Title:
OPTICAL SENSOR
Document Type and Number:
Japanese Patent JP2023085909
Kind Code:
A
Abstract:
To integrate light-emitting and light-receiving elements, together with other elements or circuits, into a single package, while reducing crosstalk.SOLUTION: An optical sensor 10 includes: a first and second conductive layers 60, 70 which are provided to a principal surface 52 and a reverse side 54 of a substrate 50; and a conductive via layer 80 which is provided between both conductive layers 60, 70. An integrated circuit 30 that includes a light-emitting element 20 and a light-receiving element 40 is mounted to the first conductive layer 60. The optical sensor 10 further includes a light-transmissive coating member 90 for covering the light-emitting element 20 and the integrated circuit 30 together with the first conductive layer 60. The coating member 90 includes a groove 92 between the light-emitting element 20 and the integrated circuit 30 in a plan view. The first conductive layer 60 includes a first mounting part 62 where the light-emitting element 20 is mounted and a second mounting part 64 where the integrated circuit 30 is mounted. The light-emitting element 20 is electrically connected to the integrated circuit 30 via the first mounting part 62, the conductive via layer 80, the second conductive layer 70 and the second mounting part 64.SELECTED DRAWING: Figure 1
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Inventors:
MASAKI TAKAAKI
Application Number:
JP2021200226A
Publication Date:
June 21, 2023
Filing Date:
December 09, 2021
Export Citation:
Assignee:
ROHM CO LTD
International Classes:
H01L31/12
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda