Non-contact electrical pathway

Details Non-contact electrical pathway Non-contact electrical pathway

1992-06-12

1993-01-12

Anderson, Bruce C.

Radiant energy

Inspection of solids or liquids by charged particles

Positive ion probe or microscope type

250307, 250423P, 324158R, 324158P, 324 713, H01J 3700, G01R 3128

Patent

active

051792796

ABSTRACT:
A method and apparatus for establishing a non-contact signal pathway to conductive surfaces of a circuit includes a laser beam generator and an optical system for focussing a laser beam from the beam generator onto a plasma forming foil. The foil is positioned near the conductive surface so that the plasma touches the foil at a spot. The signal pathway is thus established between the foil and the conductive surface through the plasma. Signals can be applied to and read from the conductive surface through the pathway.

REFERENCES:
patent: 4644264 (1987-02-01), Beha et al.
patent: 4771230 (1988-09-01), Zeh
patent: 4786864 (1988-11-01), Beha et al.
patent: 4970461 (1990-11-01), LePage
patent: 5017863 (1991-05-01), Mellitz
patent: 5032788 (1991-07-01), Ringleb et al.
patent: 5122737 (1992-06-01), Clauberg

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