Brief Review of Nanosilver Sintering: Manufacturing and Reliability

Wang, Jintao; Chen, Si; Zhang, Luobin; Zhao, Xueting; Duan, Fangcheng; Chen, Hongtao

doi:10.1007/s11664-021-09078-1

Cited by 23 publications

(13 citation statements)

References 77 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The above is the process of strain matrix construction based on strain gradient theory, and then performing the integration of the cell and overall cell matrix, the custom micropiezoelectric cell for the micro-piezoelectric captive is constructed [ 23 , 24 ].…”

Section: Considering Aifantis Strain Gradient Principal Structure Rel...mentioning

confidence: 99%

Microscopic Interface and Multiscale Failure Analysis of Proposed Molecular Chain Polymers Based on Aifantis Strain Gradient Theory

Shu-hu

Guijie

2022

Computational Intelligence and Neuroscience

View full text Add to dashboard Cite

A study on the microscopic morphology of real-world polymer blends and its mechanism of change showed that the microscopic morphology of equiproportional mixtures gradually changed from a dense body structure to a network structure with the addition of the total polymer concentration up to 20%; the microscopic morphology of mixtures with different proportions was characterized by the most uniform network structure of equiproportional mixtures when the total polymer concentration was 20%. The polymer acts as a defoamer in the mixed system. In this paper, the relationship between the microscopic morphology of each mixture and the physicochemical behavior of the two polymer chains in the mixed system was investigated on the basis of the Aifantis strain gradient theory. Molecular polymer microscopic interface and multiscale failure analysis are proposed. It is shown that for the dihedral angle distribution of four consecutive coarse-grained particles, the peaks obtained from all atomic-scale simulation data are reproduced in the coarse-grained model simulations. The deviation is within 2.5% in most places, except for the local area where the deviation exceeds 5%. Therefore, we have achieved good results for large-scale failures.

show abstract

Section: Considering Aifantis Strain Gradient Principal Structure Rel...mentioning

confidence: 99%

Microscopic Interface and Multiscale Failure Analysis of Proposed Molecular Chain Polymers Based on Aifantis Strain Gradient Theory

Shu-hu

Guijie

2022

Computational Intelligence and Neuroscience

View full text Add to dashboard Cite

show abstract

“…Metal particles for digital printing are usually nanoparticles with diameters below 150 nm. Such small particle sizes enable proper printing through thin nozzles and sintering at temperatures below 200 °C [ 1 ]. By sintering the metal nanoparticles, structures with conductivities of usually 10 to 20% of the bulk materials are achieved.…”

Section: Introductionmentioning

confidence: 99%

“…With such small diameters, the achievable density during sintering increases significantly, because a higher ratio of surface to volume increases the free energy in a system of smaller particles. Hence, with smaller particles, the melting temperature and also the sintering temperature decrease and nanoparticle structures can be sintered more densely at low sintering temperatures of about 200 °C [ 1 ]. This probably led to a more densely sintered structure after sintering at 250 °C and to a higher TCR than in comparable research.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Inkjet-Printed Temperature Sensors Characterized according to Standards

Jaeger

Schwenck

Walter

et al. 2022

Sensors

View full text Add to dashboard Cite

This paper describes the characterization of inkjet-printed resistive temperature sensors according to the international standard IEC 61928-2. The goal is to evaluate such sensors comprehensively, to identify important manufacturing processes, and to generate data for inkjet-printed temperature sensors according to the mentioned standard for the first time, which will enable future comparisons across different publications. Temperature sensors were printed with a silver nanoparticle ink on injection-molded parts. After printing, the sensors were sintered with different parameters to investigate their influences on the performance. Temperature sensors were characterized in a temperature range from 10 °C to 85 °C at 60% RH. It turned out that the highest tested sintering temperature of 200 °C, the longest dwell time of 24 h, and a coating with fluoropolymer resulted in the best sensor properties, which are a high temperature coefficient of resistance, low hysteresis, low non-repeatability, and low maximum error. The determined hysteresis, non-repeatability, and maximum error are below 1.4% of the full-scale output (FSO), and the temperature coefficient of resistance is 1.23–1.31 × 10−3 K−1. These results show that inkjet printing is a capable technology for the manufacturing of temperature sensors for applications up to 85 °C, such as lab-on-a-chip devices.

show abstract

“…Nanosilver paste is considered an ideal bonding material since it can sinter at a temperature lower than 250 ℃ without pressure and operate at a temperature higher than 400 ℃ [ 5 , 6 , 7 , 8 ]. However, the difficulty of preparation and preservation of nanosilver paste results in a high cost in the sintering process.…”

Section: Introductionmentioning

confidence: 99%

Molecular Dynamics Simulation of Sintering Densification of Multi-Scale Silver Layer

et al. 2022

View full text Add to dashboard Cite

Based on molecular dynamics (MD), in this study, a model was established to simulate the initial coating morphology of silver paste by using a random algorithm, and the effects of different sizes of particles on sintering porosity were also analyzed. The MD result reveals that compared with the sintering process using large-scale silver particles, the sintering process using multi-scale silver particles would enhance the densification under the same sintering conditions, which authenticates the feasibility of adding small silver particles to large-scale silver particles in theory. In addition, to further verify the feasibility of the multi-scale sintering, a semi in-situ observation was prepared for a sintering experiment using micro-nano multi-scale silver paste. The feasibility of multi-scale silver sintering is proved by theoretical and experimental means, which can provide a meaningful reference for optimizing the sintering process and the preparation of silver paste for die-attach in powering electronics industry. In addition, it is hoped that better progress can be made on this basis in the future.

show abstract

Brief Review of Nanosilver Sintering: Manufacturing and Reliability

Cited by 23 publications

References 77 publications

Microscopic Interface and Multiscale Failure Analysis of Proposed Molecular Chain Polymers Based on Aifantis Strain Gradient Theory

Microscopic Interface and Multiscale Failure Analysis of Proposed Molecular Chain Polymers Based on Aifantis Strain Gradient Theory

Inkjet-Printed Temperature Sensors Characterized according to Standards

Molecular Dynamics Simulation of Sintering Densification of Multi-Scale Silver Layer

Contact Info

Product

Resources

About