Novel Multi-Material 3-Dimensional Low-Temperature Co-Fired Ceramic Base

Hirao, Takahiro; Hamada, Shu

doi:10.1109/access.2019.2892654

Cited by 9 publications

(10 citation statements)

References 8 publications

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“…3D printing of highly pure copper with superior electrical and thermal properties has been studied extensively due to its broad potential in many applications including electronic devices [1,[12][13][14][15][16][17][18][19][20], thermal management systems [4,12], and the aerospace industry [4,12,[21][22][23][24][25]. Compared to conventional 3D printing of highly pure copper with superior electrical and thermal properties has been studied extensively due to its broad potential in many applications including electronic devices [1,[12][13][14][15][16][17][18][19][20], thermal management systems [4,12], and the aerospace industry [4,12,[21][22][23][24][25]. Compared to conventional fabrication methods such as metal casting, welding, and machining, 3D printing can fabricate more optimized and complex 3D copper parts without using additional tools [26][27][28][29][30][31]…”

Section: Introductionmentioning

confidence: 99%

3D Printing of Highly Pure Copper

Tran

Chinnappan

Lee

et al. 2019

Metals

166

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Copper has been widely used in many applications due to its outstanding properties such as malleability, high corrosion resistance, and excellent electrical and thermal conductivities. While 3D printing can offer many advantages from layer-by-layer fabrication, the 3D printing of highly pure copper is still challenging due to the thermal issues caused by copper’s high conductivity. This paper presents a comprehensive review of recent work on 3D printing technology of highly pure copper over the past few years. The advantages and current issues of 3D printing methods are compared while different properties of copper parts printed by these methods are summarized. Finally, we provide several potential applications of the 3D printed copper parts and an overview of current developments that could lead to new improvements in this advanced manufacturing field.

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Section: Introductionmentioning

confidence: 99%

3D Printing of Highly Pure Copper

Tran

Chinnappan

Lee

et al. 2019

Metals

166

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“…3). Murata's NeuroStone ™ technology makes such a design possible by combining a multi-material 3D-printing process with custom inks for ceramic, copper, and support materials [8].…”

Section: B Implant Packagingmentioning

confidence: 99%

“…These layers harden as the solvents evaporate. After the layering of materials is complete, the electrode is placed in a hypoxic environment containing N 2 /H 2 atmosphere and heated to above 800°C [8]. This co-firing process removes the support material, resulting in the presented electrode structure (Fig.…”

Section: Electrode Design and Constructionmentioning

confidence: 99%

“…In order to advance the mass production of lower-cost biopotential electrodes, additive manufacturing (i.e., 3Dprinting) technology can play a significant role. In this work, NC State University, Raleigh, NC, USA collaborated with the Murata Manufacturing Co., Ltd., Kyoto, Japan, to explore the possible adoption of a novel technique for printing metal contacts on a co-fired ceramic base called Neurostone ™ [8]. This novel technology allowed us to print the electrodes in bulk and to easily connect the external tissue surfaces to the electrophysiology front-end circuit inside the implant through the designed via links.…”

Section: Introductionmentioning

confidence: 99%

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Novel 3D-printed Electrodes for Implantable Biopotential Monitoring

Ahmmed

Reynolds

Hamada

et al. 2021

2021 43rd Annual International Conference of the IEEE Engineering in Medicine &Amp; Biology Society (EMBC)

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A major bottleneck in the manufacturing process of a medical implant capable of biopotential measurements is the design and assembly of a conductive electrode interface. This paper presents the use of a novel 3D-printing process to integrate conductive metal surfaces on a low-temperature co-fired ceramic base to be deployed as electrodes for electrocardiography (ECG) implants for small animals. In order to fit the ECG sensing system within the size of an injectable microchip implant, the electronics along with a pin-type lithium-ion battery are inserted into a cylindrical glass tube with both ends sealed by these 3D printed composite electrode discs using biomedical epoxy. In the scope of this paper, we present a proof-of-concept in vivo experiment for recording ECG from an avian animal model under local anesthesia to verify the electrode performance. Simultaneous recording with a commercial device validated the measurements, demonstrating promising accuracy in heart rate and breathing rate monitoring. This novel technology could open avenues for the mass manufacturing of miniaturized ECG implants.Clinical relevance-A novel manufacturing process and an implantable system are presented for continuous physiological monitoring of animals to be used by veterinarians, animal scientists, and biomedical researchers with potential future applications in human health monitoring.

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“…[ 27 ] Furthermore, both ceramic matrix and silver conductor were built via inkjet printing but a large shrinkage rate was observed due to the low solid content of the inks. [ 22 ] In the view of previous work, DW shows unique advantages for customizing ceramic electronics: 1) a variety of raw materials with different physical and chemical properties can be handled by DW processes; 2) DW modules are versatile and can be easily installed to existing AM equipment; 3) the digital fabrication nature of DW enables great design and manufacturing flexibility which is particularly desirable for circuitry patterning.…”

Section: Introductionmentioning

confidence: 99%

Multimaterial Additive Manufacturing of LTCC Matrix and Silver Conductors for 3D Ceramic Electronics

Wang

et al. 2022

Adv Materials Technologies

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Ceramic electronics have the advantages of large ampacity, high thermal conductivity, and excellent dielectric properties which are widely used in power electronics, optoelectronics, automotive industry, and aerospace technology. This work proposes a multimaterial dispensing additive manufacturing technology for customizing the 3D low‐temperature‐cofired ceramic (LTCC) circuitry. Customized LTCC aqueous slurry is first developed and then 3D printed together with commercial silver paste to build the green body. Then, the green body is debinded and sintered with a three‐stage process at 200, 500, and 850 °C, respectively. The shrinkage rate in 3D is around 17% which is comparable with commercial LTCCs. The surface quality of the sintered ceramic is improved obviously compared with that of the green body due to the glazing effect of the glass phase. For the silver conductor, the resistivity and the temperature coefficient of resistance are 2.34 ± 0.04 µΩ cm and 3.56 × 10−3 °C−1, respectively. A serial of demonstrators including 2D, 3D light‐emitting diode ceramic circuit boards and a ceramic heater/thermometer is developed to prove the potential and feasibility of the proposed technology.

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Novel Multi-Material 3-Dimensional Low-Temperature Co-Fired Ceramic Base

Cited by 9 publications

References 8 publications

3D Printing of Highly Pure Copper

3D Printing of Highly Pure Copper

Novel 3D-printed Electrodes for Implantable Biopotential Monitoring

Multimaterial Additive Manufacturing of LTCC Matrix and Silver Conductors for 3D Ceramic Electronics

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