Microsystem technology has propelled the development of micro and multi-scale manufacturing techniques for more than a decade. Among these techniques, micro powder injection molding is drawing attention recently as one of the most cost-effective processes suitable for medium and mass production of micro components such as ceramic microarrays. Fast mold filling during the fabrication can cause particles to migrate because of the increased shear rate in the cavity. This paper presents an in-depth study on the material homogeneity issue from micro PIM at both macroscale (short shot) and microscopic (binder/powder separation) levels. The study is based on newly developed experimental and simulation platforms which can be used as a development tool for micro PIM and microsystem designs. The implications of using nanoparticulate building blocks for 3-D ceramic microsystems is further discussed.
Journal: TechConnect Briefs
Volume: 3, Technical Proceedings of the 2007 NSTI Nanotechnology Conference and Trade Show, Volume 3
Published: May 20, 2007
Pages: 379 - 382
Industry sector: Sensors, MEMS, Electronics
Topic: Micro & Bio Fluidics, Lab-on-Chip