• 제목/요약/키워드: Plating adhesion

검색결과 135건 처리시간 0.025초

전해 도금을 이용한 높은 접착 특성을 갖는 섬유 기반 웨어러블 디바이스 제작 (Fabrication of Fabric-based Wearable Devices with High Adhesion Properties using Electroplating Process)

  • 김형구;노호균;차안나;이민정;박준범;정탁;하준석
    • 마이크로전자및패키징학회지
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    • 제28권1호
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    • pp.55-60
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    • 2021
  • 유연한 특성을 유지하면서 높은 접착력을 가진 웨어러블 디스플레이를 제작하기 위하여 전해도금법을 이용한 접착법을 진행하였다. 또한 섬유에 접착된 LED의 사파이어 기판을 제거하기 위하여 LLO 전사법을 이용하였다. 그 후 전해도금을 이용한 접착법을 진행한 샘플의 SEM, EDS 데이터를 통하여 실제로 구리가 섬유직물의 격자사이를 관통하여 성장하며 광원과 섬유를 고정시켜주는 것을 확인하였다. 구리의 접착특성을 확인하기 위하여 Universal testing machine (UTM)을 이용하여 측정하였다. 도금 접착 후 laser lift-off (LLO) 전사공정을 완료한 샘플과 전사공정을 진행하지 않은 LED의 특성을 probe station을 이용하여 비교하였다. 공정 이후의 광원의 특성을 확인하기 위하여 인가 전류에 따른 electroluminescence (EL)을 측정하였다. 전류가 증가할수록 온도가 상승하여 Bandgap이 감소하기 때문에 spectrum이 천이하는 것을 확인하였다. 또한 radius 변화에 따른 샘플의 전기적 특성 변화를 probe station을 이용하여 확인하였다. Radius 변형에도 구리가 bending stress를 견딜 수 있는 기계적 강도를 가지고 있어 Vf 변화는 6% 이하로 측정되었다. 이러한 결과를 토대로 웨어러블 디스플레이 뿐만 아니라 유연성이 필요한 배터리, 촉매, 태양전지 등에 적용되어 웨어러블 디바이스의 발전에 기여할 수 있을 것으로 기대한다.

플라즈마 에칭 및 $PdCl_2/SnCl_2$ 촉매조건이 무전해 동도금 피막의 성능에 미치는 영향 (Effect of Plasma Etching and $PdCl_2/SnCl_2$ Catalyzation on the Performance of Electroless Plated Copper Layer)

  • 오경화;김동준;김성훈
    • 한국의류학회지
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    • 제27권7호
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    • pp.843-850
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    • 2003
  • Cu/PET film composites were prepared by electroless copper plating method. In order to improve adhesion between electroless plated Cu layer and polyester (PET) film, the effect of pretreatment conditions such as etching method, mixed catalyst composition were investigated. Chemical etching and plasma treatment increased surface roughness in decreasing order of Ar>HCl>O$_2$>NH$_3$. However, adhesion of Cu layer on PET film increased in the following order: $O_2$<Ar<HCl<NH$_3$. It indicated that appropriate surface roughness and introduction of affinitive functional group with Pd were key factors of improving adhesion of Cu layer. PET film was more finely etched by HCI tolution, resulting in an improvement in adhesion between Cu layer and PET film. Plasma treatment with NH$_3$produced nitrogen atoms on PET film, which enhances chemisorption of Pd$^{2+}$ on PET film, resulting in improved adhesion and shielding effectiveness of Cu layer deposited on the Pd catalyzed surface. Surface morphology of Cu plated PET film revealed that Pd/Sn colloidal particles became more evenly distributed in the smaller size by increasing the molar ratio of PdCl$_2$; SnCl$_2$from 1 : 4 to 1 : 16. With increasing the molar ratio of mixed catalyst, adhesion and shielding effectiveness of Cu plated PET film were increased.d.

