FIPMS175
Back-gated OFET Interdigitated Substrate
Au source/drain, 230 nm SiO2 gate-insulator, varied W/L from 500 to 4000, 16 transistors per chip, chips (diced)
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About This Item
UNSPSC Code:
43211915
form
chips (diced)
packaging
pack of 1 (wafer of 60 diced chips)
storage temp.
15-25°C
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General description
Substrate: 150 mm wafer according to semiconductor standard (used for bottom-gate)
Layer structure:
4 x transistors L= 2.5 μm W= 10 mm
4 x transistors L= 5 μm W= 10 mm
4 x transistors L= 10 μm W= 10 mm
4 x transistors L= 20 μm W= 10 mm
Layer structure:
- Gate: n-doped silicon (doping at wafer surface: n~3x1017/ cm3)
- Gate oxide: 230 nm ± 10 nm SiO2 (thermal oxidation)
- Drain/source: 30 nm Au with 10 nm high work function adhesion layer (ITO), by lift-off technique
- Protection: resist AR PC 5000/3.1 (soluble in AZ-Thinner or acetone)
- Layout: see images
- Test chip size: 15 x 15 mm2
- No. of chips: 60 per wafer
- Contact pads: 0.5 x 0.5 mm2
- No. of transistors: 16 per chip
4 x transistors L= 2.5 μm W= 10 mm
4 x transistors L= 5 μm W= 10 mm
4 x transistors L= 10 μm W= 10 mm
4 x transistors L= 20 μm W= 10 mm
Application
Back-gated OFET Interdigitated Substrate (organic field-effect transistor) can be used in the fabrication of chemical sensors for potential usage in pH sensing and detection of immunoassays. It can also be used in the fabrication of biosensors by coating the sheets of the FET with a specific antibody for the detection of SARS-CoV-2. FET based biosensors can be potentially used in clinical diagnosis, point of care testing, and on-site detection.
Packaging
diced wafer on foil with air tight packaging
Preparation Note
Recommendation for resist removal:
To guarantee a complete cleaning of the wafer / chip surface from resist residuals, please rinse by acetone and then dry the material immediately by nitrogen (compressed air).
Recommendation for material characterization:
If gate currents appear during the characterization of the field effect transistors, considerable variations could occur at the extraction of the carrier mobility. Therefore it is necessary to check the leakage currents over the reverse side (over the chip edges) of the OFET-substrates.
To guarantee a complete cleaning of the wafer / chip surface from resist residuals, please rinse by acetone and then dry the material immediately by nitrogen (compressed air).
Recommendation for material characterization:
If gate currents appear during the characterization of the field effect transistors, considerable variations could occur at the extraction of the carrier mobility. Therefore it is necessary to check the leakage currents over the reverse side (over the chip edges) of the OFET-substrates.
Storage and Stability
Store the wafers at a cool and dark place and protect them against sun.
Resist layer was applied to prevent damage from scratches.
Expiration date is the recommended period for resist removal only. After resist removal, the substrate remains functional and does not expire.
Resist layer was applied to prevent damage from scratches.
Expiration date is the recommended period for resist removal only. After resist removal, the substrate remains functional and does not expire.
Legal Information
Product of Fraunhofer IPMS
Regulatory Information
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Find documentation for the products that you have recently purchased in the Document Library.
Random CNT network and regioregular poly (3-hexylthiophen) FETs for pH sensing applications: A comparison
Munzer AM, et al.
Biochim. Biophys. Acta Gen. Subj., 1830(9), 4353-4358 (2013)
Rapid detection of COVID-19 causative virus (SARS-CoV-2) in human nasopharyngeal swab specimens using field-effect transistor-based biosensor
Seo G, et al.
ACS Nano, 14(4), 5135-5142 (2020)
Polymer composite-based OFET sensor with improved sensitivity towards nitro based explosive vapors
Dudhe RS, et al.
Sensors and Actuators B, Chemical, 148(1), 158-165 (2010)
The impact of biosensing in a pandemic outbreak: COVID-19
Morales-Narvaez E and Dincer C
Biosensors And Bioelectronics, 14(4), 112274-112274 (2020)
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