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Multi-layer printed circuit board fabrication system and method

  • US 20030190071A1
  • Filed: 11/07/2001
  • Published: 10/09/2003
  • Est. Priority Date: 11/08/2000
  • Status: Active Grant
First Claim
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1. A method for aligning an image to be recorded by a direct image scanner on an upper layer of a printed circuit board with an image recorded on a lower layer thereof, the method comprising:

  • visually imaging a portion of the image on the lower layer; and

    recording a pattern on the upper layer, referenced to coordinates of the visual image of the portion.

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