• Title, Summary, Keyword: Benzotriazole (BTA)

Search Result 25, Processing Time 0.049 seconds

The Effect of Antistatic Agent for Streaming Electrification on the Breakdown Characteristics of Synthetic Fluids (합성절연유의 절연파괴 특성에 미치는 유동대전 억제제의 영향)

  • Song, Byung-Gi;Lee, Soo-Won;Shin, Jong-Yeol;Shin, Hyun-Teak;Hong, Jin-Woong
    • Proceedings of the KIEE Conference
    • /
    • /
    • pp.1414-1416
    • /
    • 1997
  • The electrical breakdown characteristics of the synthetic fluids No.2 of KS class VII used for insulating and cooling the materials for the ignition coil are studied. Also, Benzotriazole(BTA) as the streaming electrification suppressant additive is added to the oil, and the change of electrical properties due to different BTA concentration is investigated. To investigate the electrical characteristics, the breakdown strength of each specimen by an experiment for AC breakdown are analyzed. The breakdown strength of specimen by adding BTA is higher than virgin specimen in low e region, but lower than that in high region because of melting BTA. It is considered that the effective content of BTA as charge suppressant additive is about 10[ppm] from the results of AC breakdown.

  • PDF

Dielectric Properties of Ultra-High Voltage Transformer Oils due to Streaming Electrification Suppressant (유동대전 억제제에 의한 초고압 변압기유의 유전 특성)

  • 이태훈;신종열;조경순;이용우;이수원;홍진웅
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
    • /
    • /
    • pp.203-206
    • /
    • 1998
  • In this paper, specimens stirred with the several kinds of benzotriazole(following as BTA) addition which is very effective to decrease the streaming electrification, are tested to investigate the change of properties for insulating fluid using in ultra-high voltage transformer, and it will give a guideline to find out a proper quantity of BTA addition for the most effective suppression against the streaming electrification. In GC, we could not find out the change of the physical properties in an insulating fluid by BTA. In a flowing transformer oil, the characteristics on dielectric of specimen contained BTA 10[ppm] are superior to the others.

  • PDF

Dielectric Characteristics due to BTA in Insulating Liquids for the Ignition Coil of Automobile (자동차 점화장치용 절연유의 BTA 함유에 따른 유전특성)

  • 신종열;조돈찬;조경순;이수원;홍진웅
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
    • /
    • /
    • pp.253-256
    • /
    • 1997
  • Recently, mixture insulating oils is widely used in respect that the physical and the electrical properties is more excellentthan mineral oils, such as alkylbenzene oils and silicone oils, and that cost is lower than alkylbenzene oils or silicone oils. Also, it is important to research for the additive BTA(Benzotriazole) as a study for the phenomena of streaming electrification of mineral oils. So, mixture insulating oils class 7-2, is selected as a specimen in this experiments, and the contents of BTA in specimen are 0.2[ppm], 10[ppm] and 30[ppm], respectively. Then, the physical and the electrical properties for each specimen is made researches.

  • PDF

Mechanical Analysis on Uniformity in Copper Chemical Mechanical Planarization (Cu CMP에서의 연마 균일성에 관한 기계적 해석)

  • Lee, Hyun-Seop;Park, Boum-Young;Jeong, Hae-Do;Kim, Hyoung-Jae
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
    • /
    • v.20 no.1
    • /
    • pp.74-79
    • /
    • 2007
  • Most studies on copper Chemical Mechanical Planarization (CMP) have focused on material removal and its mechanisms. Although many studies have been conducted on the mechanism of Cu CMP, a study on uniformity in Cu CMP is still unknown. Since the aim of CMP is global and local planarization, the approach to various factors related to uniformity in Cu CMP is essential to elucidate the Cu CMP mechanism as well. The main purpose of the experiment reported here was to investigate and mechanically analyze the roles of slurry components in the formation of the uniformity in Cu CMP. In this paper, Cu CMP was performed using citric acid($C_{6}H_{8}O_{7}$), hydrogen peroxide($H_{2}O_{2}$), colloidal silica, and benzotriazole($BTA,\;C_{6}H_{4}N_{3}H$) as a complexing agent, an oxidizer, an abrasive, and a corrosion inhibitor, respectively. All the results of this study showed that within-wafer non-uniformity(WIWNU) of Cu CMP could be controlled by the contents of slurry components.

Research of Flow Velocity and BTA According to the Streaming Electrification of Vegetable Insulating Oils (식물성 절연유의 유속과 BTA에 따른 유동대전 현상 연구)

  • Choi, Sun-Ho;Bang, Jeong-Ju;Huh, Chang-Su
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
    • /
    • v.25 no.10
    • /
    • pp.791-797
    • /
    • 2012
  • Mineral insulating oils are an important insulating materials in oil-filled transformer. However, the mineral oil is the cause of the environmental problem. The vegetable oils are substitutes for mineral oil because of its biodegradability characteristic. As large size and high rating of the transformer increases, the losses increase at a faster rate. So insulating oil is forced circulation in the oil-filled transformer by using oil pumps. The flow electrification occurs when insulating oil was forced to be circulated. To check the flow electrification, had conducted experiments varying factors. As a result, the streaming electrification could see the changes according to flow velocity, oil temperature and insulation materials.

