Product Overview: StenTech Stencils
StenTech, a leading multinational SMT (Surface Mount Technology) Printing Solutions company, offers a comprehensive range of advanced stencil products designed to meet the precise and demanding needs of electronic manufacturing. Here’s an overview of their stencil products, highlighting their key features and functionality.
What the Product Does
StenTech stencils are essential tools in the SMT process, used for applying solder paste onto printed circuit boards (PCBs) with high precision and accuracy. These stencils are crucial for ensuring optimal solder paste deposition, which is vital for the reliable assembly of electronic components.
Key Features and Functionality
Stencil Types
- Laser Cut Stencils: These stencils are crafted using state-of-the-art laser technology, ensuring superior positioning accuracy and sidewall quality. They can be made from materials such as stainless steel and nickel, with thicknesses ranging from 20 um to 1 mm (0.8 to 40 mil).
- Electroformed Stencils (EForm): StenTech’s patented AMTX electroformed stencils feature smooth aperture walls, promoting excellent paste transfer and longevity. These stencils are particularly beneficial for high-performance applications.
- Step Stencils: Also known as multilevel stencils, these are designed with varying material thicknesses to accommodate different solder paste volumes for various components on the same PCB. This includes the ability to step up or step down on both sides of the stencil.
- High Definition Print Stencils (HDP): These stencils are manufactured with high tension mesh to address the challenges posed by smaller components, ensuring exceptional paste deposit and snap-off from the board.
Advanced Nano Coating
- StenTech’s award-winning Advanced Nano coating is a game-changer in stencil technology. This 1-2 um hardened nano coating is applied to the bottom side of the stencil and inside the apertures, leaving the squeegee side uncoated. It features a permanent hydrophobic layer that repels solder flux, enhancing paste transfer efficiency by up to 25%, reducing bridging and paste-related defects, and minimizing underside cleaning.
- The coating is fully cured and ready for use just 10-30 minutes after application, allowing for same-day delivery and use, which significantly improves production efficiency and reduces downtime.
Precision and Accuracy
- StenTech’s stencils boast positional accuracy of /- 2 um and dimensional accuracy of /- 2 um, ensuring optimal solder paste deposition and impeccable printing results.
- The stencils are available in various thicknesses (2 mil to 12 mil) and frame sizes (standard frames from 5×5 to 29×71 inches), with custom frames available upon request.
Durability and Maintenance
- The Advanced Nano coating is more durable than traditional coatings, resistant to abrasion and chemicals (acidic and alkaline from 4-11 pH), and does not suffer from premature wear or degradation.
- StenTech’s stencils, especially those with the Advanced Nano coating, reduce the need for frequent replacements and underside wiping, thereby lowering maintenance and rework costs.
Additional Solutions
- StenTech also offers a range of complementary products, including emulsion screens, wave solder pallets, SMT carriers, pressfit fixtures, conformal coating fixtures, and hand soldering fixtures, all designed to support various aspects of the electronic manufacturing process.
In summary, StenTech’s stencil products are engineered with cutting-edge technology to provide unparalleled precision, durability, and efficiency in electronic manufacturing. Their innovative solutions, such as the Advanced Nano coating, position StenTech as a trusted partner for the most demanding stencil projects across various industries.