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Research paper thumbnail of Mechanical analysis of encapsulated metal interconnects under transversal load

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Research paper thumbnail of A Reliable and comfortable package for wearable medical devices

Abstract Various approaches will make wearable medical systems comfortable for the user: circuit ... more Abstract Various approaches will make wearable medical systems comfortable for the user: circuit miniaturization is important, but this approach is ideally combined with flexible and/or stretchable integration, in order to obtain conformable, randomly deformable circuitry. ...

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Research paper thumbnail of Design and performance of metal conductors for stretchable electronic circuits

The authors would like to thank the European Commission for the financial support of the Project ... more The authors would like to thank the European Commission for the financial support of the Project STELLA, contract No. IST-028026 and the Flemish Community for the financial support of the Project BIOFLEX, contract No. SBO-040101. Special thanks to Philips Apptech for the ...

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Research paper thumbnail of Optical connections on flexible substrates

Proceedings of SPIE, Apr 21, 2006

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Research paper thumbnail of Fabrication of fixed-shape soft smart objects by thermoplastic forming of flat stretchable circuits

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Research paper thumbnail of PCB technology based stretchable circuits

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Research paper thumbnail of Lifetime of stretchable meander-shaped copper conductors in PDMS subjected to cyclic elongation

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Research paper thumbnail of Stretchable conductor technology for elastic electronic systems

... Dominique Brosteaux [801001964309] - Ghent University Dominique.Brosteaux@UGent. be; M Gonzal... more ... Dominique Brosteaux [801001964309] - Ghent University Dominique.Brosteaux@UGent. be; M Gonzalez; T Loeher; D Manessis; R Heinrich; B Schmied; A Ostmann; Jan Vanfleteren [801000674512] - Ghent University Jan.Vanfleteren@UGent.be. ...

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Research paper thumbnail of Stretchable passive matrix LED display with thin-film based interconnects

Display Week 2016, 2016

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Research paper thumbnail of Plastic electronics based conformable electronic circuits

2012 4th Electronic System-Integration Technology Conference, 2012

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Research paper thumbnail of Stretchable Electronic Platform for Soft and Smart Contact Lens Applications

Advanced Materials Technologies, 2017

A stretchable platform with spherical‐shaped electronics based on thermoplastic polyurethane (TPU... more A stretchable platform with spherical‐shaped electronics based on thermoplastic polyurethane (TPU) is introduced for soft smart contact lenses. The low glass transition temperature of TPU, its relatively low hardness, and its proven biocompatibility (i.e., protection of exterior body wounds) fulfill the essential requirements for eye wearable devices. These requirements include optical transparency, conformal fitting, and flexibility comparable with soft contact lenses (e.g., hydrogel‐based). Moreover, the viscoelastic nature of TPU allows planar structures to be thermoformed into spherical caps with a well‐defined curvature (i.e., eye's curvature at the cornea: 9 mm). Numerical modeling and experimental validation enable fine‐tuning of the thermoforming parameters and the optimization of strain‐release patterns. Such tight control is proven necessary to achieve oxygen permeable, thin, nondevelopable, and wrinkle‐free contact lenses with integrated electronics (silicon die, radi...

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Research paper thumbnail of One-time deformable thermoplastic devices based on flexible circuit board technology

2016 11th International Microsystems, Packaging, Assembly and Circuits Technology Conference (IMPACT), 2016

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Research paper thumbnail of 49-2:Invited Paper: Stretchable Passive Matrix LED Display with Thin-Film Based Interconnects

SID Symposium Digest of Technical Papers, 2016

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Research paper thumbnail of Free-form 2.5D thermoplastic circuits using one-time stretchable interconnections

MRS Proceedings, 2015

ABSTRACTA technology is presented for the production of soft and rigid circuits with an arbitrary... more ABSTRACTA technology is presented for the production of soft and rigid circuits with an arbitrary 2.5D fixed shape. The base of this technology is our proprietary technology for elastic circuits with a random shape, in which the elastic thermoset (mostly PDMS) polymer is now replaced by soft or rigid thermoplastic variants. An additional thermoforming step is required to transform the circuit from its initial flat to its final fixed 2.5D shape, but for rigid fixed shape circuits only one-time stretchability of the extensible interconnects is required, relieving the reliability requirements.

