Substrate processing system, substrate surface processing apparatus, substrate surface inspecting apparatus, substrate surface inspecting method, and storage medium storing program for implementing the method
A substrate processing system which enables a minute pieces of foreign matter attached to a substrate surface to be detected and are suitable for mass production of substrates. The substrate processing system has a substrate processing apparatus that carries out predetermined processing on a substrate. The substrate processing system comprises a substrate surface processing apparatus having a fluid supply unit that supplies onto a surface of the substrate a fluid containing an altering substance that alters a substance exposed at the surface of the substrate, and a substrate surface inspecting apparatus that inspects the surface of the substrate onto which the fluid has been supplied.
1. A substrate surface inspecting method of detecting a foreign matter attached to a substrate surface in a substrate processing system having a substrate processing apparatus that carries out predetermined processing on a substrate, the substrate surface inspecting method comprising:
a fluid supply step of supplying onto a surface of the substrate a fluid containing an altering substance that alters a substance constituting the substrate that is exposed at the surface of the substrate;
a surface altering step of altering the substance constituting the substrate around the attached foreign matter so as to emphasize the presence of the attached foreign matter; and
a substrate surface inspecting step of inspecting the surface of the substrate onto which the fluid has been supplied.
2. A substrate surface inspecting method as claimed in claim 1 , further having a substrate leaving step of, after the fluid has been supplied onto the surface of the substrate, leaving the substrate for a predetermined time period.
3. A substrate surface inspecting method of detecting a foreign matter attached to a substrate surface in a substrate processing system having a substrate processing apparatus that carries out predetermined processing on a substrate, the substrate surface inspecting method comprising:
a surface etching step of etching a surface of the substrate;
a projection forming step of etching the surface of the substrate except a part to which the foreign matter is attached and thereby forming a projection having the attached foreign matter on top thereof so as to emphasize the presence of the attached foreign matter; and
a substrate surface inspecting step of inspecting the surface of the substrate of which the surface has been etched.
4. A substrate surface inspecting method of detecting a foreign matter attached to a substrate surface in a substrate processing system having a substrate processing apparatus that carries out predetermined processing on a substrate, the substrate surface inspecting method comprising:
an exposing step of exposing to light a photosensitive substance that has been applied onto a surface of the substrate;
a projection forming step including
exposing to light the photosensitive substance applied onto the surface of the substrate except a part to which the foreign matter is attached so as to change a chemical structure thereof to be dissolvable by a predetermined solution, and
dissolving and removing the exposed photosensitive substance, thereby forming a projection having the attached foreign matter on top thereof so as to emphasize the presence of the attached foreign matter; and
a substrate surface inspecting step of inspecting the surface of the substrate on which the photosensitive substance has been developed.
5. A substrate surface inspecting method of detecting a foreign matter attached to a substrate surface in a substrate processing system having a substrate processing apparatus that carries out predetermined processing on a substrate, the substrate surface inspecting method comprising:
a pressure reducing step of reducing a pressure in a housing chamber housing the substrate;
a fluid supply step of supplying onto a surface of the substrate a fluid containing a reactive substance that reacts with water to form a solid;
a solid forming step of reacting water, which has been frozen around the attached foreign matter via cooling due to adiabatic expansion in said pressure reducing step, with the reactive substance and thereby forming a solid so as to emphasize the presence of the attached foreign matter; and
a substrate surface inspecting step of inspecting the surface of the substrate onto which the fluid has been supplied.
6. A substrate surface inspecting method of detecting a foreign matter attached to a substrate surface in a substrate processing system having a substrate processing apparatus that carries out predetermined processing on a substrate, the substrate surface inspecting method comprising:
a rapid cooling step of rapidly cooling the substrate;
a fluid supply step of supplying onto a surface of the substrate a fluid containing a reactive substance that reacts with water to form a solid;
a solid forming step of reacting water, which has collected around the attached matter in said rapid cooling step, with the reactive substance and thereby forming a solid so as to emphasize the presence of the attached foreign matter; and
a substrate surface inspecting step of inspecting the surface of the substrate onto which the fluid has been supplied.