The method of manufacturing a substrate for a biochip

PROBLEM TO BE SOLVED: To provide a method for manufacturing a substrate for biochip capable of reducing the background noise. SOLUTION: The method for manufacturing the substrate for biochip provided with a probe having a specific chemical reaction with a biological substance to be inspected includes a step for selectively etching a portion of the second layer arranged on a first layer make the first layer expose and a step for immersing the first layer in a sodium solution and introduces a plurality of hydroxy groups in the surface of the first layer. COPYRIGHT: (C)2011,JPO&INPIT