User:Asj/Notes about laser cutting solder stencils

From Nottinghack Wiki
< User:Asj
Revision as of 16:52, 19 May 2024 by Asj (talk | contribs) (Created page with "Most pads are ok - perhaps a bit large. Small pitch QFN packages are a problem. To do these, * For each QFN pad, downsize "solder paste absolute clearance" to -0.09 and prod...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

Most pads are ok - perhaps a bit large.

Small pitch QFN packages are a problem. To do these,

  • For each QFN pad, downsize "solder paste absolute clearance" to -0.09 and produce solder mask svg
  • Configure Light burn to engrave at
    • 100mm/s at 30%
    • Line interval of 0.02mm
Retrieved from "https://wiki.nottinghack.org.uk/index.php?title=User:Asj/Notes_about_laser_cutting_solder_stencils&oldid=28313"