Jaakko Leppäniemi

D.Sc. (Tech.), Senior Scientist

20082019
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Research Output 2008 2019

  • 17 Article
  • 6 Conference article in proceedings
  • 1 Conference article
  • 1 Dissertation
2019

0.6V threshold voltage thin film transistors with solution processable indium oxide (In2O3) Channel and Anodized High-κ Al2O3 Dielectric

Bhalerao, S. R., Lupo, D., Zangiabadi, A., Kymissis, I., Leppaniemi, J., Alastalo, A. & Berger, P. R., 22 May 2019, In : IEEE Electron Device Letters. 40, 7, p. 1112-1115 4 p., 8720175.

Research output: Contribution to journalArticleScientificpeer-review

Thin film transistors
Threshold voltage
Indium
Oxides
Transistors
1 Citation (Scopus)

Reverse-Offset Printing of Metal-Nitrate-Based Metal Oxide Semiconductor Ink for Flexible TFTs

Leppäniemi, J., Sneck, A., Kusaka, Y., Fukuda, N. & Alastalo, A., 2019, In : Advanced Electronic Materials. 5, 8, 1900272.

Research output: Contribution to journalArticleScientificpeer-review

Offset printing
Thin film transistors
Ink
Nitrates
Metals
2018
6 Citations (Scopus)

High performance solution processed oxide thin-film transistors with inkjet printed Ag source-drain electrodes

Gillan, L., Leppäniemi, J., Eiroma, K., Majumdar, H. & Alastalo, A., 1 Jan 2018, In : Journal of Materials Chemistry C. 6, 13, p. 3220-3225 6 p.

Research output: Contribution to journalArticleScientificpeer-review

Polyethyleneimine
Thin film transistors
Contact resistance
Oxides
Oxide films
6 Citations (Scopus)

Reverse Offset Printing of Semidried Metal Acetylacetonate Layers and Its Application to a Solution-Processed IGZO TFT Fabrication

Kusaka, Y., Shirakawa, N., Ogura, S., Leppäniemi, J., Sneck, A., Alastalo, A., Ushijima, H. & Fukuda, N., 25 Jul 2018, In : ACS Applied Materials & Interfaces. 10, 29, p. 24339-24343 5 p.

Research output: Contribution to journalArticleScientificpeer-review

Offset printing
Ink
Metals
Plasmas
Fabrication
2017
25 Citations (Scopus)

Far-UV Annealed Inkjet-Printed In2O3 Semiconductor Layers for Thin-Film Transistors on a Flexible Polyethylene Naphthalate Substrate

Leppäniemi, J., Eiroma, K., Majumdar, H. & Alastalo, A., 15 Mar 2017, In : ACS Applied Materials & Interfaces. 9, 10, p. 8774-8782 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Polyethylene
Thin film transistors
Polyethylenes
Semiconductor materials
Oxides
Open Access
printing
indium oxides
theses
transistors
metal oxide semiconductors
2016
6 Citations (Scopus)

In2O3 thin-film transistors via inkjet printing for depletion-load nMOS inverters

Leppäniemi, J., Eiroma, K., Majumdar, H. S. & Alastalo, A. T., 2016, In : IEEE Electron Device Letters. 37, 4, p. 445-448

Research output: Contribution to journalArticleScientificpeer-review

Thin film transistors
Printing
Metals
Substrates
Threshold voltage
2015
59 Citations (Scopus)
Open Access
Thin film transistors
Semiconductor materials
Plastics
Atomic layer deposition
Gate dielectrics
5 Citations (Scopus)

Gravure printed sol-gel derived AlOOH hybrid nanocomposite thin films for printed electronics

Kololuoma, T., Leppäniemi, J., Majumdar, H., Branquinho, R., Hervei-Valcu, E., Musat, V., Martins, R., Fortunato, E. & Alastalo, A., 2015, In : Journal of Materials Chemistry C. 3, 8, p. 1776-1786

Research output: Contribution to journalArticleScientificpeer-review

Nanocomposite films
Sol-gels
Electronic equipment
Leakage currents
Permittivity
2014

Combined far ultraviolet and thermal annealing of metal nitrate precursors for solution processed IZO TFTs

Leppäniemi, J., Ojanperä, K., Majumdar, H., Kololuoma, T. & Alastalo, A., 2014.

Research output: Contribution to conferenceConference articleScientific

Effect of UV light and low temperature on solution-processed, high-performance metal-oxide semiconductors and TFTs

Majumdar, H., Leppäniemi, J., Ojanperä, K., Huttunen, O-H. & Alastalo, A., 2014, Proceedings of the 5th Electronics System-Integration Technology Conference, ESTC 2014. Institute of Electrical and Electronic Engineers IEEE

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

metal oxide semiconductors
ultraviolet radiation
transistors
thin films
temperature

Printed low-voltage programmable write-once-read-many-memories

Leppäniemi, J., Fukuda, N., Alastalo, A., Mattila, T., Eiroma, K. & Kololuoma, T., 2014, Proceedings of the 5th Electronics System-Integration Technology Conference, ESTC 2014. Institute of Electrical and Electronic Engineers IEEE

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Electric fuses
Data storage equipment
Electric potential
Offset printing
Linewidth
26 Citations (Scopus)

Rapid low-temperature processing of metal-oxide thin film transistors with combined far ultraviolet and thermal annealing

Leppäniemi, J., Ojanperä, K., Kololuoma, T., Huttunen, O-H., Dahl, J., Tuominen, M., Laukkanen, P., Majumdar, H. & Alastalo, A., 2014, In : Applied Physics Letters. 105, 11, 113514.

