Fabrication of micromachined uniform microtrench arrays for silicon based filtration membrane

Research output: Contribution to journalArticle

Abstract

In this paper, we report a uniform microtrench array fabricated on silicon substrate. The proposed system is aimed for the biological molecules separation process via filtration in artificial kidney. The system consists of silicon based membrane having arrays of trench with the dimension of approximately 1 µm. The fabrication of the trenches is following standard silicon MEMS process with additional surface modification of the fabricated trench by using thermal oxidation process. The result shows that trench patterns having size of 1~2 µm have been produced. The thermal oxidation process shows that the trench size could be reduced up to 50%. The study will be beneficial for the development of silicon membrane with uniform microtrench arrays for application in filtration of blood cell from other solutes based on molecule size. When the microtrench is etched through the silicon membrane, a filtration membrane is then formed. The separation of solutes will be better due to the uniform size of microtrench.

Original languageEnglish
Pages (from-to)1171-1178
Number of pages8
JournalSains Malaysiana
Volume48
Issue number6
DOIs
Publication statusPublished - 1 Jan 2019

Fingerprint

Membranes
Fabrication
Silicon
Oxidation
Molecules
MEMS
Surface treatment
Blood
Cells
Substrates
Hot Temperature

Keywords

  • Artificial kidney
  • Filtration
  • Silicon membrane
  • Thermal oxidation
  • Uniform microtrench arrays

ASJC Scopus subject areas

  • General

Cite this

Fabrication of micromachined uniform microtrench arrays for silicon based filtration membrane. / Asyikin Mustafa, Kamarul; Yeop Majlis, Burhanuddin; Yunas, Jumril; Hamzah, Azrul Azlan.

In: Sains Malaysiana, Vol. 48, No. 6, 01.01.2019, p. 1171-1178.

Research output: Contribution to journalArticle

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