PATENT CLAIM ANALYSIS

Application Number: 15958461
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["257", "417000"]

Abstract:
A process for manufacturing a MEMS pressure sensor having a micromechanical structure envisages: providing a wafer having a substrate of semiconductor material and a top surface; forming a buried cavity entirely contained within the substrate and separated from the top surface by a membrane suspended above the buried cavity; forming a fluidic-communication access for fluidic communication of the membrane with an external environment, set at a pressure the value of which has to be determined; forming, suspended above the membrane, a plate made of polysilicon, separated from the membrane by an empty space; and forming electrical-contact elements for electrical connection of the membrane and of the plate, which are designed to form the plates of a sensing capacitor, the value of capacitance of which is indicative of the value of pressure to be detected. A corresponding MEMS pressure sensor having the micromechanical structure is moreover described.

Claim (Index 3):
The process according to  claim 1 , wherein forming the plate comprises:\n forming a sacrificial layer at a top surface of the substrate; growing the layer of polysilicon on the sacrificial layer; forming a plurality of through holes in the layer of polysilicon; and partially removing the sacrificial layer through the plurality of through holes and releasing a portion of the layer of polysilicon with respect to the substrate, wherein partially removing the sacrificial layer forms the plate region and the empty space above the membrane.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 91.0
- Lexical Diversity: 2.09211
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15276617', '15365590', '12102709', '15191160', '14316583']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9242688841787968
- 35 USC 102 Novelty (BERT): 0.5419469859065412
- Combined Prediction Score: 0.8860366943515712
- Mean Citation Score: 246.229376
- Max Citation Score: 387.21484
- Similarity Product: 327.49423417726985

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