Invention Grant
US07669329B2 Apparatus of fabricating and method of fabricating liquid ejection head, and liquid ejection head 失效
制造液体喷射头的制造方法和液体喷射头

Apparatus of fabricating and method of fabricating liquid ejection head, and liquid ejection head
Abstract:
A method of fabricating a liquid ejection head is provided. The method includes preparing a first die including projected streak portions aligned in parallel by a predetermined pitch and gap portions formed between the adjacent projected streak portions. The first die is adapted to form groove-like recess portions by pressing the projected streak portions to a metal plate. The method further includes preparing a second die for supporting the metal plate to which the projected streak portions of the first die are pressed. Each of the projected streak portions includes: an inner wall forming portion for forming an inner wall of the corresponding groove-like recess portion extending in a depth direction of the corresponding groove-like recess portion; a connecting face portion; and an inclined face portion, continuous via the connecting face portion to the inner wall forming portion, for forming a bottom portion of the corresponding groove-like recess portion into a substantially V-like shape.
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