Document ID: chunk:federal_register_of_legislation:F2024L01024:front:0:p155
Version: federal_register_of_legislation:F2024L01024
Segment Type: other
Provision Reference: 
Character Range: 451275–454304

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 of molybdenum and silicon, and having all of the following:
1. Specially designed for 'Extreme Ultraviolet' ('EUV') lithography; and
2.  Compliant with SEMI Standard P37.
Technical Note:
For the purposes of 3B001.j., 'Extreme Ultraviolet' ('EUV') refers to electromagnetic spectrum wavelengths greater than 5 nm and less than 124 nm.
3. B. 002. Test equipment specially designed for testing finished or unfinished semiconductor devices as follows and specially designed components and accessories therefor:
a. For testing S‑parameters of items specified by 3A001.b.3.;
b. Not used;
c. For testing items specified by 3A001.b.2.
3. B. 901. Equipment designed for dry etching having any of the following:
a. Equipment designed or modified for isotropic dry etching, having a largest 'silicon germanium-to-silicon (SiGe:Si) etch selectivity' of greater than or equal to 100:1; or
b. Equipment designed or modified for anisotropic dry etching, having all of the following;
1. Radio Frequency (RF) power source(s) with at least one pulsed RF output;
2. One or more fast gas switching valve(s) with switching time less than 300 milliseconds; and
3. Electrostatic chuck with twenty or more individually controllable variable temperature elements.
Note 1: 3B901 includes etching by 'radicals', ions, sequential reactions or non sequential reactions.
Note 2: 3B901. includes etching using RF pulse excited plasma, pulsed duty cycle excited plasma, pulsed voltage on electrodes modified plasma, cyclic injection and purging of gases combined with a plasma, plasma atomic layer etching or plasma quasiatomic layer etching.
Technical Notes:
           1. For the purposes of 3B901., 'silicon germanium-to-silicon (SiGe:Si) etch selectivity' is measured for a Ge concentration of greater than or equal to 30% (Si0.70 Ge0.30).
           2. For the purposes of 3B901. Note 1., 'radical' is defined as an atom, molecule or ion that has an unpaired electron in an open electron shell configuration.
3. B. 902. Scanning Electron Microscope (SEM) equipment designed for imaging semiconductor devices or integrated circuits, having all of the following:
a. Stage placement accuracy less (better) than 30 nm;
b. Stage positioning measurement performed using laser interferometry;
c. Position calibration within a Field-Of-View (FOV) based on laser interferometer length-scale measurement;
d. Collection and storage of images having more than 2x108 pixels;
e. FOV overlap of less than 5% in vertical and horizontal directions;
f. Stitching overlap of FOV less than 50 nm; an
g. Accelerating voltage more than 21 kV.
Note 1: 3B902. includes SEM equipment designed for chip design recovery.
Note 2: 3B902. does not control SEM equipment designed to accept a Semiconductor Equipment