Abstract:
Disclosed is a process, structure, equipment and apparatus directed to a low cost, high volume approach for the assembly of ultra small die to three-dimensional (3D) or 2.5 D semiconductor packages.
Abstract:
A method of forming surface protrusions on an article, and the article with the protrusions attached. The article may be an Integrated Circuit (IC) chip, a test probe for the IC chip or any suitable substrate or nanostructure. The surface protrusions are electroplated to a template or mold wafer, transferred to the article and easily separated from the template wafer. Thus, the attached protrusions may be, e.g., micro-bumps or micro pillars on an IC chip or substrate, test probes on a probe head, or one or more cantilevered membranes in a micro-machine or micro-sensor or other micro-electro-mechanical systems (MEMS) formed without undercutting the MEMS structure.