Micro-patterning of silicon by frictional interaction and chemical reaction

Dae Eun Kim, Jae Joon Yi

Research output: Contribution to journalConference articlepeer-review

Abstract

In this paper a novel and economical method of generating three-dimensional micro-patterns on single crystal silicon without the need for a mask is presented. The technique is based on the fundamental understanding of frictional interaction at light loads. Micro-patterning is done through a two-step process that comprises mechanical scribing and chemical etching. The basic idea is to induce micro-plastic deformation along a prescribed track through frictional interaction between the tool and the workpiece. Then, by exposing the surface to a chemical under controlled conditions, preferential chemical reaction is induced along the track to form hillocks about 5 μm wide and 1 μm high. This method of micro-machining may be used for making patterns in micro-electro-mechanical systems (MEMS) at low cost. Furthermore, this process demonstrates how microtribological processes can be utilized in the fabrication of micro-structures.

Original languageEnglish
JournalAmerican Society of Mechanical Engineers (Paper)
Publication statusPublished - 1997
EventProceedings of the 1997 Joint ASME/STLE/IMechE World Tribology Conference - London, UK
Duration: 1997 Sep 81997 Sep 12

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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