Novel printing process for the fabrication of cantilever structures by the partially controlled sintering of ink

Kanazawa, Shusuke; Kusaka, Yasuyuki; Yamamoto, Naokatsu; Ushijima, Hirobumi

doi:10.7567/jjap.56.010313

Cited by 12 publications

(10 citation statements)

References 33 publications

(33 reference statements)

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“…This absorption increases the ink’s viscosity on the blanket, preventing blurring and enabling the production of fine printing patterns. Such high-viscosity conductive inks can function as a physically floating cantilever and bridge without any cracks during the transfer processes [ 32 , 33 ]. Thus, screen-offset printing can easily form conductive patterns on a highly porous textile-based material by bridging the pores in the material to print conductive patterns less than 1 mm wide.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of a Textile-Based Wearable Blood Leakage Sensor Using Screen-Offset Printing

Nomura

Horii

Kanazawa

et al. 2018

Sensors

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We fabricate a wearable blood leakage sensor on a cotton textile by combining two newly developed techniques. First, we employ a screen-offset printing technique that avoids blurring, short circuiting between adjacent conductive patterns, and electrode fracturing to form an interdigitated electrode structure for the sensor on a textile. Furthermore, we develop a scheme to distinguish blood from other substances by utilizing the specific dielectric dispersion of blood observed in the sub-megahertz frequency range. The sensor can detect blood volumes as low as 15 μL, which is significantly lower than those of commercially available products (which can detect approximately 1 mL of blood) and comparable to a recently reported value of approximately 10 μL. In this study, we merge two technologies to develop a more practical skin-friendly sensor that can be applied for safe, stress-free blood leakage monitoring during hemodialysis.

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Section: Introductionmentioning

confidence: 99%

Fabrication of a Textile-Based Wearable Blood Leakage Sensor Using Screen-Offset Printing

Nomura

Horii

Kanazawa

et al. 2018

Sensors

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“…The industrialization of such large-area sensors requires an improved manufacturing process that can efficiently process the large areas. Thus, printing technology was developed to create functional layers in the atmosphere without the use of photoresists and the etching process [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Development of a Strain Sensor Matrix on Mobilized Flexible Substrate for the Imaging of Wind Pressure Distribution

Kanazawa

Ushijima

2020

Micromachines

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This paper presents a novel flexible sensor for monitoring wind pressure distribution. Based on the concept of “flexible mechatronics”, a suspended structure was incorporated into the matrix of a resistive-strain sensor in a plastic film to make the sensor mechanically movable against the wind. Screen printing and laser cutting were confirmed to be satisfactory methods for fabricating the proposed device structure. As a result, the visualization of wind pressure was successfully demonstrated by the fabricated sensor sheet and an imaging-display-creation software. The results of this study show that a mechanically functionalized substrate opens up new avenues for flexible electronics.

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“…The increase in production of sensors makes it necessary to develop a novel method for obtaining hollowed structures in a simpler way. We have developed a printing-based method for fabrication of cantilevers without the use of a sacrificial layer [13] [14]. In a previous study, an Ag paste that was printed and sintered on a temporary substrate was transferred to the head of a step on a substrate to produce a conductive cantilever.…”

Section: Introductionmentioning

confidence: 99%

Improved Transfer Process for the Fully Additive Manufacturing of a Conductive Layer-Stacked Polymeric Cantilever

Kanazawa¹,

Kusaka²,

Yamamoto³

et al. 2019

MSA

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This paper reports on an efficient fabrication process for a polymeric cantilever covered with conductive nano silver. The entire structure can be constructed additively using a printing process, without the use of an etching process or a sacrificial layer. The fabricated cantilever exhibits good linearity and forms a submillimeter-ordered air gap between itself and the substrate surface. Fine operation of a capacitive force gauge was obtained using the capacitance between the conductive cantilever and an electrode on the substrate. This process is expected to make possible the efficient manufacturing of various types of sensors that measure mechanical strain in a cantilever structure.

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Novel printing process for the fabrication of cantilever structures by the partially controlled sintering of ink

Cited by 12 publications

References 33 publications

Fabrication of a Textile-Based Wearable Blood Leakage Sensor Using Screen-Offset Printing

Fabrication of a Textile-Based Wearable Blood Leakage Sensor Using Screen-Offset Printing

Development of a Strain Sensor Matrix on Mobilized Flexible Substrate for the Imaging of Wind Pressure Distribution

Improved Transfer Process for the Fully Additive Manufacturing of a Conductive Layer-Stacked Polymeric Cantilever

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