RISTON-FX-250

RISTON-FX-250

Riston® FX250 dry film photoresist is ideal for the most challenging new portable designs because it's tough enough to stand up to harsh selective metalization processes, such as electroless nickel immersion gold. 

Special Warnings
  • Consult the Material Safety Data Sheet (MSDS) of any chemical used. MSDS’s for Riston® dry film photoresists are available with compositional information on out-gassing at elevated temperatures.
  • High intensity (> 70 foot-candles) yellow “safe light” can cause a change in steps held and should be avoided.
  • Protect photoresist through lamination and development steps from UV radiation and visible light up to 450 nm by use of yellow, amber or gold fluorescent “safe lights”.
Solutions
  • Batch: up to 25 mil-square feet/ gallon (0.6 mil-m2/liter). Maintain breakpoint at 50% by lowering conveyor speed or by starting batch stripping with a lower breakpoint and changing the solution once breakpoint moves above 50%.
  • Dry Film Photoresist
 
 
 

Features & benefits

  • Excellent Fine Line capability and low sensitivity to offcontact exposure
  • Fully strippable after post-development UV-curing cycle.
  • Negative working, aqueous processable dry film photoresist
  • Outstanding flow characteristics and strong adhesion, particularly over epoxy-based materials
  • Replaces labor-intensive hand taping with an accurate photo-imaging.
  • Specially formulated for secondary imaging in electroless nickel/immersion gold plating (ENIG) and electrolytic Ni/Au when applied over UV-cured LPI solder mask.
  • Wide processing latitude and high yield capable.
    		•
    Over Solder Mask
  • FX250 is best suited for SIT (Secondary Image Transfer) processes where a selective metallization is desired. Adhesion characteristics vary with the type of solder mask used.
    		•
    Filtration Systems
  • FX250 Series film is formulated to produce relatively insoluble stripped skins. Filtration can extend stripping solution life greatly
    		•
    Plating
  • Riston® FX250 is suitable for secondary imaging in a variety of metallization processes, including electroless nickel and gold. It is also compatible electrolytic copper, tin, tin-lead, nickel and gold.
    		•
    Resolution
  • 50 micron features are the finest resolution obtainable in an optimized production environment with acceptable yields attained on full size panels with Riston® FX250 Series photoresist.
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    Available Sizes

    Gross Weight Net Weight Carton Each Carton Length Carton Weight Carton Height
    12400 0 0 0
    81375 0 0 0
    83313 0 0 0
     
     
     

    Physical Properties

    Property Value Unit Method
    Print-Out (Phototropic) Image — (riston-1) — Strong
    Unexposed Color in Yellow Light — (riston-1) — Green
    Odor — (riston-1) — Low
    Panel Exit Temp Qnity SMVL or Drawer-Type Vacuum Laminators — 50 - 70C
    Pre-Heat HRL Hot Roll Laminators — Optional
    Available Thickness — (riston-1) — 50 microns
    Exposed Color in Daylight — (riston-1) — Blue
    Roll Temperature HRL Hot Roll Laminators — 115°C + 5°C (230 +9°F)
    Seal Time ASL/CSL/DFL Automatic/Cut Sheet/Dry Film Laminators — 1-3 seconds
    Contrast to Copper — (riston-1) — Strong
    Platen Temp Qnity SMVL or Drawer-Type Vacuum Laminators — 70 - 85°C
    SMVL Free Space Qnity SMVL or Drawer-Type Vacuum Laminators — 1 - 2 mm (40 - 80 mils)
    Exposure Energy RST SST mJ/cm2 40-150
    Seal Bar Temp ASL/CSL/DFL Automatic/Cut Sheet/Dry Film Laminators — 65 ±15°C (150 ±25°F)
    Roll Speed HRL Hot Roll Laminators — 0.6-1.5 m/min (2-5 ft/min)
    Exposed Color in Yellow Light — (riston-1) — Green
    Seal Bar Pressure ASL/CSL/DFL Automatic/Cut Sheet/Dry Film Laminators — 3.5-4.5 bar (50-65 psig)
    Slap Down Time Qnity SMVL or Drawer-Type Vacuum Laminators — 5 - 10 sec
    Air Assist Pressure HRL Hot Roll Laminators — 0-2.8 bar (0-40 psig)
    Lam. Roll Pressure ASL/CSL/DFL Automatic/Cut Sheet/Dry Film Laminators — 3.0-5.0 bar (45-70 psig)
    Cycle Time Qnity SMVL or Drawer-Type Vacuum Laminators — 30 - 60 sec
    Lamination Temp ASL/CSL/DFL Automatic/Cut Sheet/Dry Film Laminators — 115 ±5°C (230 ±10°F)
    Lamination Speed ASL/CSL/DFL Automatic/Cut Sheet/Dry Film Laminators — 1.5-3 m/min (5-10 ft/min)
    Na2CO3 — (riston-1) — 0.7-1.0 wt%; 0.85 wt% preferred
    — (riston-1) kg wt% x sump vol liters x 0.01
    — (riston-1) lb wt% x sump vol gallons x 0.083
    3.0 wt% (30 g/l) NaOH — (riston-1) sec 70
    1.5 wt% (15 g/l) NaOH — (riston-1) sec 100
    Temperature — (riston-1) — 27-32°C (80-90°F); 30°C (85F) preferred
    K2CO3 — (riston-1) — 0.8-1.0 wt%; 0.9 wt% preferred
    — (riston-1) kg wt% x sump vol liters x 0.01
    — (riston-1) lb wt % x sump vol gallons x 0.083
    Range of pH — (riston-1) — 10.5-11.0
    Spray Nozzles — (riston-1) — high impact direct-fan nozzles
    Resist Loading Range — (riston-1) — 2-12 mil-ft2/gal (0.05 -0.30 mil-m2/ L.)
    1.5 wt% (15 g/l) KOH — (riston-1) sec 140
    D-4000 — (riston-1) liters t% x sump vol liters (or gallons) x 0.018
    3.0 wt% (30 g/l) KOH — (riston-1) sec 70
    Optimum and feed-and-bleed setpoint — (riston-1) — 10.7-10.8
    Clean Breakpoint — (riston-1) — 50-70% (60% preferred)
    Na2CO3•H2O — (riston-1) — 0.8-1.0 wt%; 0.9 wt% preferred
    Spray Pressure — (riston-1) — 1.5 - 1.8 bar (22-25 psig)
     
     
     
    Product Details

    Fabric/material

    GRECO PROD

    Design

    FX250

    Seam

    TM200

    Packaging

    FX250

    Hazard

    Coated Material

    PRIMARY IMAGING FILM

    Features

    CI-ENIG
     
     
     
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