Merchant & Gould P.C.
Electronic device including first substrate having first and second surfaces opposite from each other, second substrate facing first surface, and drive circuit facing second surface
An electronic device includes: a first substrate having a first surface and a second surface opposite from the first surface; a second substrate facing the first surface; driven elements provided at the second substrate; a drive circuit facing the second surface; a first interconnect provided at the first surface; a second interconnect provided at the second surface; a through-substrate interconnection part penetrating the first substrate in a thickness direction thereof; a first bump part; and a second bump part. The drive circuit is capable of outputting drive signals for driving the driven elements. The through-substrate interconnection part electrically connects the first interconnect and the second interconnect. The first bump part electrically connects the first interconnect and the driven elements. The second bump part electrically connects the second interconnect and the drive circuit. The through-substrate interconnection part has an electrical resistance lower than an electrical resistance of the second bump part.
BROTHER KOGYO KABUSHIKI KAISHA
H H H H H B H B H H H H H H B H H H B H H H H H H H B H H
H01L H01L H01L H01L H01L B41J H01L B41J H01L H01L H01L H01L H01L H01L B41J H01L H01L H01L B41J H01L H01L H01L H01L H01L H01L H01L B41J H01L H01L
additional additional inventional inventional inventional additional additional inventional additional inventional additional additional additional additional additional additional inventional additional additional inventional inventional inventional additional inventional additional additional additional additional inventional
Keita
Hirai