Flow path structure, liquid ejecting head, liquid ejecting apparatus, and manufacturing method of flow path structure
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United States of America Patent
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Jun 25, 2019
Grant Date -
Jan 11, 2018
app pub date -
Sep 13, 2017
filing date -
Jul 24, 2015
priority date (Note) -
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Abstract
A flow path structure which forms a flow path of liquid, includes: a light absorbing member (first substrate) having absorbing properties with respect to laser light; a light transmitting member (second substrate) which is joined to the light absorbing member and has transmitting properties with respect to the laser light; a first flow path (flow path) which is surrounded by a welding interface between the light absorbing member and the light transmitting member; and a second flow path which is formed in a flow path pipe (flow path pipe) which protrudes from a front surface opposite of the welding interface in the light transmitting member, and communicates with the first flow path, in which the flow path pipe is included in a region of the first flow path in a plan view from a direction orthogonal to the welding interface.
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