Canon Kabushiki Kaisha

Youichi Fukaya

Takayuki Sumida

Akira Shimazu

Shinichiro Watanabe

Hidehiko Fujimura

Motokazu Kobayashi

Takahiro Yajima

Minako Nakasu

Norihiko Ochi

Toshio Tomiyoshi

Hiroto Numazawa

A manufacturing method of a semiconductor apparatus includes preparing an intermediate member that includes a first member having a first substrate comprising a semiconductor element formed thereon, a second member having a second substrate, the second substrate including a part of a circuit electrically connected to the semiconductor element and having a linear expansion coefficient different from that of the first substrate, and a third member having a third substrate showing such a linear expansion coefficient that a difference between itself and the linear expansion coefficient of the first substrate is smaller than a difference between the linear expansion coefficients of the first substrate and the second substrate, and includes bonding the first member and the second member together. A first bonding electrode containing copper electrically connected to the semiconductor element and a second bonding electrode containing copper electrically connected to the circuit are bonded together.

Manufacturing method of semiconductor apparatus and semiconductor apparatus

The present disclosure is a photoelectric conversion element including: a photoelectric conversion layerincluding a first quantum dotand a second quantum dot, a ratio X of the number of heavy metal atoms to the number of oxygen group atoms is less than 2 on a surface of the nanoparticle of the first quantum dot, the ratio X is greater than or equal to 2 on a surface of the nanoparticle of the second quantum dot, and Equation (1) is satisfied:0.3&#x3c;&#x2003;&#x2003;(1),where N denotes a ratio of the number of second quantum dots to the number of first quantum dots.

Photoelectric conversion element

A quantum dot includes an inorganic particle, and an organic ligand and an inorganic ligand on a surface of the inorganic particle, and the molar percentage of the inorganic ligand relative to the total amount of the inorganic ligand and the organic ligand is 25% or more and 99.8% or less.

Quantum dot, photoelectric conversion element including the same, light receiving element, photoelectric conversion apparatus, moving object, method for producing quantum dot, and method for producing photoelectric conversion element

A piezoelectric actuator has a ground substrate layer, an intermediate layer containing at least one of Ti and TiOon the ground substrate layer, an electrode layer containing Pt on the intermediate layer, and a piezoelectric layer containing lead zirconate titanate on the electrode layer, in which the lead zirconate titanate contained in the piezoelectric layer is preferentially oriented in the (100), (001), or (110) direction, the Pt contained in the electrode layer is preferentially oriented in the (111) direction, and the half width of the rocking curve in the (111) plane of the Pt contained in the electrode layer in X-ray diffraction is 1&#xb0; or more.

Piezoelectric actuator, method for manufacturing same, and liquid discharge head

The present invention improves rigidity in a joining portion between a substrate and piezoelectric element, and provides a liquid discharging device having improved vibration properties. A liquid discharging device includes a pressure chamber made up of a space surrounded by a pair of side walls, a floor wall, and a ceiling wall; a substrate configured to make up at least one of the floor wall or ceiling wall; a liquid supplying unit configured to fill the pressure chamber with liquid; and an electrode having a pair of side walls made of piezoelectric elements, configured to apply voltage to the piezoelectric elements in order to shrink the volume of the pressure chamber by deforming the piezoelectric elements and to discharge liquid from the pressure chamber; wherein the tip side face portion of the piezoelectric element is restrained as to the substrate.

Liquid discharging device

To reduce a liquid discharge amount by vibrating meniscuses at high acceleration with displacement of partitions, a plurality of partitions, each formed of a piezoelectric material, are provided to thereby form a plurality of pressure chambers. Each of electrode pairs for shear-deforming each partition is arranged on both sides of a corresponding one of the partitions. A nozzle plate having nozzles each connected to one of the pressure chambers is arranged on the side of a first end of the pressure chambers. Each pressure chamber is formed such that the width of the pressure chamber becomes long as it approaches, from the first end, a second end on the opposite side.

Growing community of inventors

Tokyo, Japan

Youichi Fukaya