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METHOD FOR CHECKING LAYERS OF POROUS SILICON ON SINGLE-CRYSTALLINE SILICON FOR UNIFORMITY

机译:单晶硅上均匀性检查多孔硅层的方法

摘要

FIELD: nondestructive detection of nonuniformity of pore distribution in porous silicon layers. SUBSTANCE: porous surface is irradiated with light and intensity of reflected beam from different sections is recorded; intensity of reflected light is measured and then structure is elastically deformed by bending so that porous structure becomes convex. Intensity of reflected light is measured again and degree of uniformity of porous silicon layer is detected by variations in light intensity measured before and after deformation. EFFECT: improved sensitivity of procedure in checking porous silicon layer for uniformity of pore distribution. 1 ex
机译:领域:无损检测多孔硅层中孔分布的不均匀性。实质:用光照射多孔表面,并记录不同截面反射光束的强度;测量反射光的强度,然后通过弯曲使结构弹性变形,从而使多孔结构凸出。再次测量反射光的强度,并通过变形前后测量的光强度的变化来检测多孔硅层的均匀度。效果:提高了检查多孔硅层孔分布均匀性的敏感性。 1前

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