PATENT CLAIM ANALYSIS

Application Number: 15986183
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2019-11
Patent Classification: ["438", "003000"]

Abstract:
A MTJ stack is deposited on a bottom electrode. A metal hard mask is deposited on the MTJ stack and a dielectric mask is deposited on the metal hard mask. A photoresist pattern is formed on the dielectric mask, having a critical dimension of more than about 65 nm. The dielectric and metal hard masks are etched wherein the photoresist pattern is removed. The dielectric and metal hard masks are trimmed to reduce their critical dimension to 10-60 nm and to reduce sidewall surface roughness. The dielectric and metal hard masks and the MTJ stack are etched wherein the dielectric mask is removed and a MTJ device is formed having a small critical dimension of 10-60 nm, and having further reduced sidewall surface roughness.

Claim (Index 16):
The method of  claim 13 , wherein the patterning of the dielectric mask and the conductive hard mask includes performing a reactive ion etching process using a chemical selected from the group consisting of fluorine and chlorine.

Metadata:
- Claim Count in Document: 16.0
- Percentile: 93.0
- Lexical Diversity: 2.80851
- Patent Class: 438.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15947512', '15902415', '15856129', '15595484', '15668113']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9060035479608666
- 35 USC 102 Novelty (BERT): 0.5285354372501824
- Combined Prediction Score: 0.8682567368897982
- Mean Citation Score: 327.216164
- Max Citation Score: 358.7005
- Similarity Product: 249.06360815930364

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

Dataset: test