Surface Modification by Atmospheric Pressure DBDs Plasma: Application to Electroless Ni Plating on ABS Plates

  • Song, Hoshik;Choi, Jin Moon;Kim, Tae Wan
    • Transactions on Electrical and Electronic Materials
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    • 제14권3호
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    • pp.133-138
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    • 2013
  • Acrylonitrile-butadiene-styrene (ABS) plastic is a polymer material extensively used in electrical and electronic applications. Nickel (Ni) thin film was deposited on ABS by electroless plating, after its surface was treated and modified with atmospheric plasma generated by means of dielectric barrier discharges (DBDs) in air. The method in this study was developed as a pre-treatment for electroless plating using DBDs, and is a dry process featuring fewer processing steps and more environmentally friendliness than the chemical method. After ABS surfaces were modified, surface morphologies were observed using a scanning electron microscope (SEM) to check for any physical changes of the surfaces. Cross-sectional SEM images were taken to observe the binding characteristics between metallic films and ABS after metal plating. According to the SEM images, the depths of ABS by plasma are shallow compared to those modified by chemically treatment. The static contact angles were measured with deionized (DI) water droplets on the modified surfaces in order to observe for any changes in chemical activities and wettability. The surfaces modified by plasma showed smaller contact angles, and their modified states lasted longer than those modified by chemical etching. Adhesion strengths were measured using 3M tape (3M 810D standard) and by 90° peel-off tests. The peel-off test revealed the stronger adhesion of the Ni films on the plasma-modified surfaces than on the chemically modified surfaces. Thermal shock test was performed by changing the temperature drastically to see if any detachment of Ni film from ABS would occur due to the differences in thermal expansion coefficients between them. Only for the plasma-treated samples showed no separation of the Ni films from the ABS surfaces in tests. The adhesion strengths of metallic films on the ABS processed by the method developed in this study are better than those of the chemically processed films.

AIP 코팅법에서 코팅 시간이 고속도강의 TiN 코팅층 성질에 미치는 영향 (Effect of Coating Time on the Property of TiN-Coated Layer of High Speed Steel by Arc Ion Plating)

  • 김해지;전만수
    • 소성∙가공
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    • 제15권5호
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    • pp.366-372
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    • 2006
  • The effect of coating time in arc ion plating on surface properties of the TiN-coated high speed steel(SKH51) is presented in this paper. Surface roughness, micro-hardness, coated thickness, atomic distribution of TiN and adhesion strength are measured for various coating times. It has been shown that the coating time has a deep influence on the micro-hardness, the coated thickness, the atomic distribution of Ti and the adhesion strength of the SKH51 steels but that it has little influence on the surface roughness.

AIP 코팅법에서 코팅 시간이 고속도강의 TiN 코팅층 성질에 미치는 영향 (Effect of Coating Time on the Property of TiN-Coated Layer on High Speed Steel by Arc Ion Plating)

  • 김해지;전만수
    • 한국소성가공학회:학술대회논문집
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    • 한국소성가공학회 2006년도 춘계학술대회 논문집
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    • pp.308-313
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    • 2006
  • The effect of coating time on surface properties of the TiN-coated high speed steel(SKH51) by arc ion plating is and presented in this paper. Surface roughness, micro-hardness, coated thickness, atomic distribution of TiN and adhesion strength are measured for various coating times. It has been shown that the coating time has a deep influence more than 60 minites on the micro-hardness, coated thickness, atomic distribution of Ti and adhesion strength of the SKH51 steels, but that the coating time has little influence on the surface roughness.

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AIP법에서 증착시간이 SM45C 강의 TiN 코팅층 성질에 미치는 영향 (Effect of Deposition Time on the Properties of TiN-coated Layer of SM45C Steel by Arc Ion Plating)

  • 김해지
    • 한국기계가공학회지
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    • 제10권5호
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    • pp.44-50
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    • 2011
  • The effect of deposition time in arc ion plating on surface properties of the TiN-coated SM45C steel is presented in this paper. The surface roughness, micro-particle, micro-hardness, coated thickness, atomic distribution of TiN, and adhesion strength are measured for various deposition times. It has been shown that the deposition time has a considerable effect on the micro-hardness, the coated thickness, and the atomic distribution of TiN of the SM45C steels but that it has little influence on the surface roughness and adhesion strength.

