PATENT CLAIM ANALYSIS

Application Number: 16032838
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["257", "393000"]

Abstract:
An SRAM includes a substrate containing a plurality of first substrate regions and a plurality of second substrate regions, a plurality of pull-down transistors formed in the first substrate regions with each pull-down transistor including a first gate structure, and a plurality of pass-gate transistors formed in the second substrate regions with each pass-gate transistor including a second gate structure. A portion of the first substrate region under each first gate structure is doped with first doping ions and a portion of the second substrate region under each second gate structure is doped with second doping ions. Moreover, the concentration of the first doping ions is less than the concentration of the second doping ions, and the work function of the first work function layer in the first gate structures is greater than the work function of the second work function layer in the second gate structures.

Claim (Index 1):
A method for fabricating a static random access memory (SRAM), comprising:\n providing a substrate including a plurality of first substrate regions and a plurality of second substrate regions; forming a first doped region in each first substrate region by implanting first doping ions; forming a second doped region in each second substrate region by implanting second doping ions; forming a plurality of pull-down transistors in the first substrate regions with each pull-down transistor including a first gate structure formed on the first doping region; and forming a plurality of pass-gate transistors in the second substrate regions with each pass-gate transistor including a second gate structure formed on the second doping region, wherein:\n a concentration of the first doping ions is smaller than a concentration of the second doping ions; \n forming the first gate structure includes forming a first gate dielectric layer on the first doping region, forming a first work function layer on the first gate dielectric layer, and forming a first gate electrode layer on the first work function layer; \n forming the second gate structure includes forming a second gate dielectric layer on the second doping region, forming a second work function layer on the second gate dielectric layer, and forming a second gate electrode layer on the second work function layer; and \n a work function of the first work function layer is greater than a work function of the second work function layer.

Metadata:
- Claim Count in Document: 38.0
- Percentile: 95.0
- Lexical Diversity: 3.5814
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15407387', '15821422', '15808781', '14987192', '15826043']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9122496444787632
- 35 USC 102 Novelty (BERT): 0.5313284903618831
- Combined Prediction Score: 0.8741575290670751
- Mean Citation Score: 264.108764
- Max Citation Score: 361.8745
- Similarity Product: 318.37768903023004

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