New thick-film material for piezoresistive sensors

Tankiewicz, S.; Morten, Bruno; Prudenziati, M.; Gołonka, Leszek

doi:10.1016/s0924-4247(01)00754-3

Cited by 19 publications

(8 citation statements)

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“…Related investigations have indicated that polarization fatigue of ferroelectric Pb(Zr x Ti 1−x )O 3 (PZT) thin film capacitors can be effectively suppressed upon using IrO 2 thin film electrodes [24,25]. Tankiewicz and co-workers have also studied IrO 2 as the conductive phase in thick-film resistors for a piezoresistive sensor to improve the operation temperature up to 175 • C [26].…”

Section: Introductionmentioning

confidence: 99%

One-dimensional conductive IrO₂nanocrystals

et al. 2006

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We review the results of the synthesis of IrO 2 nanocrystals (NCs) on different substrates via metal-organic chemical vapour deposition (MOCVD) using (MeCp)(COD)Ir as the source reagent. The surface morphology, structural and spectroscopic properties of the as-deposited NCs were characterized using field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), selected-area electron diffractometry (SAD), x-ray diffractometry (XRD), x-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. The roles of different substrates for the formation of various textures of nanocrystalline IrO 2 are studied. Several one-dimensional (1D) nanostructures have evolved by decreasing the degree of interface instability. The morphological evolution occurs from triangular/wedged nanorods via incomplete/scrolled nanotubes to square nanotubes and square nanorods (NRs), with increasing morphological stability. The results show that the three-dimensional (3D) grains composing traditional film belong to the most stable form as compared to all the 1D NCs, and the sequential shape evolution has been found to be highly correlated to a morphological phase diagram based on the growth kinetics. In addition, area selective growth of IrO 2 NRs has been demonstrated on sapphire(012) and sapphire(100) substrates which consist of patterned SiO 2 as the nongrowth surface. The initial growth of IrO 2 nuclei is studied. Selectivity, rod orientation, and other morphological features of the nanorod forest can find their origins in the nucleation behaviour during initial growth. XPS analyses show the coexistence of higher oxidation states of iridium in the as-grown IrO 2 NCs. The usefulness of the experimental Raman scattering together with the modified spatial correlation (MSC) model analysis as a residual stress and structural characterization technique for 1D IrO 2 NCs has been demonstrated. The field emission properties of the vertically aligned IrO 2 NRs are studied and demonstrated as a high-performance and robust field emitter material owing to its low work function, low resistivity and excellent stability against oxygen.

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Section: Introductionmentioning

confidence: 99%

One-dimensional conductive IrO₂nanocrystals

et al. 2006

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“…At first, only the basic piezoresistive characteristics of thick resistive films were examined. Later on, new resistive sensing elements emerged based on novel thick-film inks designed for each specific application [14,15]. On the other hand, standard thick-film resistors are being continuously used in contemporary electronic equipment that requires high functional capability, improved reliability and environmental stability.…”

Section: Mechanically Strained Thick-film Resistive Structuresmentioning

confidence: 99%

Low‐Frequency Noise and Resistance as Reliability Indicators of Mechanically and Electrically Strained Thick‐Film Resistors

Stanimirovic¹

2017

System Reliability

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New contemporary applications of thick resistive films are inducing the need to investigate their behaviour under various stressing conditions. On the other hand, there is a growing interest in noise measurements as means of thick-film resistor quality and reliability evaluation and evaluation of degradation under stress. For these reasons, this chapter presents effects of mechanical, electrical and simultaneous mechanical and electrical straining on performances of conventional thick-film resistors that are analysed from micro-and macro-structural, charge transport and low-frequency noise aspects.

