PATENT CLAIM ANALYSIS

Application Number: 16056840
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["257", "416000"]

Abstract:
A MEMS microphone includes a substrate having a cavity, a back plate provided over the substrate and having a plurality of acoustic holes, a diaphragm disposed between the substrate and the back plate, and spaced apart from the substrate and the back plate, a strut located at outer side of the diaphragm, having a lower surface in contact with an upper surface of the substrate and being integrally formed with the upper insulation layer to support the upper insulation layer to space the upper insulation layer from the diaphragm, and a bending prevention member provided on an upper surface of the back plate for preventing the back plate from being bent.

Claim (Index 17):
A method of manufacturing a MEMS microphone, comprising:\n forming a lower insulation layer and a diaphragm sequentially on a substrate being divided into a vibration area, a supporting area surrounding the vibration area, and a peripheral area surrounding the supporting area; forming a sacrificial layer on the lower insulation layer to cover the diaphragm; forming a back plate on the sacrificial layer and in the vibration area; patterning the sacrificial layer and the lower insulation layer to form a strut hole in the supporting area for forming a strut; patterning an insulation layer formed on the sacrificial layer to form an upper insulation layer holding the back plate and the strut supporting the upper insulation layer; forming a thin film on the upper insulation layer and the strut, the thin film having a tensile stress higher than that of the insulation layer; patterning the thin film to form a bending prevention member covering an upper surface of the strut; patterning the back plate and the upper insulation layer to form a plurality of acoustic holes which penetrate through the back plate and the upper insulation layer; patterning the substrate to form a cavity in the vibration area; and performing an etching process using the cavity and the acoustic holes to remove portions of the sacrificial layer and the lower insulation layer, located at positions corresponding the vibration area and the supporting area.

Metadata:
- Claim Count in Document: 25.0
- Percentile: 96.0
- Lexical Diversity: 2.22642
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15497374', '15497358', '15497366', '15364728', '15798836']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.920192167113812
- 35 USC 102 Novelty (BERT): 0.5102261535760503
- Combined Prediction Score: 0.8791955657600359
- Mean Citation Score: 260.911964
- Max Citation Score: 315.89304
- Similarity Product: 278.9569070200253

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