Macropore formation in prepatterned p-type silicon

J. H. Kim, K. P. Kim, H. S. Seo, H. K. Lyu, S. H. Woo, J. H. Lee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The formation of ordered macropores in a prepatterned p-type silicon wafer by electrochemical anodization in HF:H2O:DMSO (dimethyl sulfoxide) and HF:DMSO solutions was investigated. The pore wall thickness in the solutions was found to be reduced with increasing current density. The pore growth rate was compared using two kinds of etch pit; one is for 2 μm lattice spacing, the other is for 5 μm. The growth rate of the macropores for 2 μm size revealed a saturation behavior, while that of 5 μm corresponded to a linear increase in the same range of current density. The big difference in morphologies of macropores between HF:H2O:DMSO and HF:DMSO solutions was accounted for based on the chemical nature of DMSO

Original languageEnglish
Title of host publicationECS Transactions - Porous Semiconductors
Subtitle of host publicationA Symposium Held in Memory of Vitali Parkhutik and Volker Lehmann
PublisherElectrochemical Society Inc.
Pages291-297
Number of pages7
Edition3
ISBN (Print)9781566776493
DOIs
StatePublished - 2009
EventPorous Semiconductors: A Symposium Held in Memory of Vitali Parkhutik and Volker Lehmann - 214th ECS Meeting - Honolulu, HI, United States
Duration: 12 Oct 200817 Oct 2008

Publication series

NameECS Transactions
Number3
Volume16
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

ConferencePorous Semiconductors: A Symposium Held in Memory of Vitali Parkhutik and Volker Lehmann - 214th ECS Meeting
Country/TerritoryUnited States
CityHonolulu, HI
Period12/10/0817/10/08

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