AIP 법에서 질소가스 압력이 고속도강의 TiN 코팅층 성질에 미치는 영향 (Effect of Nitrogen Gas Pressure on the Property of TiN-Coated Layer of High Speed Steel by Arc ion Plating)

  • 김해지;전만수
    • 한국정밀공학회지
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    • 제25권7호
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    • pp.124-130
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    • 2008
  • The effect of nitrogen gas pressure in arc ion plating on surface properties of the TiN-coated high speed steel(SKH51) is presented in this paper. The surface roughness, micro-particle, micro-hardness, coated thickness, atomic distribution of TiN, and adhesion strength are measured fur various nitrogen gas pressures. It has been shown that the nitrogen gas pressure has a considerable effect on the surface roughness, adhesion strength, atomic distribution of TiN, and surface deposition of TiN of the high speed steels but that it has little influence on the micro-hardness and coated thickness.

증착방법에 따른 DLC 막의 마찰-마모 특성평가 (Characterization of Tribological Properties of DLC Films Prepared by Different Deposition Method)

  • 오윤석
    • 한국세라믹학회지
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    • 제46권5호
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    • pp.497-504
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    • 2009
  • DLC is considered as the candidate material for application of moving parts in automotive components relatively in high pressure and temperature operating conditions for its high hardness with self lubrication and chemical inertness. Different deposition method such as arc plating, ion gun plating and PECVD were used for comparing mechanical and tribological properties of each DLCs deposited on stainless steel with 1 um thick respectively. Among these 3 types of DLCs, the arc plated DLC film showed highest value for wear resistance in dry condition. From the results of analysis for physical properties of DLC films, it seems that the adhesion force and crack initiation modes were more important factors than intrinsic mechanical properties such as hardness, elastic modulus and/or roughness to the wear resistance of DLC films. Raman spectroscopy was used for understanding chemical bonding natures of each type of DLC films. Typical D and G peaks were identified based on the deposition method. Hardness of the coating layers were identified by nanoindentation method and the adhesions were checked by scratch method.

Nylon-Inorganic Filler Alloy상의 니켈 도금 기술 (Nickel Plating Techniques of Nylon-Inorganic Filler Alloy)

  • 노윤찬
    • 공업화학
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    • 제10권1호
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    • pp.67-72
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    • 1999
  • Nylon-inorganic filler alloy의 도금에 있어 최적 전처리 공정에 관하여 연구하였다. Nylon-inorganic filler alloy는 etching 공정만으로도 무정형층을 제거하여 요구되는 충분한 밀착력을 얻을 수 있었다. SEM과 표면조도 측정으로부터 etching 공정이 수지표면을 매우 거칠고 접착력을 우수하게 만든다는 결과를 얻었으며, 도금물질의 표면상태와 접착력은 Nylon-inorganic filler alloy 수지의 성형조건에 의존한다는 것을 확인하였다. EDS 분석으로 전처리 후 수지표면의 잔류금속의 종류와 양을 측정한 결과 Cr은 Sn과 Pd의 흡착에 크게 영향을 미치지 않는 것으로 나타났다.

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ABS 수지상의 도금층 형성을 위한 에칭 방법 연구 (Study of Etching Method for Plating Layer Formation of ABS Resin)

  • 최경수;최기덕;신현준;이상기;최순돈
    • 한국표면공학회지
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    • 제47권3호
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    • pp.128-136
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    • 2014
  • In the present study, we successfully developed an eco-friendly chemical etching solution and proper condition for plating on ABS material. The mechanism of forming Ni plating layer on ABS substrate is known as following. In general, the etching solution used for the etching process is a solution of chromic acid and sulfuric acid. The etching solution is given to the surface resulting in elution of butadiene group, so-called anchor effect. Such a rough surface can easily adsorb catalyst resulting in the increase of adhesion between ABS substrate and Ni plating layer. However a use of chromic acid is harmful to environment. It is, therefore, essential to develop a new alternative solution. In the present study, we proposed an eco-friendly etching solution composed of potassium permanganate, sulfuric acid and phosphoric acid. This solution was testified to observe the surface microstructure and the pore size of electrical Ni plating layer, and the adhesive correlation between deposited layers fabricated by electro Ni plating was confirmed. The result of the present study, the newly developed, eco-friendly etching solution, which is a mixture of potassium permanganate 25 g/L, sulfuric acid 650ml/L and phosphoric acid 250ml/L, has a similar etching effect and adhesion property, compared with the commercially used chromium acid solution in the condition at $70^{\circ}C$ for 5 min.