Research output: Contribution to journalArticleScientificpeer-review

metal oxides
transistors
indium oxides
annealing
thin films
17 Citations (Scopus)

Sintering of inkjet printed silver tracks with boiling salt water

Olkkonen, J., Leppäniemi, J., Mattila, T. & Eiroma, K., 2014, In : Journal of Materials Chemistry C. 2, 18, p. 3577-3582 5 p.

Research output: Contribution to journalArticleScientificpeer-review

Saline water
Silver
Boiling liquids
Sintering
Substrates
2012
18 Citations (Scopus)

Roll-to-roll printed resistive WORM memory on a flexible substrate

Leppäniemi, J., Mattila, T., Kololuoma, T., Suhonen, M. & Alastalo, A., 2012, In : Nanotechnology. 23, 30

Research output: Contribution to journalArticleScientificpeer-review

Data storage equipment
Substrates
Silver
Ink
Nanoparticles
2 Citations (Scopus)

Water-based carbon-coated copper nanoparticle fluid: Formation of conductive layers at low temperature by spin coating and inkjet deposition

Eiroma, K., Forsman, J., Hult, E-L., Auvinen, A., Sipiläinen-Malm, T., Alastalo, A., Tapper, U., Leppäniemi, J., Mattila, P., Lyyränen, J., Sarlin, J., Jokiniemi, J. & Mössmer, S., 2012, In : Journal of Imaging Science and Technology. 56, 4, 10 p.

Research output: Contribution to journalArticleScientificpeer-review

Spin coating
coating
Copper
Carbon
copper chlorides
2011
48 Citations (Scopus)

Contactless electrical sintering of silver nanoparticles on flexible substrates

Allen, M., Alastalo, A., Suhonen, M., Mattila, T., Leppäniemi, J. & Seppä, H., 2011, In : IEEE Transactions on Microwave Theory and Techniques. 59, 5, p. 1419-1429 11 p.

Research output: Contribution to journalArticleScientificpeer-review

sintering
Silver
Sintering
silver
Nanoparticles
7 Citations (Scopus)

Contactless read-out of printed memory

Allen, M., Aronniemi, M., Mattila, T., Helistö, P., Sipola, H., Rautiainen, A., Leppäniemi, J., Alastalo, A., Korhonen, R. & Seppä, H., 2011, In : Microelectronic Engineering. 88, 9, p. 2941-2945 5 p.

Research output: Contribution to journalArticleScientificpeer-review

Data storage equipment
low resistance
fuses
printed circuits
high resistance
25 Citations (Scopus)

Printed WORM memory on a flexible substrate based on rapid electrical sintering of nanoparticles

Leppäniemi, J., Aronniemi, M., Mattila, T., Alastalo, A., Allen, M. & Seppä, H., 2011, In : IEEE Transactions on Electron Devices. 58, 1, p. 151-159 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Sintering
Nanoparticles
Data storage equipment
Substrates
Silver
2010

Electrical Sintering of Conductor Grids for Optoelectronic Devices

Allen, M., Suhonen, M., Leppäniemi, J., Alastalo, A., Mattila, T., Kemppainen, A. & Seppä, H., 2010, Proceedings of LOPE-C 2010.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Optoelectronic devices
Sintering
Printing
Substrates
Ovens

Low-temperature solution-processed ZnO transistors

Ojanperä, K., Raappana, J., Alastalo, A., Leppäniemi, J., Kololuoma, T., Mattila, T., Munter, T. & Tappura, K., 2010, International Conference and Exhibition for the Organic and Printed Electronics Industry, 2010. p. 206-208

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

transistors
casts
threshold voltage
capacitors
depletion
8 Citations (Scopus)

Modelling of nanoparticle sintering under electrical boundary conditions

Alastalo, A. T., Seppä, H., Leppäniemi, J. H., Aronniemi, M. J., Allen, M. L. & Mattila, T., 2010, In : Journal of Physics D: Applied Physics. 43, 48, 485501.

Research output: Contribution to journalArticleScientificpeer-review

sintering
Sintering
Boundary conditions
boundary conditions
Nanoparticles

Printable WORM and FRAM memories and their applications

Alastalo, A., Mattila, T., Leppäniemi, J., Suhonen, M., Kololuoma, T., Schaller, A., Andersson, H., Manuilskiy, A., Gao, J., Nilsson, H-E., Rusu, A., Ayöz, S., Stolichnov, I., Siitonen, S., Gulliksson, M., Sidén, J., Lehnert, T., Adam, J., Veith, M., Merkulov, A. & 4 others, Damaschek, Y., Steiger, J., Cederberg, M. & Konecny, M., 2010, Proceedings of LOPE-C 2010: International Conference and Exhibition for the Organic and Printed Electronics Industry, LOPE-C, Large-Area, Organic & Printed Electronics Convention. p. 8-12

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Ferroelectric materials
Data storage equipment
Silver
Sintering
Nanoparticles
35 Citations (Scopus)

Substrate-facilitated nanoparticle sintering and component interconnection procedure

Allen, M., Leppäniemi, J., Vilkman, M., Alastalo, A. & Mattila, T., 2010, In : Nanotechnology. 21, 47

Research output: Contribution to journalArticleScientificpeer-review

Silver
Sintering
Nanoparticles
Printing
Substrates
2008
11 Citations (Scopus)

Rapid electrical sintering of nanoparticle stuctures

Alastalo, A. T., Mattila, T., Allen, M. L., Aronniemi, M. J., Leppäniemi, J. H., Ojanperä, K. A., Suhonen, M. P. & Seppä, H., 2008, Materials Research Society Symposium Proceedings. Vol. 1113. p. F02-07 6 p. (Materials Research Society Symposia Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

sintering
nanoparticles
conductors
silver
conductivity