Abstract
The purpose of this research is to establish a self–alignment technique for microparts assembly using liquid surface tension. The self–alignment is carried out in air using a liquid droplet and microparts with two different wettability areas on the surface. This paper describes a method which fixes the micropart during the alignment by using an adhesive as the liquid. The alignment performance and its characteristics are evaluated. Experimental results show that the 1×1×0.15mm3. microparts are aligned by adhesive′s surface tension and simultaneously fixed on the position. The average alignment error in the xy–plane was 2.5µm, while the average angular alignment error was 0.18º. The average strength of adhesive bonding was 0.61N/mm2.
