Patent ID: 11913947
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G  B | IPC A  B  C  G

Claim 9:
10. A method for manufacturing a digital immunochip, comprising:
sequentially forming a driving electrode, a dielectric layer and a first hydrophobic layer on a first base substrate to form a first substrate;
forming a plurality of sample portions on a second base substrate through a patterning process;
forming an immunoassay substance on the plurality of sample portions to form a second substrate; and
aligning and assembling the first substrate and the second substrate to form the digital immunochip,
wherein forming the plurality of sample portions on the second base substrate through the patterning process comprises:
forming a second hydrophobic film layer and a photoresist layer on the second base substate;
removing a portion of the photoresist layer and the corresponding second hydrophobic film layer through an etching process to form a patterned photoresist layer and a patterned second hydrophobic layer;
forming a sample portion film layer on the second base substrate, such that a portion of the sample portion film layer falls into a plurality of via holes exposing a lower surface of the second base substrate, and the other portion of the sample portion film layer is on a side of the photoresist layer away from the second base substrate; and
removing, through a stripping process, the patterned photoresist layer and the other portion of the sample portion film layer on the side of the photoresist layer away from the second base substrate, so as to form the plurality of sample portions, wherein
a surface of the patterned second hydrophobic layer proximal to the first substrate is a flat surface, surfaces of the plurality of sample portions proximal to the first substrate are flat surfaces, and the surface of the patterned second hydrophobic layer proximal to the first substrate is on the same plane as the surfaces of the plurality of sample portions proximal to the first substrate, and
the plurality of sample portions have a thickness the same as a thickness of the patterned second hydrophobic layer.