PATENT CLAIM ANALYSIS

Application Number: 15991761
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2019-01
Patent Classification: ["257", "401000"]

Abstract:
Embodiments of the present disclosure provide a method of cleaning a lanthanum containing substrate without formation of undesired lanthanum compounds during processing. In one embodiment, the cleaning method includes treating the lanthanum containing substrate with an acidic solution prior to cleaning the lanthanum containing substrate with a HF solution. The cleaning method permits using lanthanum doped high-k dielectric layer to modulate effective work function of the gate stack, thus, improving device performance.

Claim (Index 16):
The method of  claim 15 , wherein doping lanthanum into the high-k dielectric layer comprises:\n forming a first cap layer over the lanthanum containing layer; forming a second cap layer over the first cap layer; annealing the substrate to dope lanthanum into the high-k dielectric layer; and removing the first and second cap layers to expose the unconsumed portions of the lanthanum containing layer, wherein treating the substrate with the acidic solution and cleaning the substrate with the cleaning agent are performed after removing the first and second cap layers to remove the unconsumed portions of the lanthanum containing layer from the substrate.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 93.0
- Lexical Diversity: 1.59184
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15937472', '15964253', '15966299', '15722652', '14340068']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9180431207154294
- 35 USC 102 Novelty (BERT): 0.4733254504507979
- Combined Prediction Score: 0.8735713536889662
- Mean Citation Score: 168.293838
- Max Citation Score: 184.09155
- Similarity Product: 144.8580277059138

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