Patent ID: 8470184
Filing Date: 2013-06-25
Classification: B81B,B81C

Abstract:
1. A method for making a micro device including at least one cavity, formed in a thickness of the substrate, the method comprising: a) making in at least one first substrate assembled to a second substrate via an interface, at least one first trench around at least one sacrificial block of the first substrate, by etching the first substrate so as to expose the interface; and b) removing the sacrificial block so as to make at least one first cavity in the first substrate, wherein the first substrate and the second substrate are adhesively bonded, the interface being an adhesive bonding interface, and wherein the adhesive bonding interface between the first substrate and the second substrate is discontinuous and comprises areas based on at least one adhesive bonding material and areas forming an empty space between the first and the second substrate.