Method of making thermal print head

Details Method of making thermal print head Method of making thermal print head

2005-08-12

2008-10-28

Ahmed, Shamim (Department: 1792)

Etching a substrate: processes

Forming or treating thermal ink jet article

C216S013000, C216S017000, C216S018000, C216S059000, C216S061000, C029S610100, C438S021000

Reexamination Certificate

active

07442318

ABSTRACT:
A method of manufacturing a thermal print head includes a conductor layer formation step, a first measurement step, a conductor layer splitting step and a second measurement step. In the conductor layer formation step, a single conductor layer including first and second measurement points is formed on a substrate. In the first measurement step, the electrical resistance is measured in the conductor layer, between the first and the second measurement points. In the conductor layer splitting step, a predetermined portion of the conductor layer is removed, so that a first electrode including the first measurement point and a second electrode including the second measurement point are formed. In the second measurement step, the resistance between the first and the second electrodes is measured. If the conductor layer has a disconnected portion in the first measurement step, a repairing conductor is formed on the disconnected portion.

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