Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
192 words
A field effect transistor, comprising: (a) an insulator layer, the insulator layer being an electrical insulator, the insulator layer having a first side and a second side; (b) a gate, the gate being an electrical conductor, the gate being positioned adjacent the first side of the insulator layer; (c) a semiconductor layer, the semiconductor layer comprising a copolymer of at least one fluorene-based monomer and at least one other conjugated monomer containing up to 30 carbon atoms, which other monomer is not a fluorene, at least ten weight percent of the monomer units of the copolymer being selected from the group consisting of a 9-substituted fluorene unit and a 9,9-substituted fluorene unit, the semiconductor layer having a first side, a second side, a first end and a second end, the second side of the semiconductor layer being adjacent the second side of the insulator layer; (d) a source, the source being an electrical conductor, the source being in electrical contact with the first end of the semiconductor layer; and (e) a drain, the drain being an electrical conductor, the drain being in electrical contact with the second end of the semiconductor layer.
Claim 2
Dependent Claim
192 words
A field effect transistor, comprising: (a) an insulator layer, the insulator layer being an electrical insulator, the insulator layer having a first side and a second side; (b) a gate, the gate being an electrical conductor, the gate being positioned adjacent the first side of the insulator layer; (c) a semiconductor layer, the semiconductor layer comprising a copolymer of at least one fluorene-based monomer and at least one other conjugated monomer containing up to 30 carbon atoms, which other monomer is not a fluorene, at least ten weight percent of the monomer units of the copolymer being selected from the group consisting of a 9-substituted fluorene unit and a 9,9-substituted fluorene unit, the semiconductor layer having a first side, a second side, a first end and a second end, the second side of the semiconductor layer being adjacent the second side of the insulator layer; (d) a source, the source being an electrical conductor, the source being in electrical contact with the first end of the semiconductor layer; and (e) a drain, the drain being an electrical conductor, the drain being in electrical contact with the second end of the semiconductor layer.
Claim 3
Dependent Claim
15 words
The transistor of claim 1 , wherein the semiconductor layer consists essentially of the copolymer.
Claim 4
Dependent Claim
35 words
The transistor of claim 1 , wherein at least 20 weight percent of the monomer units of the copolymer are selected from the group consisting of a 9-substituted fluorene unit and a 9,9-substituted fluorene unit.
Claim 5
Dependent Claim
35 words
The transistor of claim 1 , wherein at least 30 weight percent of the monomer units of the copolymer are selected from the group consisting of a 9-substituted fluorene unit and a 9,9-substituted fluorene unit.
Claim 6
Dependent Claim
30 words
The transistor of claim 1 , wherein the semiconductor layer is in direct contact with the insulator layer and wherein the gate is in direct contact with the insulator layer.
Claim 7
Dependent Claim
39 words
The transistor of claim 1 wherein the other conjugated monomer is selected from the group consisting of aromatic amines, stilbenes, tolanes, C 6 -C 20 mononuclear or polynuclear aromatic hydrocarbons, and C 2 -C 10 mononuclear or polynuclear heterocycles.
Claim 8
Dependent Claim
12 words
The transistor of claim 1 wherein the other conjugated monomer is thiophene.
Claim 9
Dependent Claim
65 words
The transistor of claim 1 wherein the other monomer is selected from wherein R 3 is independently, in each occurrence, carboxyl, C 1 -C 20 alkyl, C 1 -C 20 alkoxy or a group of the formula —CO 2 R 4 , wherein R 4 is a C 1 -C 20 alkyl; and b is independently, in each occurrence, an integer from 0 to 3.
Claim 10
Dependent Claim
12 words
The transistor of claim 1 wherein the copolymer is an alternating copolymer.
Claim 11
Dependent Claim
10 words
The transistor of claim 1 wherein the copolymer is aligned.
Claim 12
Dependent Claim
20 words
The transistor of claim 1 wherein the copolymer has a carrier mobility of at least 1×10 4 cm 2 /volt-second.