Drawing apparatus and method of manufacturing article
A drawing apparatus includes a first aperture array configured to split a diverging charged particle beam, a converging lens array configured to form a plurality of first crossovers of a plurality of charged particle beams from the first aperture array, a collimator lens having a principal plane where the plurality of first crossovers are to be formed, a correcting system configured to correct angles of a plurality of charged particle beams from the collimator lens and to form a plurality of second crossovers, and an element having a plurality of apertures respectively corresponding to the plurality of second crossovers. The first aperture array and the converging lens array have apertures such that an arrangement of the plurality of first crossovers is different from an arrangement of the plurality of apertures, and that the plurality of second crossovers are aligned with the plurality of apertures on the element.
1. A drawing apparatus configured to perform drawing on a substrate with a plurality of charged particle beams, the apparatus comprising:
a first aperture array configured to split a diverging charged particle beam into a plurality of charged particle beams;
a converging lens array configured to form a plurality of first crossovers of the plurality of charged particle beams from the first aperture array;
a collimator lens having a principal plane where the plurality of first crossovers is to be formed;
a correcting system configured to correct angles of a plurality of charged particle beams from the collimator lens, and to form a plurality of second crossovers; and
an element in which a plurality of apertures respectively corresponding to the plurality of second crossovers is formed,
wherein apertures in the first aperture array and converging lenses in the converging lens array are arranged such that an arrangement of the plurality of first crossovers on the principal plane is different from an arrangement of the plurality of apertures, and that the plurality of second crossovers is aligned with the plurality of apertures on the element.
2. The drawing apparatus according to claim 1 , wherein each of an aperture in the first aperture array and a converging lens in the converging lens array is eccentric relative to a corresponding aperture of the plurality of apertures by an amount based on a polynomial of 3rd-order with respect to an image height.
3. The drawing apparatus according to claim 1 , wherein the correcting system includes a second aperture array configured to define a principal ray of each of the plurality of charged particle beams, and a correction lens array configured to correct an angle of the principal ray of each of the plurality of charged particle beams.
4. The drawing apparatus according to claim 3 , wherein each of an aperture in the second aperture array and a correction lens in the correction lens array is eccentric relative to a corresponding aperture of the plurality of apertures by an amount based on a polynomial of 3rd-order with respect to an image height.
5. The drawing apparatus according to claim 3 , wherein the correcting system further includes a magnifying lens array configured to magnify and project a plurality of third crossovers formed by the correction lens array.
6. The drawing apparatus according to claim 1 , wherein the correcting system includes a second aperture array configured to define a principal ray of each of the plurality of charged particle beams, and a correction deflector array configured to correct an angle of the principal ray of each of the plurality of charged particle beams.
7. The drawing apparatus according to claim 1 , wherein the element includes a blanking stop aperture array.
8. The drawing apparatus according to claim 1 , wherein the element includes a blanking deflector array.
9. A drawing apparatus configured to perform drawing on a substrate with a plurality of charged particle beams, the apparatus comprising:
a first aperture array configured to split a diverging charged particle beam into a plurality of charged particle beams;
a converging lens array configured to form a plurality of first crossovers of the plurality of charged particle beams from the first aperture array;
a collimator lens having a principal plane where the plurality of first crossovers is to be formed;
a correcting system configured to correct angles of a plurality of charged particle beams from the collimator lens, and to form a plurality of second crossovers; and
an element in which a plurality of apertures respectively corresponding to the plurality of second crossovers is formed,
wherein apertures in the first aperture array and converging lenses in the converging lens array are arranged such that an arrangement of the plurality of first crossovers on the principal plane is different from an arrangement of the plurality of apertures, and the correcting system includes a tandem lens array, and the tandem lens array includes a lens which is eccentric relative to a corresponding aperture of the plurality of apertures such that the plurality of second crossovers is aligned with the plurality of apertures on the element.
10. The drawing apparatus according to claim 9 , wherein the element includes a blanking stop aperture array.
11. The drawing apparatus according to claim 9 , wherein the element includes a blanking deflector array.
12. A method of manufacturing an article, the method comprising:
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 is configured to perform drawing on the substrate with a plurality of charged particle beams, the apparatus comprises:
a first aperture array configured to split a diverging charged particle beam into a plurality of charged particle beams;
a converging lens array configured to form a plurality of first crossovers of the plurality of charged particle beams from the first aperture array;
a collimator lens having a principal plane surface where the plurality of first crossovers is to be formed;
a correcting system configured to correct angles of a plurality of charged particle beams from the collimator lens, and to form a plurality of second crossovers; and
an element in which a plurality of apertures respectively corresponding to the plurality of second crossovers is formed,
wherein apertures in the first aperture array and converging lenses in the converging lens array are arranged such that an arrangement of the plurality of first crossovers on the principal plane is different from an arrangement of the plurality of apertures, and that the plurality of second crossovers is aligned with the plurality of apertures on the element.
13. A method of manufacturing an article, the method comprising:
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 is configured to perform drawing on the substrate with a plurality of charged particle beams, the apparatus comprises:
a first aperture array configured to split a diverging charged particle beam into a plurality of charged particle beams;
a converging lens array configured to form a plurality of first crossovers of the plurality of charged particle beams from the first aperture array;
a collimator lens having a principal plane where the plurality of first crossovers is formed;
a correcting system configured to correct angles of a plurality of charged particle beams from the collimator lens, and to form a plurality of second crossovers; and
an element in which a plurality of apertures respectively corresponding to the plurality of second crossovers is formed,
wherein apertures in the first aperture array and converging lenses in the converging lens array are arranged such that an arrangement of the plurality of first crossovers on the principal plane is different from an arrangement of the plurality of apertures, and the correcting system includes a tandem lens array, and the tandem lens array includes a lens which is eccentric relative to a corresponding aperture of the plurality of apertures such that the plurality of second crossovers aligned with the plurality of apertures on the element.