Patent ID: 11948787
Assignee: HAMAMATSU PHOTONICS K.K.
Field: Measurement (Instruments)
Classification: CPC H  C  G | IPC C  G  H

Claim 7:
8. A manufacturing method of a sample support body for ionizing a sample, comprising:
a first step of preparing a base substrate;
a second step of forming an anodic oxide film provided with a plurality of concave portions on a first surface of the base substrate, by anodizing the base substrate, each of the plurality of concave portions extending along a direction perpendicular to the first surface;
a third step of obtaining a substrate formed with a plurality of first through holes corresponding to each of the plurality of concave portions by peeling off the anodic oxide film, the plurality of first through holes opening to the first surface and a second surface opposite to the first surface; and
a fourth step of providing a conductive layer at least on a peripheral portion of the first through hole in the first surface,
wherein in the second step, in a partition portion provided between the adjacent concave portions, a plurality of second through holes communicating the adjacent concave portions are formed.