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Selective Transfer Technology for Microdevice Distribution

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4 Author(s)
Guerre, R. ; IBM Res. GmbH, Ruschlikon ; Drechsler, U. ; Jubin, D. ; Despont, M.

We have developed a generic cost-efficient CMOS-compatible heterogeneous device integration method at wafer-scale level. This method enables the distribution of devices from one to numerous wafers using selective transfer technology. We have applied this method for the distribution of atomic force microscopy (AFM) cantilevers and successfully demonstrated the population of multiple wafers from one source wafer. The distribution function has been designed such as to populate 42 wafers with only one source wafer. This CMOS back-end-of-the-line compatible method is particularly suitable for microelectromechanical systems and integrated circuits. Electrical interconnects are compatible with this technology. We present the concept, the selective transfer method, including a laser ablation technique used for the transfer, as well as the process and results of the application for AFM cantilever distribution.

Published in:

Microelectromechanical Systems, Journal of  (Volume:17 ,  Issue: 1 )