Zobrazeno 1 - 10
of 139
pro vyhledávání: '"Seppo Leppävuori"'
Autor:
Seppo Leppävuori, Istvan Kirschner
Publikováno v:
Active and Passive Electronic Components, Vol 15, Iss 3-4, Pp i-i (1993)
Externí odkaz:
https://doaj.org/article/1da3538971934200956ae0bff177e12c
Autor:
Simo Eränen, Ismo Luusua, Iiro Hietanen, Mikko Juntunen, Seppo Leppävuori, Kimmo Henttinen, Fan Ji
Publikováno v:
Ji, F, Leppävuori, S, Luusua, I, Henttinen, K, Eränen, S, Hietanen, I & Juntunen, M 2008, ' Fabrication of silicon based through-wafer interconnects for advanced chip scale packaging ', Sensors and Actuators A: Physical, vol. 142, no. 1, pp. 405-412 . https://doi.org/10.1016/j.sna.2007.02.030
This paper presents a fabrication method to achieve through-wafer interconnects (TWIs) by etching, filling and grinding in sequence. Based on this method, advanced chip scale packaging (CSP) is performed. Compared to flip-chip technology, silicon bas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa9c4e2124379636b54dc057998b1069
https://doi.org/10.1016/j.sna.2007.02.030
https://doi.org/10.1016/j.sna.2007.02.030
Autor:
Arvi Kruusing, Seppo Leppävuori, Franck Ruffier, Stéphane Viollet, Marko Pudas, Stéphane Amic, Nicolas Franceschini
Publikováno v:
Sensors and Actuators A: Physical
Sensors and Actuators A: Physical, 2007, 133 (1), pp.88-95. ⟨10.1016/j.sna.2006.03.013⟩
Sensors and Actuators A: Physical, Elsevier, 2007, 133 (1), pp.88-95. ⟨10.1016/j.sna.2006.03.013⟩
Sensors and Actuators A: Physical, 2007, 133 (1), pp.88-95. ⟨10.1016/j.sna.2006.03.013⟩
Sensors and Actuators A: Physical, Elsevier, 2007, 133 (1), pp.88-95. ⟨10.1016/j.sna.2006.03.013⟩
International audience; Low temperature co-fired ceramics (LTCC) technology is classically used in the field of radio frequencies to make items such as miniature transceivers for handheld devices. Here we harness the LTCC technology to autonomous mic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a9e4f08d7a11f7142a6d56801e5ea54
https://doi.org/10.1016/j.sna.2006.03.013
https://doi.org/10.1016/j.sna.2006.03.013
Autor:
Laurent Pilon, Andrea Edit Pap, J. Vähäkangas, Sándor Szatmári, Antti Uusimäki, Seppo Leppävuori, Krisztian Kordas
Publikováno v:
Optical Materials. 28:506-513
In our previous study, the refractive indices of freestanding porous silicon (PS) layers were derived using the envelope method, where the computation is based on the values of local minima and maxima in the oscillations of transmission spectra. In t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::424bf60da25f7a7158df0491d98ce6a0
https://doi.org/10.1016/j.optmat.2005.02.006
https://doi.org/10.1016/j.optmat.2005.02.006
Publikováno v:
Journal of Electroceramics. 15:57-64
The poling procedure has always been the key issue in producing piezoelectric actuators with optimised performance. This is also true with the relatively new category of pre-stressed bender actuators, where mechanical bias achieved with a passive lay
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2e503497be71e7ec5789e25225d6e5e
https://doi.org/10.1007/s10832-005-1100-2
https://doi.org/10.1007/s10832-005-1100-2
Publikováno v:
Sensors and Actuators A: Physical. 120:225-231
This paper deals with large displacement actuators based on mechanically amplified movements of pre-stressed piezoelectric disks. The bridge-type amplifier structures were made of laser cut polymer laminates fold to certain geometries to accomplish e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ffafe8eb2396d682e69696780577132
https://doi.org/10.1016/j.sna.2004.11.016
https://doi.org/10.1016/j.sna.2004.11.016
Publikováno v:
Journal of the European Ceramic Society. 25:2467-2470
In this paper, the correspondence between ATILA-simulated and measured values of two piezoelectric ceramic structures, bulk and RAINBOW actuators, was determined. Modelling was started by creating a 2D wire model of the structures, after which a 3D m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7cbbb16826b78ebfb4e2457708595b1
https://doi.org/10.1016/j.jeurceramsoc.2005.03.083
https://doi.org/10.1016/j.jeurceramsoc.2005.03.083
Publikováno v:
Journal of the European Ceramic Society. 24:2943-2950
The gravure offset printing method was examined for the manufacture of thick-film conductors on alumina, using Ag based inks. In this research, a roller type gravure offset manufacturing process was developed to give conductor lines and spaces down t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d12c7750e3b611d79b3c3944821a18f
https://doi.org/10.1016/j.jeurceramsoc.2003.11.011
https://doi.org/10.1016/j.jeurceramsoc.2003.11.011
Publikováno v:
The Journal of Physical Chemistry B. 108:12744-12747
Porous silicon (PS) samples obtained by dark etching of p+-type silicon wafers are oxidized in dry air, at various temperatures from 200 °C up to 800 °C for 1−20 h durations, to determine the kinetics of the reaction. The extent of oxidation calc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee94a3afcd092932204999a2b4dcd456
https://doi.org/10.1021/jp049323y
https://doi.org/10.1021/jp049323y
Publikováno v:
Carbohydrate Polymers. 57:225-228
A modified synthesis of acrylated ethylcellulose was developed. Ethylcellulose reacts with acryloylchloride in anhydrous conditions producing ethylcellulose derivative with UV-reactive acrylate groups. FTIR spectroscopy was used to study the products
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7041d93ec2627c6344fa35f6e28e2f2b
https://doi.org/10.1016/j.carbpol.2004.04.014
https://doi.org/10.1016/j.carbpol.2004.04.014