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薄膜人生

薄膜光学,魅力人生

 
 
 

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提高附着力的方法  

2008-06-12 14:54:52|  分类: 镀膜技术 |  标签: |举报 |字号 订阅

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There are a number of ways to modify the nucleation density of

depositing atoms on substrate surfaces including:

? Change the deposition temperature

increasing—increases reaction with the surface; increases surface mobility

decreasing—decreases surface mobility

? Increase the deposition rate to increase collision probability of the adatoms

? Change the surface chemistry to make the surface more

reactive—e.g., cleaning,oxygen treatment of polymer

surfaces

? Sensitizing the surface by the addition of “nucleating agents”

? Generation of nucleation sites on the surface—e.g., lattice

defects, charge sites on insulators by

© energetic particle bombardment to produce lattice

defects

© incorporation of species into the surface by ion

implantation or chemical substitution

© electron bombardment —charge centers on

insulator surfaces

© photon bombardment ]—charge centers on insulator

Surfaces

? Co-deposition or absorption of reactive species

? Surface morphology—roughening or smoothing

? Creation of a new surface—“basecoat” or “glue layer”

 

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