11.1.2 Aperture Size and Shape for Terminal Pad
- Aspect ratio (width/thickness) is more than 1.5
- Aperture shape
- The stencil aperture is designed to match the pad size on the PCB
- Oval-shaped opening is used to get the optimum paste release
- Rounded corners to minimize clogging
- Positive taper walls (5° tapering) with the bottom opening larger than the top opening