Liquid drop discharge head and manufacture method thereof,...

Incremental printing of symbolic information – Ink jet – Ejector mechanism

Reexamination Certificate

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Details

C347S040000, C347S054000, C216S027000, C438S753000, C438S462000, C438S456000

Reexamination Certificate

active

07090325

ABSTRACT:
A liquid drop discharge head includes a chip (21) that is formed by separation of a silicon wafer (20). The silicon wafer (20) has a first direction and a second direction which are mutually intersected. The chip (21) is separated from the silicon wafer (20) by etching the wafer along a separation line (22) parallel to the first direction of the wafer and by dicing the wafer (20) along a separation line (23) parallel to the second direction of the wafer.

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