Patent ID: 9586207
Date: 2017-03-07
CPC Classifications: B01L,B81B,B81C,H01L

Claim:
1. A method for the capillary self-assembly of a plate and a carrier, comprising: forming an etching mask on a region of a substrate; reactive-ion etching the substrate, the reactive-ion etching comprising a series of cycles each including an isotropic etching followed by a surface passivation, wherein a duration of the isotropic etching for each cycle increases from one cycle to another, a ratio between durations of the surface passivation and isotropic etching of each cycle is lower than a ratio for carrying out a vertical anisotropic etching, to form a carrier having an upper surface defined by the region and side walls forming an acute angle with the upper surface; removing the etching mask; placing a droplet on the upper surface of the carrier; and placing the plate on the droplet.