Drawing apparatus, and method of manufacturing article
The present invention provides a drawing apparatus for performing drawing on a substrate with a charged particle beam, the apparatus comprising an optical system configured to irradiate the substrate with the charged particle beam, a substrate stage configured to hold the substrate, an aperture member provided with the substrate stage, a detector configured to detect a charged particle beam having passed through an aperture of the aperture member, and a support configured to support the detector, wherein the support and the substrate stage are separated from each other.
1. A drawing apparatus for performing drawing on a substrate with a charged particle beam, the apparatus comprising:
an optical system configured to irradiate the substrate with the charged particle beam;
a substrate stage configured to move while holding the substrate;
an aperture member provided on the substrate stage;
a detector configured to detect a charged particle beam having passed through an aperture of the aperture member; and
a support configured to support the detector,
wherein the support and the substrate stage are separated from each other, and the support is supported by a member, which is different from the substrate stage and is able to be positioned at an opposite side to a surface of the substrate stage holding the substrate.
2. The apparatus according to claim 1 , further comprising a driving device configured to move the support so as to arrange the detector under the aperture member in a case where the detector detects a charged particle beam.
3. The apparatus according to claim 1 , further comprising a controller configured to obtain a characteristic of the charged particle beam based on information representing a position of the substrate stage and an output from the detector.
4. The apparatus according to claim 3 , wherein the controller is configured to control an operation of at least one of the optical system and the substrate stage based on the characteristic.
5. The apparatus according to claim 1 , wherein the detector includes a converter configured to convert a charged particle beam having entered the detector into light, and a photodetector configured to detect the light from the converter.
6. The apparatus according to claim 1 , further comprising a cooler configured to cool the detector.
7. A method of manufacturing an article, the method comprising steps of:
performing drawing on a substrate using a drawing apparatus;
developing the substrate on which the drawing has been performed; and
processing the developed substrate to manufacture the article,
wherein the drawing apparatus performs drawing on the substrate with a charged particle beam, and includes:
an optical system configured to irradiate the substrate with the charged particle beam;
a substrate stage configured to move while holding the substrate;
an aperture member provided on the substrate stage;
a detector configured to detect a charged particle beam having passed through an aperture of the aperture member; and
a support configured to support the detector,
wherein the support and the substrate stage are separated from each other, and the support is supported by a member, which is different from the substrate stage and is able to be positioned at an opposite side to a surface of the substrate stage holding the substrate.
8. The apparatus according to claim 1 , wherein
the substrate stage includes a through-hole, and
the detector is configured to detect the charged particle beam having passed through the aperture of the aperture member and at least a part of the through-hole.
9. The apparatus according to claim 8 , wherein the support is configured to support the detector such that the detector is arranged in the through-hole.
10. The apparatus according to claim 1 , wherein the member includes a moving member which moves the substrate stage.
11. The apparatus according to claim 10 , wherein the moving member includes a stage which moves in a stroke larger than a moving stroke of the substrate stage.
12. The apparatus according to claim 3 , wherein the characteristic includes a relative position between the charged particle beam and the substrate stage.
13. A drawing apparatus for performing drawing on a substrate with a charged particle beam, the apparatus comprising:
an optical system configured to irradiate the substrate with the charged particle beam;
a substrate stage configured to move while holding the substrate;
an aperture member provided on the substrate stage; and
a detector configured to detect a charged particle beam having passed through an aperture of the aperture member,
wherein the detector is supported by a member, which is different from the substrate stage and is able to be positioned at an opposite side to a surface of the substrate stage holding the substrate.
14. The apparatus according to claim 13 , wherein
the substrate stage includes a beam transmitting space, and
the detector is configured to detect the charged particle beam having passed through the aperture of the aperture member and at least a part of the beam transmitting space.
15. The apparatus according to claim 1 , wherein the member is configured to support the detector so as not to be in contact with the substrate stage, and be positioned in accordance with a position of the substrate stage.
16. The apparatus according to claim 13 , wherein the member is configured to support the detector so as not to be in contact with the substrate stage, and be positioned in accordance with a position of the substrate stage.