The 66th JSAP Spring Meeting, 2019

Presentation information

Oral presentation

23 Joint Session N "Informatics" » 23.1 Joint Session N "Informatics"

[9p-W321-1~14] 23.1 Joint Session N "Informatics"

Sat. Mar 9, 2019 1:45 PM - 5:45 PM W321 (W321)

Toru Ujihara(Nagoya Univ.), Hideki Yoshikawa(NIMS)

5:30 PM - 5:45 PM

[9p-W321-14] Efficient estimation for red-zone in silicon wafers for solar cells using machine learning

〇(M1)Shota Hozumi1, Kentaro Kutsukake2, Kota Matsui2, Ichiro Takeuchi1,2,3 (1.NITech, 2.RIKEN, 3.NIMS)

Keywords:machine learning, mapping, experimental design

Mapping measurement to find the spatial distribution of physical quantity by changing the measurement position on the sample surface is a fundamental material evaluation method.
Usually it's mapped with lattice-like coordinates, but also inefficient measurement points
for the purpose of measurement are included in that case.
Therefore, we aimed to obtain more probable physical quantity distribution from fewer measurement points.
In this study, we used LSE to efficiently estimate the boundary position for carrier lifetime mapping of silicon for solar cells, and estimated the low quality region.