Technical Library | 2023-04-25 22:03:25.0
This report hopes to achieve several goals: 1. Determine the link between bare PWB contamination, soldered assembly contamination and long-term product reliability. 2. Establish measurable limits for bare PWB cleanliness as well as process control limits for both an aqueous as well as a water-soluble soldering process. 3. Determine whether there is any correlation between common, industry-accepted rose/modified rose (omegameter/ionograph type) testing and long term product reliability. 4. Determine the effect PWB plating finish (HASL, Immersion Silver and Cu OSP) has on both bare PWB contamination as well as soldered assembly in a no clean and water soluble process. 5. Determine whether there is a link between percentage of saponifier used to wash soldered assemblies and long-term reliability. 6. Establish a more cost-effective test for manufacturers to use as a process-monitoring tool.
Industry Directory | Consultant / Service Provider / Manufacturer
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pcb assembly,pcb manufacture,printed board pbc Industrial Control Interface Board PCBA GTA-002 Catalog:pcb, pcb assembly,pcb manufacture, printed circuit board, pcb supply, pcb boards, electrical.suppliers. Raw Material: FR4 Finish: ENIG/ OSP/ H
PC boards and kits for machine set-up and calibration, hand solder training, rework, practice, testing and more along with a drawing of each PCB. Practical has a PCB board or kit to meet your requirements. BGA Fine Pitch, Global Daisy-Chain or Vari
Layer: 8 layers Material: FR-4 Board Thickness: 0.6mm Surface Finish: Immersion Gold 1~4u Copper Thickness: 1/3 oz Impedance, 4/4mils width/spacing Layers: 2--36layers Max manufacturing size: 640mm*1100mm Copper foil thickness: 0.5OZ-13OZ M
Layer: 2 Material: FR-4 Board Thickness: 1.6mm Surface Finish: HAL Copper Thickness: 2/2 oz Green Solder Mask Layers: 2--36layers Max manufacturing size: 640mm*1100mm Copper foil thickness: 0.5OZ-13OZ Min line width/space: 3mil/3mil Min
Layer: 6 layers Material: FR-4 Board Thickness: 1.0mm Surface Finish:ENIG Copper Thickness: 1 oz all layers Blind via L1~L2 and L1~L3 Layers: 2--36layers Max manufacturing size: 640mm*1100mm Copper foil thickness: 0.5OZ-13OZ Min line width
Industry News | 2009-03-12 18:45:55.0
OSAKA, JAPAN � March 2009 � Nihon Superior Co. Ltd., a supplier of advanced soldering and brazing materials to the global market, announces that Keith Sweatman, Nihon Superior Co. Ltd.'s Senior Technical Advisor, will present a paper titled �Hot Air Solder Levelling in the Lead-free Era� at the upcoming APEX Conference and Exhibition. The presentation will take place during Session 28, titled Surface Finishes, on Thursday, April 2, 2009 from 9-10 a.m.
New Equipment | Assembly Services
The board is designed by customer and it's for Mobile Phone. We did one-Stop EMS Service for this project (PCB manufacture, components sourcing, SMT and THT assembly): Product name: 6 Layer PCBA board Material: FR-4 TG180, Shengyi Thicknss: 1.0mm Su
Technical Library | 2021-04-08 00:30:49.0
As the electronic industry moves to lead-free assembly and finer-pitch circuits, widely used printed wiring board (PWB) finish, SnPb HASL, has been replaced with lead-free and coplanar PWB finishes such as OSP, ImAg, ENIG, and ImSn. While SnPb HASL offers excellent corrosion protection of the underlying copper due to its thick coating and inherent corrosion resistance, the lead-free board finishes provide reduced corrosion protection to the underlying copper due to their very thin coating. For ImAg, the coating material itself can also corrode in more aggressive environments. This is an issue for products deployed in environments with high levels of sulfur containing pollutants encountered in the current global market. In those corrosive environments, creep corrosion has been observed and led to product failures in very short service life (1-5 years). Creep corrosion failures within one year of product deployment have also been reported. This has prompted an industry-wide effort to understand creep corrosion
