Make sure there won't be a problem if any critical component fails. Keep it short. Please do not fax your idea. Use regular mail or email. If using mail, print diagrams, charts, graphs, and listings on separate sheets.
Handwritten schematics are fine as long as the material is legible.
Don't worry about style or grammar, but make sure we can figure out why your Design Idea is clever, how it works, and which applications it suits. Cahners Business Information , A Division of Reed Elsevier, Inc .