Kapton® Chosen for Manufacturing Stencils

LPKF Stencil Lasers are widely used worldwide in the electronics industry for manufacturing metal solder paste stencils. A new innovation from LPKF uses Kapton® polyimide material from DuPont to produce a new generation of stencils.

These stencils are used for screen printing solder paste or conductive adhesives onto printed circuit boards. Previously only metal has been used for making stencils. These new polymer stencils use Kapton with a thickness of 50 µm up to 175 µm.

This material thickness is especially suited to the latest ultra-fine pitch PCB applications, which will be the main field of application in the future. Apertures as small as 60 µm can be produced by the LPKF polymer stencil laser in 50 µm Kapton® film.

Advantages of Kapton®Stencils

• Faster printing process-up to 3 times faster
• Extremely smooth edge, giving excellent SMD Paste release
• Superior PCB Contact-best printing results
• Transparent Stencil-easier positioning of frame
• Durability of polymer stencil is substantially higher than metal stencils
• Better memory effect (return to original shape)

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The information give herein is based on data believed to be reliable, but DuPont makes no warranties express or implied as to its accuracy and assumes no liability arising out of its use by others. This publication is not to be taken as a license to operate under, or recommendation to infringe, any patent.

Caution: Do not use in medical applications involving permanent implantation in the human body. For other medical applications, see "DuPont Medical Caution Statement", H-50102.