Sn96.5Ag3.0Cu0.5 no-clean Solder Paste NP560 lead-free soldering paste SMT Solder Paste Sn96.5Ag3.0Cu0.5 no-clean Solder Paste NP560 flux solder paste Product description: Sn96.5Ag3.0Cu0.5 no-clean Solder Paste NP560 is a no-clean, lead-free,
Sn96.5Ag3.0Cu0.5 no-clean Solder Paste NP560 lead-free soldering paste SMT Solder Paste Sn96.5Ag3.0Cu0.5 no-clean Solder Paste NP560 flux solder paste Product description: Sn96.5Ag3.0Cu0.5 no-clean Solder Paste NP560 is a no-clean, lead-free,
Electronics Forum | Thu Sep 17 12:22:43 EDT 2009 | babe7362000
I was hoping someone could help me on this issue. We currently have this customer that needs their board extemely clean. We have tried many cleaning solutions at no end. We used an ionic cleaner still did not work. Their test is very tight and I w
Electronics Forum | Fri Oct 17 22:36:35 EDT 2008 | arosario
Hi All, We just started build a new product and I am encountering many non-wet rejects in our new product. I need help on what should I look into to improve our Yield. Please see below back ground 1. We are using DEK Infinity as printer. 2. We are mo
Industry News | 2003-06-11 08:00:48.0
IPC has begun a comprehensive study of the three leading lead-free alloys (Tin-Silver-Copper) in an effort to analyze the properties of the leading candidates for lead-free assembly.
Industry News | 2014-01-29 10:18:33.0
The SMTA Capital Chapter is pleased to announce its first meeting of 2014 on March 4th, from 5:30 pm until 8 pm at Johns Hopkins Applied Physics Lab, 11100 Johns Hopkins Road, Laurel, MD 20723.
Technical Library | 2023-08-04 15:27:30.0
A designed experiment evaluated the influence of several variables on appearance and strength of Pb-free solder joints. Components, with leads finished with nickel-palladium-gold (NiPdAu), were used from Texas Instruments (TI) and two other integrated circuit suppliers. Pb-free solder paste used was tin-silver-copper (SnAgCu) alloy. Variables were printed wiring board (PWB) pad size/stencil aperture (the pad finish was consistent; electrolysis Ni/immersion Au), reflow atmosphere, reflow temperature, Pd thickness in the NiPdAu finish, and thermal aging. Height of solder wetting to component lead sides was measured for both ceramic plate and PWB soldering. A third response was solder joint strength; a "lead pull" test determined the maximum force needed to pull the component lead from the PWB. This paper presents a statistical analysis of the designed experiment. Reflow atmosphere and pad size/stencil aperture have the greatest contribution to the height of lead side wetting. Reflow temperature, palladium thickness, and preconditioning had very little impact on side-wetting height. For lead pull, variance in the data was relatively small and the factors tested had little impact.
Technical Library | 2024-04-08 15:46:36.0
A designed experiment evaluated the influence of several variables on appearance and strength of Pb-free solder joints. Components, with leads finished with nickel-palladium-gold (NiPdAu), were used from Texas Instruments (TI) and two other integrated circuit suppliers. Pb-free solder paste used was tin-silver-copper (SnAgCu) alloy. Variables were printed wiring board (PWB) pad size/stencil aperture (the pad finish was consistent; electrolysis Ni/immersion Au), reflow atmosphere, reflow temperature, Pd thickness in the NiPdAu finish, and thermal aging. Height of solder wetting to component lead sides was measured for both ceramic plate and PWB soldering. A third response was solder joint strength; a "lead pull" test determined the maximum force needed to pull the component lead from the PWB. This paper presents a statistical analysis of the designed experiment. Reflow atmosphere and pad size/stencil aperture have the greatest contribution to the height of lead side wetting. Reflow temperature, palladium thickness, and preconditioning had very little impact on side-wetting height. For lead pull, variance in the data was relatively small and the factors tested had little impact.
| https://www.eptac.com/faqs/ask-helena-leo/ask/information-on-lead-free-soldering
+books covers 10 books written on the subject. http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=lead+free+solder+paste+books&sprefix=lead+free+solder+paste+n%2Caps%2C241&rh=i%3Aaps%2Ck%3Alead+free+solder+paste+books , is about lead-free solder paste books
ASCEN Technology | https://www.ascen.ltd/Products/Solder_paste_printer/394.html
: SMT PCB Solder Paste Screen Printer for SMT is needed to screen print solder paste onto the printed circuit board (PCB) before placement of surface mount components (SMD
COT specializes in high quality SMT nozzles and consumables for pick and place machines. We provide special engineering design service of custom nozzles for those unique and odd components.
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Gainesville, GA USA
Phone: (770) 538-0411
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