Apparatus and method for producing an ion channel microprobe
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United States of America Patent
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Oct 29, 2002
Grant Date -
N/A
app pub date -
Jun 15, 2000
filing date -
Jun 15, 2000
priority date (Note) -
Expired
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Abstract
A noncontact method and apparatus for testing electrical circuitry which provides large improvements in both resolution and speed. The attributes of noncontact, high resolution, and speed are satisfied by using inexpensive low intensity resonant laser beams in a shroud gas preferably comprising rubidium atoms in argon gas to create an electrically conductive ion channel microprobe. The conductive ion channel microprobe can be used to create an electrically conductive path between a circuit's test pad or point and signal generation and detection apparatus. If the circuit's test pad or point is functioning properly, then the ion channel microprobe will complete the electrically conductive path, the signal generation device will produce a signal over the conductive path and the signal detection device will detect or measure the signal. If the circuit's test pad or point is malfunctioning, the conductive path will remain open and the signal detection device will not detect a signal.
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