A new technology for fluidic microsystems based on PCB technology

Merkel, Tobias; Graeber, Michael; Pagel, Lienhard

doi:10.1016/s0924-4247(99)00062-x

Cited by 109 publications

(63 citation statements)

References 9 publications

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“…An alternative approach to microfluidic diagnostics is based on the use of a mixed circuit board (MCB) demonstrated by Lammerink et al [15] and first developed by Merkel et al [16]. This uses printed circuit board (PCB) manufacturing technology for microfluidic systems, incorporating copper traces, electronic assemblies, functional microfluidic components and sensing electrodes in a fully integrated Lab-on-Chip (LoC), i.e.…”

Section: Page 2 Ofmentioning

confidence: 99%

Long-lasting FR-4 surface hydrophilisation towards commercial PCB passive microfluidics

Vasilakis

Moschou

Carta

et al. 2016

Applied Surface Science

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Highlights oxygen plasma treatment on FR-4 laminates  effect of power and exposure time studied to achieve long-lasting hydrophilic properties  super-hydrophilic surface for 13 days demonstrated  surface remains weakly hydrophilic between 13 th and 26 th day after the treatment  hydrophilic behaviour is retained for 26 days in total  oxygen plasma treatment was used on a commercially manufactured PCB microfluidic chip to enable passive filling of a microfluidic network AbstractPrinted circuit boards (PCB) technologies are an attractive system for simple sensing and microfluidic systems. Controlling the surface properties of PCB material is an important part of this technology and to date there has been no study on long-term hydrophilisation stability of these materials. In this work, the effect of different oxygen plasma input power and treatment duration times on the wetting properties of FR-4 surfaces was investigated by sessile droplet contact angle measurements. Super and weakly hydrophilic behaviour was achieved and the retention time of these properties was studied, with the hydrophilic nature being retained for at least 26 days. To demonstrate the applicability of this treatment method, a commercially manufactured microfluidic structure made from a multilayer PCB (3-layer FR-4 stack) was exposed to oxygen plasma at the optimum conditions. The structures could be filled with deionised (DI) water under capillary flow unlike the virgin devices.

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Section: Page 2 Ofmentioning

confidence: 99%

Long-lasting FR-4 surface hydrophilisation towards commercial PCB passive microfluidics

Vasilakis

Moschou

Carta

et al. 2016

Applied Surface Science

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“…In the last few years printed circuit board (PCB) technology has greatly improved, achieving the photolithographic resolutions of silicon planar technology in the earlier 1970s, thus allowing the design of low cost precision transducers [7,8]. Materials such as polyimides and polyesters are now available in thin films of tens of m, allowing PCB devices to be used other than connecting electronic components but also as means for mechanical transduction.…”

Section: Aims and Sensor Structurementioning

confidence: 99%

A non-invasive capacitive sensor strip for aerodynamic pressure measurement

Zagnoni

Golfarelli

Callegari

et al. 2005

Sensors and Actuators A: Physical

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This paper presents a capacitive pressure sensor strip implemented in general purpose printed circuit board (PCB) technology based on a thin 3D structure composed of polyimide, woven glass reinforced epoxy resin (FR4) and metal layers. Multiphysics finite elements method (FEM) simulations have been performed over the proposed structure in order to develop a time-dependent electrical and mechanical model that can be easily used to tailor the characteristics to the application. The device targets a wide class of fluid dynamics applications, being non-invasive, comformable and smart for placement. The device simulations are herein validated by experimental wind tunnel measurements and compared with figures obtained on a wing profile by conventional electromechanical pressure transducers. This approach is one of the first example of fully embedding and electronically controlled fluid flow monitoring apparatus that could be used in replacement of state of the art mechanical systems.

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“…However, due to high costs of the materials and technological equipment used for silicon micromachining, new materials and technologies suitable for microfluidics were sought. Nowadays polymer [4,5], PCB (printed circuit board) [6,7] and LTCC (low temperature co-fired ceramics) [8][9][10] technologies are used for fabrication of microfluidic structures.…”

Section: Introductionmentioning

confidence: 99%

Integration of Optoelectronic Components with LTCC (Low Temperature Co-Fired Ceramic) Microfluidic Structure

Malecha¹

2011

Metrology and Measurement Systems

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Investigations on integration of optoelectronic components with LTCC (low temperature co-fired ceramics) microfluidic module are presented. Design, fabrication and characterization of the ceramic structure for optical absorbance is described as well. The geometry of the microfluidic channels has been designed according to results of the CFD (computational fluid dynamics) analysis. A fabricated LTCC-based microfluidic module consists of an U-shaped microchannel, two optical fibers and integrated light source (light emitting diode) and photodetector (light-to-voltage converter). Properties of the fabricated microfluidic system have been investigated experimentally. Several concentrations of potassium permanganate (KMnO 4 ) in water were used for absorbance/transmittance measurements. The test has shown a linear detection range for various concentrations of heavy metal ions in distilled water. The fabricated microfluidic structure is found to be a very useful system in chemical analysis.

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A new technology for fluidic microsystems based on PCB technology

Cited by 109 publications

References 9 publications

Long-lasting FR-4 surface hydrophilisation towards commercial PCB passive microfluidics

Long-lasting FR-4 surface hydrophilisation towards commercial PCB passive microfluidics

A non-invasive capacitive sensor strip for aerodynamic pressure measurement

Integration of Optoelectronic Components with LTCC (Low Temperature Co-Fired Ceramic) Microfluidic Structure

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