PATENT CLAIM ANALYSIS

Application Number: 15980141
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2019-03
Patent Classification: ["257", "382000"]

Abstract:
The present application relates to a technical field of semiconductors, and discloses a device having a physically unclonable function, a method for manufacturing same, and a chip using same. The may method include: providing a substrate structure that comprises: a substrate comprising encryption device areas and reference device areas; at least one first gate structure on the encryption device areas and used in an encryption device and a first spacer layer on a side wall of the first gate structure; a first interconnection layer on the encryption device areas and the first spacer layer; at least one second gate structure on the reference device areas and used in a reference device and a second spacer layer on a side wall of the second gate structure; and a second interconnection layer on the reference device area and the second spacer layer; performing first ion injection, so as to introduce first impurities into the first interconnection layer; performing second ion injection, so as to introduce second impurities into the first and second interconnection layers, where a password of the device having a physically unclonable function is determined according to a drain current of each encryption device and a drain current of a reference device corresponding to the encryption device.

Claim (Index 1):
A method for manufacturing a device having a physically unclonable function, comprising:\n providing a substrate structure, the substrate structure comprising:\n a substrate comprising encryption device areas and reference device areas; \n a first gate structure positioned on the encryption device areas and configured for use in an encryption device; \n a first spacer layer on a side wall of the first gate structure; \n a first interconnection layer on the encryption device areas and the first spacer layer; \n a second gate structure positioned on the reference device areas and configured for use in a reference device; \n a second spacer layer on a side wall of the second gate structure; and \n a second interconnection layer on the reference device area and the second spacer layer; \n performing a first ion injection, the first ion injection comprising introducing first impurities into the first interconnection layer; and performing a second ion injection, the second ion injection comprising introducing second impurities into the first interconnection layer and the second interconnection layer, wherein the second impurities in the first interconnection layer are diffused to the encryption device areas at two sides of the first gate structure, to form a first source area and a first drain area used in the encryption device; the second impurities in the second interconnection layer are diffused to the reference device areas at two sides of the second gate structure, to form a second source area and a second drain area used in the reference device, and wherein a password of the device having a physically unclonable function is determined according to a drain current of each encryption device and a drain current of a reference device corresponding to the encryption device.

Metadata:
- Claim Count in Document: 18.0
- Percentile: 93.0
- Lexical Diversity: 3.05479
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14696616', '11287594', '15644614', '13687104', '15390279']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.907079528596302
- 35 USC 102 Novelty (BERT): 0.4698451905880453
- Combined Prediction Score: 0.8633560947954764
- Mean Citation Score: 155.366664
- Max Citation Score: 163.87292
- Similarity Product: 123.35040453842166

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

Dataset: test