Document ID: chunk:federal_register_of_legislation:F2024L01024:front:0:p154
Version: federal_register_of_legislation:F2024L01024
Segment Type: other
Provision Reference: 
Character Range: 448674–451546

tools that provide physical processes for semiconductor production that are functionally different, such as deposition, implant or thermal processing.
              2. For the purposes of 3B001.e.2., 'sequential multiple wafer processing' means the capability to process each wafer in different 'semiconductor process tools', such as by transferring each wafer from one tool to a second tool and on to a third tool with the automatic loading multi‑chamber central wafer handling systems.
3. B. 001. f. Lithography equipment as follows:
1. Align and expose step and repeat (direct step on wafer) or step and scan (scanner) equipment for wafer processing using photo‑optical or X‑ray methods and having any of the following:
a. A light source wavelength shorter than 193 nm; or
b. Capable of producing a pattern with a 'Minimum Resolvable Feature size' (MRF) of 45 nm or less;
                  Technical Note:
                  For the purposes of 3B001.f.1.b., the 'Minimum Resolvable Feature size' (MRF) is calculated by the following formula:
                  where the K factor = 0.35
3. B. 001. f. 2. Imprint lithography equipment capable of producing features of 45 nm or less;
                   Note: 3B001.f.2. includes:
                       a. Micro contact printing tools
                       b. Hot embossing tools
                       c. Nano‑imprint lithography tools
                       d. Step and flash imprint lithography (S‑FIL) tools.
3. B. 001. f. 3. Equipment specially designed for mask making having all of the following:
3. B. 001. f. 3. a. A deflected focused electron beam, ion beam or "laser" beam; and
b. Having any of the following:
1. A full‑width half‑maximum (FWHM) spot size smaller than 65 nm and an image placement less than 17 nm (mean + 3 sigma); or
2. Not used;
3. A second‑layer overlay error of less than 23 nm (mean + 3 sigma) on the mask;
3. B. 001. f. 4. Equipment designed for device processing using direct writing methods, having all of the following:
a. A deflected focused electron beam; and
b. Having any of the following:
1. A minimum beam size equal to or smaller than 15 nm; or
2. An overlay error less than 27 nm (mean + 3 sigma);
3. B. 001. g. Masks and reticles, designed for integrated circuits specified by 3A001;
3. B. 001. h. Multi‑layer masks with a phase shift layer not specified by 3B001.g. and designed to be used by lithography equipment having a light source wavelength less than 245 nm;
Note: 3B001.h. does not apply to multi‑layer masks with a phase shift layer designed for the fabrication of memory devices not specified by 3A001.
N.B. For masks and reticles, specially designed for optical sensors, see 6B002.
3. B. 001. i. Imprint lithography templates designed for integrated circuits specified by 3A001;
3. B. 001. j. Mask "substrate blanks" with multilayer reflector structure consisting