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Research paper thumbnail of CdSe thin film transistors for the addressing of liquid crystal displays

The paper reviews the different CdSe TFT technologies of the RUGent Laboratory of Electronics. Al... more The paper reviews the different CdSe TFT technologies of the RUGent Laboratory of Electronics. All the technologies used sandwiched and doped semiconductors, self-aligned gate with respect to source-drain, standard vacuum and lithography equipment; this makes them rather simple and relatively cheap technologies. TFTs for a variety of applications are fabricated.

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Research paper thumbnail of One-time deformable electronics

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Research paper thumbnail of Parylene C for hermetic and flexible encapsulation of interconnects and electronic components

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Research paper thumbnail of Modelling Poly-CdSe TFTs for AMLCD

A model for the poly-CdSe TFT is proposed, based on recent understandings of the behaviour of pol... more A model for the poly-CdSe TFT is proposed, based on recent understandings of the behaviour of polycrystalline semiconductors. The importance of adsorbed oxygen in CdSe films and the role of donor metals is highlighted. The model also explains the formation of metal ohmic contacts on CdSe by low temperature annealing.

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Research paper thumbnail of Silicon oxynitride layers for device passivation

The process optimization of PCVD silicon oxynitride (SiON) dielectric layers is described. The of... more The process optimization of PCVD silicon oxynitride (SiON) dielectric layers is described. The often large mechanical stress in such films is a drawback for large area applications. By using Taguchi's methodology for the process optimization, a 4 mum thick, pinhole-free SiON layer could be deposited, with practically no mechanical stress.

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Research paper thumbnail of Analysis of Transient Photoconductivity in Cdsecucl Thin-Films

Physica Status Solidi a-Applied Research, 1994

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Research paper thumbnail of Mechanical analysis of encapsulated metal interconnects under transversal load

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Research paper thumbnail of A Reliable and comfortable package for wearable medical devices

Abstract Various approaches will make wearable medical systems comfortable for the user: circuit ... more Abstract Various approaches will make wearable medical systems comfortable for the user: circuit miniaturization is important, but this approach is ideally combined with flexible and/or stretchable integration, in order to obtain conformable, randomly deformable circuitry. ...

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Research paper thumbnail of Design and performance of metal conductors for stretchable electronic circuits

The authors would like to thank the European Commission for the financial support of the Project ... more The authors would like to thank the European Commission for the financial support of the Project STELLA, contract No. IST-028026 and the Flemish Community for the financial support of the Project BIOFLEX, contract No. SBO-040101. Special thanks to Philips Apptech for the ...

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Research paper thumbnail of Optical connections on flexible substrates

Proceedings of SPIE, Apr 21, 2006

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Research paper thumbnail of Fabrication of fixed-shape soft smart objects by thermoplastic forming of flat stretchable circuits

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Research paper thumbnail of PCB technology based stretchable circuits

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Research paper thumbnail of Lifetime of stretchable meander-shaped copper conductors in PDMS subjected to cyclic elongation

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Research paper thumbnail of Stretchable conductor technology for elastic electronic systems

... Dominique Brosteaux [801001964309] - Ghent University Dominique.Brosteaux@UGent. be; M Gonzal... more ... Dominique Brosteaux [801001964309] - Ghent University Dominique.Brosteaux@UGent. be; M Gonzalez; T Loeher; D Manessis; R Heinrich; B Schmied; A Ostmann; Jan Vanfleteren [801000674512] - Ghent University Jan.Vanfleteren@UGent.be. ...

