Koh Young Technology Inc.

Hyundai Pharm Co., Ltd.

Min Cheol Yoon

Jin Man Kang

Joong Ki Jeong

Jung Ho Son

Se Rin Lee

Dong Il Lee

Pung Sok Lee

A printed circuit board inspection apparatus can inspect the mounting state of a component by generating depth information on the component mounted on a printed circuit board by using a pattern of light reflected from the component and received by an image sensor, inputting the generated depth information into a machine-learning-based model, obtaining depth information with reduced noise from the machine-learning-based model, and using depth information with reduced noise.

Method for inspecting mounting state of component, printed circuit board inspection apparatus, and computer readable recording medium

A printed circuit board inspection apparatus can inspect a mounting state of a component by generating depth information on the component by using a pattern of light reflected from the component mounted on a printed circuit board received by an image sensor, generating two-dimensional image data for the component by using at least one of light of a first wavelength, light of a second wavelength, light of a third wavelength, and light of a fourth wavelength reflected from the component received by a first image sensor, inputting the depth information and the two-dimensional image data for the component into a machine learning-based model, obtaining depth information with reduced noise from the machine learning-based model, and using the noise-reduced information.

Provided is a skin external composition, which includes tranexamic acid or a salt thereof and a skin penetration enhancer, thereby showing remarkably increased skin permeability and improved sense of use, skin irritation, and storage stability.

Growing community of inventors

Seoul, South Korea

Min Cheol Yoon