PATENT CLAIM ANALYSIS

Application Number: 15899567
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["324", "762010"]

Abstract:
Method and device for detecting the process corner of a transistor are provided. The process corner detection method includes providing a ring oscillator. The ring oscillator includes an odd number of oscillation units connected in series and an output port of one of the oscillation units serves as the output port of the ring oscillator to output an oscillation signal. Each oscillation unit is constructed based on a PMOS transistor and an NMOS transistor. The process corner detection method further includes measuring the period of the oscillation signal and the maintaining time of the oscillation signal at a high level and a low level in each cycle; and determining the process corner of the PMOS transistor and the NMOS transistor in the oscillation unit based on the period of the oscillation signal and the maintaining time of the oscillation signal at a high level and a low level in each cycle.

Claim (Index 4):
The method according to  claim 3 , wherein determining the process corner of the PMOS transistor and the NMOS transistor in the oscillation unit based on the first comparison result and the second comparison result comprises:\n determining the process corner of the PMOS transistor and the NMOS transistor in the oscillation unit as slow NMOS slow PMOS, when the period of the oscillation signal is greater than the first threshold value, and the maintaining time of the oscillation signal at the high level and at the low level in each cycle is the same; determining the process corner of the PMOS transistor and the NMOS transistor in the oscillation unit as standard NMOS slow PMOS, when the period of the oscillation signal is greater than the first threshold value, and the maintaining time of the oscillation signal at the high level is greater than the maintaining time at the low level in each cycle; determining the process corner of the PMOS transistor and the NMOS transistor in the oscillation unit as slow NMOS standard PMOS, when the period of the oscillation signal is greater than the first threshold value, and the maintaining time of the oscillation signal at the high level is smaller than the maintaining time at the low level in each cycle; determining the process corner of the PMOS transistor and the NMOS transistor in the oscillation unit as fast NMOS fast PMOS, when the period of the oscillation signal is smaller than the second threshold value, and the maintaining time of the oscillation signal at the high level and at the low level in each cycle is same; determining the process corner of the PMOS transistor and the NMOS transistor in the oscillation unit as fast NMOS standard PMOS, when the period of the oscillation signal is smaller than the second threshold value, and the maintaining time of the oscillation signal at the high level is greater than the maintaining time at the low level in each cycle; determining the process corner of the PMOS transistor and the NMOS transistor in the oscillation unit as standard NMOS fast PMOS when the period of the oscillation signal is smaller than the second threshold value and the maintaining time of the oscillation signal at the high level is smaller than the maintaining time at the low level in each cycle; determining the process corner of the PMOS transistor and the NMOS transistor in the oscillation unit as standard NMOS standard PMOS when the period of the oscillation signal is larger than the second threshold value but smaller than the first threshold value, and the maintaining time of the oscillation signal at the high level and at the low level in each cycle is the same; determining the process corner of the PMOS transistor and the NMOS transistor in the oscillation unit as fast NMOS slow PMOS, when the period of the oscillation signal is larger than the second threshold value and smaller than the first threshold value, and the maintaining time of the oscillation signal at the high level is larger than the maintaining time at the low level in each cycle; and determining the process corner of the PMOS transistor and the NMOS transistor in the oscillation unit as slow NMOS fast PMOS, when the period of the oscillation signal is larger than the second threshold value and smaller than the first threshold value, and the maintaining time of the oscillation signal at the high level is smaller than the maintaining time at the low level in each cycle.

Metadata:
- Claim Count in Document: 18.0
- Percentile: 88.0
- Lexical Diversity: 2.75439
- Patent Class: 324.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12694481', '11808516', '15167073', '14160375', '15341352']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5957626175877636
- 35 USC 102 Novelty (BERT): 0.4806864889993664
- Combined Prediction Score: 0.5842550047289239
- Mean Citation Score: 197.031432
- Max Citation Score: 200.21881
- Similarity Product: 143.73579045751987

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

Dataset: test