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Research paper thumbnail of Stretchable passive matrix LED display with thin-film based interconnects

Display Week 2016, 2016

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Research paper thumbnail of Plastic electronics based conformable electronic circuits

2012 4th Electronic System-Integration Technology Conference, 2012

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Research paper thumbnail of Stretchable Electronic Platform for Soft and Smart Contact Lens Applications

Advanced Materials Technologies, 2017

A stretchable platform with spherical‐shaped electronics based on thermoplastic polyurethane (TPU... more A stretchable platform with spherical‐shaped electronics based on thermoplastic polyurethane (TPU) is introduced for soft smart contact lenses. The low glass transition temperature of TPU, its relatively low hardness, and its proven biocompatibility (i.e., protection of exterior body wounds) fulfill the essential requirements for eye wearable devices. These requirements include optical transparency, conformal fitting, and flexibility comparable with soft contact lenses (e.g., hydrogel‐based). Moreover, the viscoelastic nature of TPU allows planar structures to be thermoformed into spherical caps with a well‐defined curvature (i.e., eye's curvature at the cornea: 9 mm). Numerical modeling and experimental validation enable fine‐tuning of the thermoforming parameters and the optimization of strain‐release patterns. Such tight control is proven necessary to achieve oxygen permeable, thin, nondevelopable, and wrinkle‐free contact lenses with integrated electronics (silicon die, radi...

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Research paper thumbnail of One-time deformable thermoplastic devices based on flexible circuit board technology

2016 11th International Microsystems, Packaging, Assembly and Circuits Technology Conference (IMPACT), 2016

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Research paper thumbnail of 49-2:Invited Paper: Stretchable Passive Matrix LED Display with Thin-Film Based Interconnects

SID Symposium Digest of Technical Papers, 2016

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Research paper thumbnail of Free-form 2.5D thermoplastic circuits using one-time stretchable interconnections

MRS Proceedings, 2015

ABSTRACTA technology is presented for the production of soft and rigid circuits with an arbitrary... more ABSTRACTA technology is presented for the production of soft and rigid circuits with an arbitrary 2.5D fixed shape. The base of this technology is our proprietary technology for elastic circuits with a random shape, in which the elastic thermoset (mostly PDMS) polymer is now replaced by soft or rigid thermoplastic variants. An additional thermoforming step is required to transform the circuit from its initial flat to its final fixed 2.5D shape, but for rigid fixed shape circuits only one-time stretchability of the extensible interconnects is required, relieving the reliability requirements.

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Research paper thumbnail of CdSe thin film transistors for the addressing of liquid crystal displays

The paper reviews the different CdSe TFT technologies of the RUGent Laboratory of Electronics. Al... more The paper reviews the different CdSe TFT technologies of the RUGent Laboratory of Electronics. All the technologies used sandwiched and doped semiconductors, self-aligned gate with respect to source-drain, standard vacuum and lithography equipment; this makes them rather simple and relatively cheap technologies. TFTs for a variety of applications are fabricated.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of One-time deformable electronics

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Research paper thumbnail of Parylene C for hermetic and flexible encapsulation of interconnects and electronic components

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Modelling Poly-CdSe TFTs for AMLCD

A model for the poly-CdSe TFT is proposed, based on recent understandings of the behaviour of pol... more A model for the poly-CdSe TFT is proposed, based on recent understandings of the behaviour of polycrystalline semiconductors. The importance of adsorbed oxygen in CdSe films and the role of donor metals is highlighted. The model also explains the formation of metal ohmic contacts on CdSe by low temperature annealing.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Silicon oxynitride layers for device passivation

The process optimization of PCVD silicon oxynitride (SiON) dielectric layers is described. The of... more The process optimization of PCVD silicon oxynitride (SiON) dielectric layers is described. The often large mechanical stress in such films is a drawback for large area applications. By using Taguchi's methodology for the process optimization, a 4 mum thick, pinhole-free SiON layer could be deposited, with practically no mechanical stress.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Analysis of Transient Photoconductivity in Cdsecucl Thin-Films

Physica Status Solidi a-Applied Research, 1994

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