Riston® GM130

Riston® GM130

Gold plating had consistently been a problem for the printed circuit board industry until Qnity introduced Riston® GoldMaster. GoldMaster is a fully aqueous resist that simplifies circuit board fabrication with special plating finishes, including nickel and gold plating, selective solder strip and thick plating. GoldMaster, available in a 3 and 4 mil thickness, is a high productivity, easy stripping resist that eliminates extra processing steps, such as UV curing and thermal baking, without compromising quality or cost.

Applications
  • Designed to be used in Nickel/Gold and specialized plating applications such as thick copper plating or selective Sn/Pb strip
  • Strong resistance to lifting on all surfaces. Compatible with incoming copper clad surfaces, scrubbed and unscrubbed electroless, direct metalization processes and panel plated copper.
  • The thicker versions (eg. 75 and 100μm) are suitable for conformation over circuitry as secondary plating resists.
Solutions
  • Dry Film Photoresist
 
 
 

Features & benefits

Stripping
  • Formulated to dissolve slowly in stripping solution after breaking up into pieces. Filtration is strongly recommended.
    		•
    Development
  • Riston® GoldMaster GM100 can be developed in sodium or potassium carbonate with good productivity. It has wide development latitude.
    		•
    Plating
  • Riston® GoldMaster GM100 can be used for pattern plate processes with acid copper, tin/lead, tin, nickel and gold plating baths.
  • Riston® GoldMaster GM100 has very strong resistance to lifting and underplating. The standard plating process conditions should not be altered for the GoldMaster GM100 test probe.
    		•
    Exposure
  • Resolution down to 50 microns (2 mil) lines and spaces is possible with Riston® GoldMaster GM100 in optimized production environments.
  • Riston® GoldMaster GM100 can be exposed on all standard equipment used in the printed circuit board industry. Choose lamps that compliment the peak resist response of 350 to 380 nm
  • Riston® GoldMaster GM100 has better resolution and wider exposure latitude than other resists. It is also more resistant to off-contact exposure defects, which are common in glass/ glass exposure frames.
    		•
    Etching
  • The chemical resistance of GoldMaster GM100 makes it compatible with most commonly used etchants in the PCB industry (eg. ammonical etch and acid etchants cupric chloride, H2O2/H2 SO4 , ferric chloride).
    		•
    Copper Surfaces and Surface Preparation
  • Riston® GoldMaster GM100 has very strong resistance to lifting on all surfaces.
    		•
     
     
     

    Available Sizes

    Gross Weight Net Weight Carton Each Carton Length Carton Weight Carton Height
    11238 0 0 0
    11625 0 0 0
    13853 0 0 0
     
     
     

    Physical Properties

    Property Value Unit Method
    Exposure Range RST SST mJ/cm2 40-95
    Nominal Thickness (riston-19) — (riston-1) — 75µm
    1.5 wt% KOH — (riston-1) sec 190-240
    3.0 wt% NaOH — (riston-1) sec 120-160
    1.5 wt% NaOH — (riston-1) sec 190-240
    3.0 wt% KOH — (riston-1) sec 120-160
    Lamination Speed Automatic Cut Sheet Laminator — 1.5-3 m/min (5-10 ft/min)
    Seal Time Automatic Cut Sheet Laminator — 1-4 seconds
    Lamination Roll Temperature Automatic Cut Sheet Laminator — 100-115°C
    Qnity HRL-24/Yieldmaster® Film Laminator — 110-120°C (230-245°F)
    Pre-Heat Automatic Cut Sheet Laminator — Optional
    Qnity HRL-24/Yieldmaster® Film Laminator — Optional
    Lam. Roll Pressure Automatic Cut Sheet Laminator — 3.0-5.0 bar (43-72 psig)
    Seal Bar Pressure Automatic Cut Sheet Laminator — 3.5-4.5 bar (50-65 psig)
    Air Assist Pressure Qnity HRL-24/Yieldmaster® Film Laminator — 0-2.8 bar (0-40 psig)
    Roll Speed Qnity HRL-24/Yieldmaster® Film Laminator — 0.6-1.5 m/min (2-5 ft/min)
    Seal Bar Temp Automatic Cut Sheet Laminator — 50-80°C
    KOH — (riston-1) — 1.5-3 wt%; faster stripping at 3 wt%
    Batch Processing — (riston-1) — To 12 mil-ft2/gal; to 0.20 m2/liter
    K2CO3 — (riston-1) — 0.75 -1.0 wt%; 0.9 wt% preferred
    NaOH (riston-71) — (riston-1) — 1.5-3 wt%; faster stripping at 3 wt%
    Breakpoint — (riston-1) — 50% or lower
    Feed & Bleed — (riston-1) — 4-8 mil-ft2/gal: 0.07-0.14 m2/liter
    Rinse Spray Nozzles — (riston-1) — High Impact, direct fan nozzles preferred
    Temperature — (riston-1) — 7-35°C (80-95°F); 30°C (85F) preferred
    Drying — (riston-1) — Blow dry throughly; Hot air preferred
    Na2CO3 — (riston-1) — 0.7-1.0 wt%; 0.85 wt% preferred
    Spray Nozzles — (riston-1) — High impact direct fan
    Rinse Water — (riston-1) — Hard water (150-250 ppm CaCO3 equivalent), or soft water are acceptable
    Spray Pressure — (riston-1) — 1.4-2.4 bar (20-35 psig)
    Na2CO3•H2O — (riston-1) — 0.8-1.1 wt%; 1.0 wt% preferred
     
     
     
    Product Details

    Fabric/material

    TOWANDA FLAMMABLE

    Design

    GM130

    Seam

    MM100

    Packaging

    GM130

    Hazard

    Coated Material

    PRIMARY IMAGING FILM

    Features

    CI-CONVENTIONAL
     
     
     
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