VIPER®
Seamless squeegee performance
VIPER® Step Stencils use laser-welded step technology to create precise, localized thickness variations (30µm or 150µm) within a single stencil. Ideal for mixed-technology PCBs (e.g., fine-pitch QFNs + large passives), helps support Pin in Paste applications, eliminating pre-form dependencies, VIPER® eliminates the need for multiple stencils or pasting processes—reducing setup time and improving yield. Combined with our COBRA® technologies (VIPER-C® or VIPER-X®), you’ll be adding to the value and lifespan of your investment.
Ready to upgrade your SMT printing with VIPER® technology? Contact us for stencil specifications tailored to your requirements!
Key Advantages
Laser-Welded Precision: Steps maintain original plenum thickness with no distortion to aperture geometry.
Seamless Squeegee Travel: Uniform weld edges prevent paste leakage.
30µm/60µm Standard Steps: Custom step heights available after board file analysis.
Additional perks when combined with COBRA® technology, VIPER-C® (COBRA® VIPER®).
Performance & Compatibility
Aperture Coining: >1° for thicknesses <6 mils
Fiducial Alignment: ±5µm to pad (laser-etched for easy targeting, matches COBRA® precision standards)
Tension Stability: 28–35 N/cm² (optimal performance >35 N/cm²)
Frame Options: Green/Gray Tubular or Space Saver
Material: Fine-grain stainless steel (FG 304 or customer-specified).
Step tolerance: ±2%.
Durability & Maintenance
Lifespan: 150,000+ print cycles (with proper care)
Cleaning: Resists IPA, plasma, and ultrasonic methods
Inspection Criteria: Apertures must remain contamination-free; tension ≥28 N/cm²
