PATENT CLAIM ANALYSIS

Application Number: 15743923
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["257", "253000"]

Abstract:
The present invention concerns an ion sensor based on differential measurement, that by means of at least two ion-sensitive field-effect transistors, compares the concentration of certain ions in a solution to be measured with the concentration of certain ions in a reference solution contained in a micro-reservoir with a micro-channel. To do this, the micro-reservoir and the micro-channel cover at least the gate of one of the ion-sensitive field-effect transistors and make up a unit partially filled with a porous material that covers the entirety of the aforementioned gate and at least the base of the micro-channel.

Claim (Index 1):
Ion sensor ( 1 ) based on differential measurement comprising:\n a substrate ( 2 ) with at least one connecting track ( 3 ,  3 \u2032); one electrode ( 4 ) linked to the substrate ( 2 ); a first ion-sensitive field-effect transistor ISFET ( 5 ) with one gate ( 6 ), integrated in a first chip inserted in the substrate ( 2 ) and linked to at least one connecting track ( 3 ); at least a second ion-sensitive field-effect transistor ISFET ( 5 \u2032) with one gate ( 6 \u2032), integrated in a second chip inserted in the substrate ( 2 ) and linked to at least one connecting track ( 3 \u2032); a structure adhered on the first ion-sensitive field-effect transistor ISFET ( 5 ) configured to create a micro-reservoir ( 8 ) on the gate ( 6 ) of the first ISFET transistor ( 5 ); at least a first micro-channel ( 9 ) connecting the micro-reservoir ( 8 ) with the outside; and an encapsulating material ( 15 ,  15 \u2032) to isolate completely the connecting tracks ( 3 ,  3 \u2032) and partially the first and the second ion-sensitive field-effect transistors ISFET ( 5 ,  5 \u2032), characterized in that the micro-reservoir ( 8 ) and the first micro-channel ( 9 ) make up a unit totally or partially filled with a porous material ( 11 ), forming a single body which covers entirely the gate ( 6 ) of the first ISFET transistor ( 5 ) and at least the base of the first micro-channel ( 9 ), with the capacity of absorbing a reference solution ( 12 ) from the first micro-channel ( 9 ) to the gate ( 6 ) of the first ISFET transistor ( 5 ), expelling or compressing the air ( 14 ) inside the unit.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 86.0
- Lexical Diversity: 1.78947
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15113381', '10825123', '13797865', '13616454', '13616404']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9030281741329562
- 35 USC 102 Novelty (BERT): 0.4782354364032378
- Combined Prediction Score: 0.8605489003599844
- Mean Citation Score: 170.20490800000005
- Max Citation Score: 212.75664
- Similarity Product: 173.21380965946202

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