PATENT CLAIM ANALYSIS

Application Number: 15962904
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["381", "174000"]

Abstract:
A microphone and its manufacturing method, relating to semiconductor techniques. The microphone comprises a substrate with a back through-hole going through the substrate; a first electrode layer on the substrate covering the back through-hole; a back plate on the substrate, wherein the back plate and the first electrode layer form a cavity, and the first electrode layer comprises a gap connecting the back through-hole and the cavity; and a second electrode layer in the cavity and on a bottom surface of the back plate. In this inventive concept, the gap in the first electrode layer increases the sensitivity of the first electrode layer and thus improves the Signal-to-Noise Ratio (SNR).

Claim (Index 12):
A microphone manufacturing method, comprising:\n providing a semiconductor structure comprising a substrate, a first sacrificial layer on the substrate, and a patterned first electrode layer on the first sacrificial layer, wherein the first electrode layer has a gap exposing a portion of the first sacrificial layer; forming a second sacrificial layer on the first electrode layer; forming a patterned second electrode layer on the second sacrificial layer; forming a back plate on the substrate covering the second sacrificial layer and the second electrode layer; forming a back through-hole in the substrate by etching a back side of the substrate, with the back through-hole exposing a portion of a bottom surface of the first sacrificial layer; and forming a cavity by removing a portion of the first sacrificial layer and the second sacrificial layer, with the gap connecting the back through-hole and the cavity.

Metadata:
- Claim Count in Document: 44.0
- Percentile: 91.0
- Lexical Diversity: 2.34615
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15934096', '15497374', '15818561', '15364728', '15497366']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7040050415127523
- 35 USC 102 Novelty (BERT): 0.4871304242812854
- Combined Prediction Score: 0.6823175797896057
- Mean Citation Score: 229.762408
- Max Citation Score: 243.15244
- Similarity Product: 198.2294564968253

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