Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With rotor
Patent
1991-01-02
1992-06-30
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With rotor
324 96, 359265, 359273, G01R 3128, G02F 101
Patent
active
051266601
ABSTRACT:
An integrated circuit device (11) is tested by directing a laser beam (19) onto an electrochromic member (17) in close proximity to a conductor (13) of the integrated circuit. Reflected laser light is directed to a detector (21) which converts it to an electrical signal for display by a lock-in amplifier (25). The display characterizes the voltage on the conductor (17) and thereby permits diagnosis of the operation of the integrated circuit (11).
REFERENCES:
patent: 4105915 (1978-08-01), Clay et al.
patent: 4618449 (1987-07-01), Bloom et al.
patent: 4864222 (1989-09-01), Aoshima et al.
patent: 4875006 (1989-10-01), Henley et al.
patent: 4938571 (1990-07-01), Cogan et al.
"100 GHz On-Wafer S-parameter Measurements by Electrooptic Sampling," R. Majidi-Ahy et al., 1989 IEEE MIT-S Digest, pp. 229-301.
"Fiber Coupling Fabrication with Automatic Fusion-Elongation Processes for Low Excess Loss and High Coupling-Ratio Accuracy," Y. Yokahama et al., Journal of Lightwave Technology, vol. LT-5, No. 7, Jul. 1987, pp. 910-915.
"Thin Film Processing of Polymers for Nonlinear Optics," R. D. Small et al., SPIE, vol. 682, 1986, pp. 160-168.
"Electrochromism for Organic Materials in Polymer All-Solid State Systems," Y. Hirai et al., Applied Physics Letters, vol. 43, No. 7, Oct. 1983, pp. 704-705.
Harvey George T.
Heutmaker Michael S.
Kuzyk Mark G.
Singer Kenneth D.
Anderson R. B.
AT&T Bell Laboratories
Karlsen Ernest F.
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