Industry Directory | Manufacturer's Representative
Manufacturer's representative located in Florida.
New Equipment | Solder Materials
CAS: 68333- 69-7 Rosin Modified Maleic Resins is a light yellow transparent solid, which is synthesized by the addition reaction between gum rosin and maleic anhydride, then through the sterification with glycerol and pentaerythritol. Acid value
New Equipment | Solder Materials
CAS: 64365-17-9 Pentaerythritol Ester of Hydrogenated Rosin is made from hydrogenated rosin through esterification with pentaerythritol. Acid Value, mgKOH/g ≤20 Colour, gradner 8~10 Softening Point, R&B, °C 105~115 Solubility, with toluene
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.
New Equipment | Solder Materials
We provide X~WG Grade of gum rosin. X Grade (http://foreverest.cn/products/rosin-derivatives/gum-rosin-x.html) Appearance: Transparent solid Colour Slight Yellow Acid Value: 166mg KOH/g min Ash: 0.02% max Softening Point, R&B: 76°C min
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
New Equipment | Board Handling - Pallets,Carriers,Fixtures
Durostone® Solder pallets Durostone® Solder pallets - perfectly machined A good example to show the precision of our machining are Durostone® PCB solder pallets. They are used to fix electronic components on printed circuit boads using the wave sold
New Equipment | Cleaning Agents
AQUANOX A4382 is a near-neutral range pH chemistry designed with superior cleaning efficacy with great material compatibility on surface mount assemblies. A4382 most effectively cleans organic acid flux residues at lower concentrations. AQUANOX A4382
New Equipment | Industrial Automation
Want to buy best parts with a competitive price ? Please check it with mailto:unity@mvme.cn! we will response you in 24 hours! Contact: Sandy Lin mailto:unity@mvme.cn Skype: live:onlywnn_1 Telegram:+8618020776786 Mobile(Whatsapp): (+86)-18020776
New Equipment | Solder Materials
During our more than 30 years serving in solder materials with solid R&D and total solution capabilities, Solarjoin delivers the best quality of PV Ribbon and Flux to meet your high reliability requirements. BASE METAL OPTIONS of PV Ribbon: Basic