Electrical properties of insulating oils for automobile ignition coil (자동차 점화코일용 절연유의 전기적 특성)

  • 신종열;홍진웅
    • Transactions of the Korean Society of Automotive Engineers
    • /
    • v.7 no.5
    • /
    • pp.172-177
    • /
    • 1999
  • In this paper, the physical and electrical properties of the synthetic fluids No. 2 class Ⅶ used the insulating oils for automobile ignition coil are studied. Also, benzotriazole(BTA) as the streaming electrification suppressant additive is added to the oil, and the change of physical and electrical properties due to different BTA concentration is investigated. To investigate the electrical characteristics, the breakdown strength of each specimen by an experiment for AC breakdown and the changes of conductivity by measuring volume resistivity are analyzed. It is considered that the effective content of BTA as charge suppressant additive is about 10[ppm] from the results of AC breakdown and volume resistivity test.

  • PDF

The Electrical Conduction Characteristics of Transformer Oils added the Anti-static Agent for Streaming Electrification (유동대전 억제제가 첨가된 변압기유의 전기전도 특성)

  • Lee, Yong-Woo;Lee, Tae-Hoon;Oh, Se-Young;Lee, Jong-Pil;Cha, Kwang-Hoon;Hong, Jin-Woong
    • Proceedings of the KIEE Conference
    • /
    • /
    • pp.1213-1215
    • /
    • 1997
  • In order to investigate the electrical characteristics due to the BTA(Benzotriazole) additive in the transformer, the electrical characteristics of the transformer oils contained benzotriazole as an anti-static agent for streaming electrification is studied by measuring the electric conduction. As a result of the electrical conduction characteristics, it is confirmed that the conduction current of virgin specimen is more higher than that of specimen contained the BT A 10[ppm] over 35[$^{\circ}C$], but that of specimen contained the BT A 10[ppm] over 50[$^{\circ}C$] is increased.

  • PDF

Cu CMP Property by Addition of Corrosion Inhibitor and Complexing Agent (부식 방지제와 Complexing Agent 첨가에 따른 Cu CMP 특성)

  • Kim, In-Pyo;Kim, Nam-Hoon;Kim, Sang-Yong;Lee, Cheol-In;Eom, Joon-Cheol;Chang, Eui-Goo
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
    • /
    • /
    • pp.343-346
    • /
    • 2003
  • A systematic study of Cu CMP in terms of the effect of slurry chemicals(oxidizer, corrosion inhibitor, complexing agent) on the process characteristics has been performed. In acidic media, a corrosion inhibitor, benzotriazole(BTA) and tolytriazol(TTA) was used to control the removal rate and avoid isotropic etching. When complexing agent is added with $H_2O_2$ 2wt% in the slurry, a corrosion rate was presented very good. Most of in, it was appeared that BTA is possible to be replaced by TTA. The tartaric acid was distinguished for the effect among complexing agents. n we apply this results to copper CMP process, it is thought that we will be able to obtain better yield.

  • PDF

Environmental Impact of Concentration of Slurry Components in Thick Copper CMP

  • Lee, Hyunseop
    • International Journal of Precision Engineering and Manufacturing-Green Technology
    • /
    • v.4 no.1
    • /
    • pp.13-18
    • /
    • 2017
  • Chemical mechanical polishing (CMP) is the dirtiest semiconductor process using a slurry containing chemicals and abrasives. CMP process consumes a huge amount of slurry, which affects environmental sustainability negatively. The semiconductor industry has attempted to evaluate and reduce the carbon dioxide equivalent (CDE) for environmental sustainability. In this study, the environmental impact of the concentration of the slurry components in CMP of thick copper films is investigated. The selected slurry components for copper CMP are citric acid, hydrogen peroxide ($H_2O_2$), abrasive, and benzotriazole (BTA). The carbon intensity of each slurry component is estimated from previously reported studies. During the experiments, the material removal rates (MRRs) are measured for various compositions of the slurry. The CDE is obtained by measuring electric energy, slurry, and ultrapure water (UPW) consumptions. We find that citric acid and BTA positively and negatively influence the CDE, respectively. Further, 2 wt.% of $H_2O_2$ and 4 wt.% of abrasive result in the lowest values of the CDE in thick copper CMP.

A Study on the Corrosion Effects by Addition of Complexing Agent in the Copper CMP Process

  • Kim, Sang-Yong;Kim, Nam-Hoon;Kim, In-Pyo;Chang, Eui-Goo;Seo, Yong-Jin;Chung, Hun-Sang
    • Transactions on Electrical and Electronic Materials
    • /
    • v.4 no.6
    • /
    • pp.28-31
    • /
    • 2003
  • Copper CMP in terms of the effect of slurry chemicals (oxidizer, corrosion inhibitor, complexing agent) on the process characteristics has been performed. Corrosion inhibitors, benzotriazole (BTA) and tolytriazol (TTA) were used to control the removal rate and avoid isotropic etching. When complexing agent is added with H$_2$O$_2$ 2 wt% in the slurry, the corrosion rate was presented very well. In the case of complexing agent, it was estimated that the proper concentration is 1 wt%, because the addition of tartaric acid to alumina slurry causes low pH and the slurry dispersion stability become unstable. There was not much change of the removal rate. It was assumed that BTA 0.05 wt% is suitable. Most of all, it was appeared that BTA is possible to be replaced by TTA. TTA was distinguished for the effect among complexing agents.