologies. The range includes no-clean, water-soluble and activated rosin fluxes in a variety of solder alloys. A
Electronics Forum | Mon Sep 13 22:32:41 EDT 2010 | genesan
Hi all good morning and need advice from expertise here. One of my customer complain that they have constantly issues with one of their product and ask us to do cross section.The report show there was “no wetting to the PCB copper pad” and cause the
Electronics Forum | Mon Sep 13 22:58:49 EDT 2010 | genesan
Hi all good morning and need advice from expertise here. One of my customer complain that they have constantly issues with one of their product and ask us to do cross section.The report show there was “no wetting to the PCB copper pad” and cause the
Used SMT Equipment | Screen Printers
DEK 03IX automatic solder paste printing machine features advanced up/down k-view vision system, independent control and adjustment of lighting, high-speed moving lens, accurate alignment of PCB PCB and net board. The DEK Horizon 03IX automatic solde
.JPG)
Used SMT Equipment | SPI / Solder Paste Inspection
The LSM300 follows the successful Laser section Microscopes LSM and LSM2. This new non-contact laser based system is an off-Line solder paste inspection system.LSM300 provides automatic height measurements, eliminating the inconsistencies of manual m
Industry News | 2018-10-18 09:34:29.0
Application of lead-free solder
Industry News | 2018-10-18 08:00:40.0
SMT solder joint quality and appearance inspection process
Technical Library | 2022-10-31 17:25:37.0
Mixed formulation solder alloys refer to specific combinations of Sn-37Pb and SAC305 (96.5Sn–3.0Ag–0.5Cu). They present a solution for the interim period before Pb-free electronic assemblies are universally accepted. In this work, the surfaces of mixed formulation solder alloys have been studied by in situ and real-time Auger electron spectroscopy as a function of temperature as the alloys are raised above the melting point. With increasing temperature, there is a growing fraction of low-level, bulk contaminants that segregate to the alloy surfaces. In particular, the amount of surface C is nearly _50–60 at. % C at the melting point. The segregating impurities inhibit solderability by providing a blocking layer to reaction between the alloy and substrate. A similar phenomenon has been observed over a wide range of (SAC and non-SAC) alloys synthesized by a variety of techniques. That solder alloy surfaces at melting have a radically different composition from the bulk uncovers a key variable that helps to explain the wide variability in contact angles reported in previous studies of wetting and adhesion. VC 2011 American Vacuum Society. [DOI: 10.1116/1.3584821]
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.
Lyra Reflow Oven is a soft soldering that realizes the mechanical and electrical connection between the solder ends of surface mount components or the pins and the printed board pads by remelting the solder paste pre-distributed on the printed board
· What is the difference between SMT vacuum reflow soldering machine and ordinary reflow soldering machine? · What problems can be solved by smt vacuum reflow soldering machine? · What is the basic principle of vacuum reflow machine? · Ho
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.
Events Calendar | Tue Feb 19 00:00:00 EST 2019 - Tue Feb 19 00:00:00 EST 2019 | Elkridge, Maryland USA
SMTA Capital Chapter: Non-Destructive BGA/Area Array Component Rework
Events Calendar | Wed Dec 06 00:00:00 EST 2017 - Wed Dec 13 00:00:00 EST 2017 | Rolling Meadows, Illinois USA
X-Ray of PCBs Webtorial
Career Center | Bangalore, Indiana India | Production,Quality Control
Line audits 5’s line audits RoHS line audits Screen printing machine operating S.M.T M/c Operator “Siemens” HS-60, S-27, F5HM. S.M.T Fuji, cp6, ip3, xp143 & 243 M/c Technician. Awareness of reflow profiling and verification Servicing of mobile sets a
Career Center | brampton, Ontario Canada | Engineering,Management,Production,Technical Support
- More than 14 years of experience in set-up, calibrate, program, troubleshoot SMT machines and SMT process, for the manufacturing of PCB Electronic Assemblies - 5 year experience in leading position for electronic manufacturing/Process Engineering.
SMT Express, Volume 2, Issue No. 3 - from SMTnet.com Volume 2, Issue No. 3 Thursday, March 16, 2000 Featured Article Return to Front Page Curtailing Voids in Fine Pitch Ball Grid Array Solder Joints by Gary Morrison and Kevin Lyne
Heller Industries Inc. | https://hellerindustries.com/opensor-insufficient-solder/
: Non-coplanar leads on the component Excessive warpage of the PCB or substrate Poor wetting Insufficient amount of solder due to improper printing parameters Skips in the printed solder due to blocked
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/efd/resource-center/solder-selection-guide
Monel Nichrome Nickel Nickel Iron / Alloy42 Nickel Silver Palladium Platinum Silver Solder Plated Stainless Steel Tin Titanium Non-solderable Zinc Key Recommended Alloy Specific (contact EFD
