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,
Industry News | 2018-10-18 09:27:40.0
Time Temperature setting wave soldering is the most important in the solder melts
Industry News | 2022-10-12 07:22:35.0
I.C.T As an SMT Factory Solution Partner, Mainly Provide Full SMT Line Machine. Including SMT Pick and Place Machine, PCB Reflow Oven, SMT Stencil Printer, PCB Wave Soldering Machine, PCB Handing Machine and SMT Peripheral Equipment for Global Customers.
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 | 2013-01-17 15:37:21.0
A problem exists with electroless nickel / immersion gold (ENIG) surface finish on some pads, on some boards, that causes the solder joint to separate from the nickel surface, causing an open. The solder has wet and dissolved the gold. A weak tin to nickel intermetallic bond initially occurs, but the intermetallic bond cracks and separates when put under stress. Since the electroless nickel / immersion gold finish performs satisfactory in most applications, there had to be some area within the current chemistry process window that was satisfactory. The problem has been described as a 'BGA Black Pad Problem' or by HP as an 'Interfacial Fracture of BGA Packages…'[1]. A 24 variable experiment using three different chemistries was conducted during the ITRI (Interconnect Technology Research Institute) ENIG Project, Round 1, to investigate what process parameters of the chemical matrix were potentially satisfactory to use and which process parameters of the chemical matrix need to be avoided. The ITRI ENIG Project has completed Round 1 of testing and is now in the process of Round 2 TV (Test Vehicle) build.
LED panel is a kind of flat panel display which is composed of small LED modules. It is the largest and most widely used large-screen panel technology at present. It can be used not only indoors but also outdoors, waterproof, windproof and rain proo
At present, the low-power laser and the medium-power laser are gradually being localized, while the superpower lasers are just beginning to be localized and is accelerating. How to improve the reliability of superpower lasers welding is an urgent tec
Heller Industries Inc. | https://hellerindustries.com/reflow-soldering-problems/
Reflow Soldering Problems? - Heller Home » Reflow Soldering Problems? Coming soon help@hellerindustries.com 1-800-394-OVEN 1-800-394-OVEN Company About News Events Heller Blog Certifications Equipment Convection Reflow Ovens New
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Reflow Soldering Problems-News-Reflow oven,SMT Reflow Soldering Oven-cmsadmin Reflow oven,SMT Reflow Soldering Oven 当前位置: Home >> News >> News Reflow Soldering Problems Reflow Soldering Problems The reflow soldering profile must be matched to the specific requirements of the solder paste as well as the thermal thresholds of the PCB
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