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“…149 Very low processing temperatures may be reached by glasses largely based on PbO-TeO 2 , 45 PbO-V 2 O 5 145,147,148 and especially SnO-SnF 2 -PbO-PbF 2 -P 2 O 5 . 153 Glass frits are often used in conjunction with other materials that act as fillers (Table 4): insulating powders for dielectrics/overglazes/encapsulation/ sealing glasses, 18,67,145,147,[149][150][151][152]154 conductive oxides for resistors, 61,62,[155][156][157] metal powders and adhesion promoters for conductors, 63,64,88,[158][159][160] pigments, etc. Even for applications such as sealing, encapsulation or TF overglazes, where they are not intrinsically required, fillers are often found necessary or advantageous in practice, mainly to adjust the coefficient of thermal expansion (CTE) of the deposited material to that of the substrate(s) (see Donald's review 20 for an extensive list of filler CTEs).…”

Section: Main Performance Criteriamentioning

confidence: 99%

Review of Bi₂O₃ based glasses for electronics and related applications

Maeder

2013

International Materials Reviews

155

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The present work critically reviews the scientific and patent literature on low melting bismuth based oxide glass frits in materials for electronics, sensors and related applications such as sealing glasses, solar cells, architectural and automotive glass, the main motivation being to replace lead based materials by environmentally more benign ones. Due to similar glass forming properties of Bi and Pb, Bi based glasses are the closest 'drop-in' alternative for lead bearing formulations, and are therefore actually replacing them in many applications, helped also by previous experience with Bi containing materials in thick film technology and component metallisations. The outstanding issues are discussed, e.g. matching the lowest processing temperatures achieved by the classical lead based glasses without sacrificing durability and stability, as well as stability versus chemical reduction. Finally, consideration is also given to special 'heavy' glasses (often containing Bi and Pb together) that are useful in fields such as optics, superconductors and nuclear technology, as well as to specific Bi 2 O 3 containing crystalline compounds.Keywords: Glasses, Bismuth, Bi 2 O 3 , Electronics, Optics, Thick film technology, Sensors Introduction Low melting glasses in electronics and other applicationsAs for ceramics, inorganic glasses, glass-ceramic and glaze materials have long gone beyond their traditional uses to address a wide array of modern technological challenges, Owing to performance and cost criteria, most standard glasses have relatively high softening points. However, there are many technological applications where a low softening temperature is required, in order to lower energy expenditure, avoid damaging devices in contact with the glass during processing or ensure compatibility with other materials:(i) hermetic sealing of packages, lamps, electrical feedthroughs and semiconductor devices 13,14,16,17,19,44,45 (ii) hermetic sealing and mechanical attachment of sensors 23,27 ( Fig. 1) (iii) encapsulation of semiconductor devices 29,30 (iv) overglazing of automotive, packaging and architectural glass 33,34,[46][47][48] (v) photovoltaic (PV) solar cell technology -conductors and contacts 42,43,[49][50][51][52][53] (vi) enamelling of aluminium in architecture and home appliances 35,[54][55][56][57][58] (vii) thick film (TF) electronics and other devices 21,22,24,25,27,59 (Fig. 1, the section on 'PbO in low melting frits and TF technology'); especially, special low firing compositions for fabrication of circuits and sensors on glass or metals. 1,28,[66][67][68][69][70][71][72] For these applications, glasses are often formulated as frits (e.g. finely divided powder), which may be applied, dispersed in a suitable medium, onto a substrate by various methods such as slip casting, screen printing, roller/curtain coating, spraying, dispensing and electrophoresis, or as preforms for sealing. Classically, the aforementioned applications have to a great extent used lead based glasses, which have a rather unique combinat...

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New thick-film material for piezoresistive sensors

Cited by 19 publications

References 9 publications

One-dimensional conductive IrO₂nanocrystals

One-dimensional conductive IrO₂nanocrystals

Low‐Frequency Noise and Resistance as Reliability Indicators of Mechanically and Electrically Strained Thick‐Film Resistors

Review of Bi₂O₃ based glasses for electronics and related applications

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New thick-film material for piezoresistive sensors

Cited by 19 publications

References 9 publications

One-dimensional conductive IrO2nanocrystals

One-dimensional conductive IrO2nanocrystals

Low‐Frequency Noise and Resistance as Reliability Indicators of Mechanically and Electrically Strained Thick‐Film Resistors

Review of Bi2O3 based glasses for electronics and related applications

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Product

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About

One-dimensional conductive IrO₂nanocrystals

One-dimensional conductive IrO₂nanocrystals

Review of Bi₂O₃ based glasses for electronics and related applications