Technical Library | 2023-01-06 16:09:03.0
The 4-14 IPC Standards Committee recently created a revision to the IPC4552 specification for Electroless Nickel/Immersion Gold (ENIG) finished Printed Circuit Boards (PCB). Revision A brings a more comprehensive evaluation of metal layer thicknesses measurement, composition and introduces, for the first time, a quality aspect for nickel corrosion which has been historically connected to a defect called black line nickel or black pad.
Used SMT Equipment | Pick and Place/Feeders
2 pick and place modules with 5 placement heads each placement performance max. 14400 according IPC component spectrum 0201 - 55x55mm, optionally larger component hight 10mm over 10mm, optionally 20mm over 20mm placement accurac
1-22 Layers PCBs FR-4, Rogers, High Tg FR4, CEM-1, CEM-3, etc. Material 0.4-6.0 mm Board Thickness Lead Free HASL, ENIG, Immersion Tin, Immersion Silver, OSP etc. Treatment Green, Red, White, Yellow, Black, Blue Solder Mask
New Equipment | Assembly Services
Material: FR-4 Layer: 2 Board thickness: 1.0 mm Copper: 1 oz Surface finish: LEAD FREE HASL Min through hole: 0.3 mm Min line width: 0.3 mm Min line space:0.3 mm Soldermask color: Green Silkscreen color: white RoHS certificate
New Equipment | Assembly Services
Material: FR-4 Layer: 2 Board thickness: 1.0 mm Copper: 1 oz Surface finish: LEAD FREE HASL Min through hole: 0.3 mm Min line width: 0.3 mm Min line space:0.3 mm Soldermask color: Green Silkscreen color: white RoHS certificate
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
Industry Directory | Consultant / Service Provider / Manufacturer
Hongkong sunway circuit is specialized in Printed Circuit Board (PCB) enterprise, is the one dedicated to PCB,PCBA,SMT,STENCILS,special material (Rogers ,Metal-core ,Teflon,Aluminum)factory from china
Used SMT Equipment | Pick and Place/Feeders
SIPLACE SX2 Parameters： Gantries：2 IPC value：59,000cph SIPLACE benchmark value：74,000cph Theoretical value：86,900cph Machine size：1.5x2.4m Placement head feature：MultiStar Component spectrums(mm²)：01005-50x40mm Placement accuracy：±41μm/3σ(C&P)~±34μm
Used SMT Equipment | Pick and Place/Feeders
SIPLACE SX1 Parameters： Gantries：1 IPC value：29,500cph SIPLACE benchmark value：37,000cph Theoretical value：43,450cph Machine size：1.5x2.4m Placement head feature: SpeedStar Component spectrums(mm²)：0201(metric)-6x6mm Placement accuracy：±41μm
IPC is the trade association for the printed wiring board and electronics assembly industries.
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