Growth of a delta‐doped silicon layer by molecular beam epitaxy on a charge‐coupled device for reflection‐limited ultraviolet quantum efficiency
Autor: | Michael E. Hoenk, Frank J. Grunthaner, P. J. Grunthaner, Hsin-Fu Tseng, Robert W. Terhune, Masoud M. Fattahi |
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Rok vydání: | 1992 |
Předmět: | |
Zdroj: | Applied Physics Letters. 61:1084-1086 |
ISSN: | 1077-3118 0003-6951 |
Popis: | Low-temperature silicon molecular beam epitaxy is used to grow a delta-doped silicon layer on a fully processed charge-coupled device (CCD). The measured quantum efficiency of the delta-doped backside-thinned CCD is in agreement with the reflection limit for light incident on the back surface in the spectral range of 260-600 nm. The 2.5 nm silicon layer, grown at 450 C, contained a boron delta-layer with surface density of about 2 x 10 exp 14/sq cm. Passivation of the surface was done by steam oxidation of a nominally undoped 1.5 nm Si cap layer. The UV quantum efficiency was found to be uniform and stable with respect to thermal cycling and illumination conditions. |
Databáze: | OpenAIRE |
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