Method of fabrication to sharpen corners of Y-branches in integrated optical components and other micro-devices

   
   

Substantially sharp corners for optical waveguides in integrated optical devices, photonic crystal devices, or for micro-devices, can be fabricated. Non-sharp corners such as rounded corners, are first formed using lithographic patterning and vertical etching. Next, isotropic etching is used to sharpen the rounded corners. A monitor can be used to determine if the rounded corners have been sufficiently sharpened by the isotropic etching.

Las esquinas substancialmente agudas para las guías de onda ópticas en dispositivos ópticos integrados, dispositivos cristalinos photonic, o para los micro-dispositivos, pueden ser fabricadas. las esquinas No-agudas tales como esquinas redondeadas, primero se forman usando modelar litográfico y la aguafuerte vertical. La aguafuerte siguiente, isotrópica se utiliza para afilar las esquinas redondeadas. Un monitor se puede utilizar para determinarse si las esquinas redondeadas han sido afiladas suficientemente por la aguafuerte isotrópica.

 
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