PATENT CLAIM ANALYSIS

Application Number: 16052261
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["257", "416000"]

Abstract:
In accordance with an embodiment, microelectromechanical microphone includes a holder and a sound detection unit carried on the holder. The sound detection unit includes a planar first membrane, a planar second membrane arranged at a distance from the first membrane, a low-pressure chamber formed between the first membrane and the second membrane, a reduced gas pressure relative to normal pressure being present in the low-pressure chamber, a reference electrode arranged at least in sections in the low-pressure chamber, where the first and second membranes are displaceable relative to the reference electrode by sound waves to be detected, the reference electrode includes a planar base section and a stiffening structure provided on the base section, and the stiffening structure is provided on a side of the base section that faces the first membrane or/and on a side of the base section that faces the second membrane.

Claim (Index 17):
A method for producing a microelectromechanical microphone comprising a holder and a sound detection unit carried on the holder the sound detection unit comprising a planar first membrane, a planar second membrane arranged at a distance from the first membrane, wherein at least one of the first membrane or the second membrane is formed at least partly from a first electrically conductive material, a low-pressure chamber formed between the first membrane and the second membrane, a reduced gas pressure relative to normal pressure being present in said low-pressure chamber, a reference electrode arranged at least in sections in the low-pressure chamber, said reference electrode being formed at least in sections from a second electrically conductive material, wherein the first and second membranes are displaceable relative to the reference electrode by sound waves to be detected, wherein the reference electrode comprises a planar base section and also a stiffening structure provided on the base section, said stiffening structure being provided on a side of the base section that faces the first membrane or/and on a side of the base section that faces the second membrane, wherein the method comprises:\n forming the first membrane on a substrate; depositing a first sacrificial material layer onto the first membrane; forming the reference electrode on the first sacrificial material layer; depositing a second sacrificial material layer onto the reference electrode; forming the second membrane on the second sacrificial material layer; removing a part of the first sacrificial material layer and of the second sacrificial material layer in order to form a chamber between the first membrane and the second membrane; producing a reduced gas pressure relative to normal pressure in the chamber, thereby forming the low-pressure chamber; closing the low-pressure chamber; and removing a part of the substrate to form the holder.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 96.0
- Lexical Diversity: 2.42188
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15897946', '14220985', '15798836', '15804083', '16031722']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.893545233883715
- 35 USC 102 Novelty (BERT): 0.499703911270945
- Combined Prediction Score: 0.854161101622438
- Mean Citation Score: 189.427454
- Max Citation Score: 251.98752
- Similarity Product: 201.47200979759216

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