CHARACTERIZATION OF DAMAGED LAYER USING AC SURFACE PHOTOVOLTAGE IN SILICON-WAFERS

被引:1
|
作者
SHIMIZU, H [1 ]
MUNAKATA, C [1 ]
机构
[1] HITACHI LTD,CENT RES LAB,KOKUBUNJI,TOKYO 185,JAPAN
关键词
SILICON WAFER; DAMAGED LAYER; ALUMINUM; RCA RINSE; AC SURFACE PHOTOVOLTAGE; SCANNING PHOTON MICROSCOPE;
D O I
10.1143/JJAP.32.3780
中图分类号
O59 [应用物理学];
学科分类号
摘要
AC surface photovoltage (SPV) responds to damaged layers in n-type silicon (Si) wafers with depleted or inverted surfaces. Excited carriers recombine at broken bonds in a damaged layer, and the ac SPV is then reduced depending on whether slight or heavy damage exists at the Si surface. The ac SPV is related to the thermally modulated reflectance signal and, thus, is qualitatively applicable to nondestructive evaluation of the damaged layer.
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页码:3780 / 3781
页数:2
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