公开(公告)号：US20210399034A1

公开(公告)日：2021-12-23

申请号：US17348884

申请日：2021-06-16

Applicant: DENSO CORPORATION

Inventor： Kouji SATOU ,  Hiroki SASAKI ,  Shotaro MIYAWAKI ,  Akira WADA ,  Satoru WAKIYAMA ,  Kazuhiro AOYAMA

IPC: H01L27/146 ,  H01L23/00

Abstract: A camera module is configured to capture an optical image of a target area and includes a lens member, an imager, a light transmitting member, and a seat. The lens member is configured to receive light from the target area. The imager has a curved portion convex in a direction away from the lens member and is configured to capture the optical image formed on the curved portion. The light transmitting member optically couples the lens member and the imager. The seat has a supporting portion that supports an outer rim of the imager and a fluid space defined inside the supporting portion. A heat dissipation fluid undergoes convection in the fluid space. The curved portion is interposed between the light transmitting member and the seat having the supporting portion and the fluid space.

公开(公告)号：US20150295159A1

公开(公告)日：2015-10-15

申请号：US14683199

申请日：2015-04-10

Applicant: DENSO CORPORATION

Inventor： Akira WADA ,  Noriyuki MATSUSHITA

IPC: H01L41/047 ,  H01L41/187

CPC classification number: G02B26/0858 ,  H01L41/0533 ,  H01L41/0805 ,  H01L41/0933 ,  H01L41/0946 ,  H01L41/1876

Abstract: A piezoelectric element includes a first electrode having a film shape and provided on a base portion, a second electrode having a film shape and opposed to the first electrode on an opposite side of the first electrode from the base portion, a piezoelectric film interposed between the first electrode and the second electrode and partially covered with the second electrode, and an insulation film covering the second electrode and the piezoelectric film with extending over at least a part of an outer edge of the second electrode. The insulation film may cover a whole of the outer edge of the second electrode without covering an inner region of the second electrode. Accordingly, a withstand voltage of the piezoelectric film can be increased.

Abstract translation: 压电元件包括​​具有薄膜形状并设置在基部上的第一电极，具有薄膜形状并与第一电极相对的第一电极相对于第一电极的第二电极与基部相对的第二电极，夹在第一电极之间的压电薄膜 第一电极和第二电极，并且部分地被第二电极覆盖，以及覆盖第二电极和压电膜的绝缘膜，其延伸在第二电极的外边缘的至少一部分上。 绝缘膜可以覆盖第二电极的整个外边缘而不覆盖第二电极的内部区域。 因此，可以提高压电膜的耐压。