Test mark and electronic device incorporating the same

Details Test mark and electronic device incorporating the same Test mark and electronic device incorporating the same

2005-08-30

2005-08-30

Nguyen, Vinh (Department: 2829)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

C361S756000

Reexamination Certificate

active

06937004

ABSTRACT:
A test mark is provided, for use in an inspection after a display panel, TAB tapes, and a flexible board have been connected together. Defective panels can be rejected with high accuracy in the simple inspection, thereby mitigating the burden on the microscopic inspection. At a predetermined distance from each of connection areas for connecting a panel substrate, TAB tapes, and a flexible board, there are provided test marks with at least one on each component. The electrical connection is tested between each pair of the test marks to thereby determine whether the interconnection is in a good state.

REFERENCES:
patent: 4721365 (1988-01-01), Nishimura
patent: 4949035 (1990-08-01), Palmer, II.
patent: 6239590 (2001-05-01), Krivy et al.

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