PATENT CLAIM ANALYSIS

Application Number: 16273510
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-06
Patent Classification: ["427", "569000"]

Abstract:
A method of preparing a crystalline thin film having a formula MY 2  includes (1) preparing an MY x  amorphous film by atomic layer deposition on a surface of a substrate, and (2) annealing the amorphous MY x  film at 350° C. or more to provide the crystalline MY 2  film. The amorphous MY x  film is formed from at least one metal M precursor and at least one element Y precursor, wherein x is 1.5 to 3.1, M is tungsten or molybdenum, and Y is sulfur or selenium. Step (1) includes a) introducing a first metal M precursor or element Y precursor into a deposition chamber, b) purging with inert gas, c) introducing a second metal M precursor when the first precursor is element Y, or element Y precursor when the first precursor is metal M, d) purging with inert gas, e) repeating steps a) to d), and f) obtaining the amorphous MY x  film.

Claim (Index 1):
A method of preparing a crystalline thin film having a formula MY 2 , the method comprising:\n a first step of preparing an amorphous film having the formula MY x  by atomic layer deposition on a surface of a substrate from at least one precursor of a metal M and at least one precursor of an element Y,\n wherein x is in the range from 1.5 to 3.1, \n wherein M is tungsten or molybdenum, \n wherein a degree of oxidation of metal M in the at least one precursor of metal M is in the range from 3 to 6, \n wherein the metal of the precursor of metal M only comprises simple or multiple bonds M-Z and/or M-M, wherein Z=C, N, H, and any combination of these atoms, \n wherein Y is sulfur or selenium, \n wherein the precursors of metal M and of element Y are halogen free, and \n wherein the first step of preparing the amorphous film having the formula MY x  comprises the steps of\n a) introducing, by a single pulse, a first precursor of metal M or of element Y into a deposition chamber of an ALD reactor, \n b) purging the deposition chamber with an inert gas, \n c) introducing, by a single pulse, a second precursor into the deposition chamber, the second precursor being a precursor of metal M when the first precursor is a precursor of element Y, or a precursor of element Y when the first precursor is a precursor of metal M, \n d) purging the deposition chamber with an inert gas, \n e) repeating steps a) to d) in order to provide the amorphous film having the formula MY x , \n wherein a substrate temperature is lower than or equal to 350\u00b0 C., during steps a) to d) to avoid the formation of crystals that are randomly oriented with respect to the substrate, and \n f) obtaining the amorphous film having the formula MY x  having a thickness of less than 100 nanometers; and \n \n a second step of annealing the amorphous film having the formula MY x  at a temperature of 350\u00b0 C. or more to provide a crystalline film having a formula MY 2 , wherein the crystalline film has crystal lattices whose basal planes are stacked in planes parallel to the surface of the substrate on which the crystalline film is formed.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 99.0
- Lexical Diversity: 2.44
- Patent Class: 427.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13132369', '15940533', '12303169', '11712342', '09620162']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7935133370328259
- 35 USC 102 Novelty (BERT): 0.4827283685466634
- Combined Prediction Score: 0.7624348401842096
- Mean Citation Score: 177.96143
- Max Citation Score: 184.07077
- Similarity Product: 133.58498906390787

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test