- 스텐실 프린팅 공정에서 미세범프의 성형성 향상을 위한 연구
- ㆍ 저자명
- 서원상,민병욱,박근,이혜진,김종봉,Seo. W.S.,Min. B.W.,Park. K.,Lee. H.J.,Kim. J.B.
- ㆍ 간행물명
- 한국생산제조시스템학회지
- ㆍ 권/호정보
- 2012년|21권 1호|pp.26-32 (7 pages)
- ㆍ 발행정보
- 한국생산제조시스템학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
In the present study, the stencil printing process using solder paste are numerically analyzed. The key design parameters in the stencil printing process are the printing conditions, stencil design, and solder paste properties. Among these parameters, the effects of printing conditions including the squeegee angle and squeegee pressure are investigated through finite element (FE) analysis. However, the FE analysis for the stencil printing process requires tremendous computational loads and time because this process carries micro-filling through thousands of micro-apertures in stencil. To overcome this difficulty in simulation, the present study proposes a two-step approach to sequentially perform the global domain analysis and the local domain analysis. That is, the pressure development under the squeegee are firstly calculated in the full analysis domain through the global analysis. The filling stage of the solder paste into a micro-aperture is then analyzed in the local analysis domain based on the results of the preceding global analysis.