نتایج جستجو برای: RF-PECVD

تعداد نتایج: 34809  

شفیع‌خانی, عزیزاله, عبدالقادری, سنور,

Silver nanoparticles embedded in DLC matrix, were prepared by co-deposition of RF-Sputtering and RF-PECVD method from acetylene gas and sliver target. The RF power and initial pressure of chamber were fixed. Variations of morphology, optical and electrical properties of these films over time were investigated

ژورنال: :علوم و مهندسی سطح ایران 0

هدف از این تحقیق ساخت نانوذرات مس- نیکل با اندازه های مختلف، به منظور  بررسی خواص کاتالیستی، مغناطیسی و حسگری این نانوذرات    می باشد. بنابراین نانو ذرات هسته-پوسته ای مس- نیکل در بستر لایه نازک کربنی به روش همزمان انباشت بخار شیمیایی و کند وپاش پلاسمای امواج رادیویی از هدف مس و نیکل در محیط گاز استیلن ساخته شد. ابتدا نانو ذرات مس در بستر کربنی آماده شدند. سپس لایه نیکل با ضخامت های مختلف روی آ...

2009
Cong Wang Nam-Young Kim

For integrated passive device (IPD) applications, we have successfully developed and characterized metalinsulator-metal (MIM) capacitors with 2000 Å plasma-enhanced chemical vapor deposition (PECVD) silicon nitride which are deposited with the SiH4/NH3 gas mixing rate, working pressure, and RF power of PECVD at 250oC. Five PECVD process parameters are designed to lower the refractive index and ...

1999
Jae-Hak Lee Dae-Hyun Kim Yong-Soon Park Myoung-Kyu Sohn Kwang-Seok Seo

We have fabricated advanced metal–insulator–metal (MIM) capacitors with ultra-thin (200 Å) remote-PECVD Si3N4 dielectric layers having excellent electrical properties. The breakdown field strength of MIM capacitors with 200-Å-thick Si3N4 was larger than 3.5 MV/cm, which indicates the excellent quality of the deposited Si3N4 film. The main capacitance per unit area extracted by radio frequency (...

2013
Aravind Kumar Pawan Kumar Parmender Kumar Kapil Malik P. N. Dixit

The crystallization of hydrogenated amorphous silicon layers (a-Si:H) [1,2] deposited by plasma enhanced chemical vapor deposition (PECVD) is of great interest. Generally, laser or metals are used to induce crystallization in aSi:H films. We have found that films deposited at high rf power (> 0.2 W/cm2) by PECVD technique shows some crystallites embedded in a-Si:H matrix and their after its vac...

Journal: :Microelectronics Reliability 2014
Matroni Koutsoureli Loukas Michalas Anestis Gantis George J. Papaioannou

Keywords: RF MEMS capacitive switch Dielectric charging Silicon nitride PECVD method a b s t r a c t The present paper aims to provide a better insight to the electrical characteristics of silicon nitride films that have been deposited with PECVD method under different conditions. The effect of film thickness, substrate temperature and the frequency that produces the plasma in PECVD method on t...

Journal: :Plasma Processes and Polymers 2022

Abstract Bacterial infection of chronic wounds is a major healthcare problem that affects the quality life millions patients worldwide and leads to substantial cost burden. This project focused on manufacture potential wound healing agent. Plasma polymers from oregano secondary metabolites (PP‐OSMs) were fabricated by radiofrequency plasma‐enhanced chemical vapor deposition (RF‐PECVD) in contin...

ارسلانی, سودابه, قدس الهی, طیبه, نیشابوری نژاد, تیام, وساقی, محمد علی ,

Ag, Au nanoparticles and Ag-Au nanocomposite were prepared by co-deposition of RF-sputtering and RF-PECVD from acetylene gas and Ag, Au targets. Atomic structure and topography were investigated by X-ray diffraction (XRD) and atomic force microscopy (AFM), respectively. UV-Visible spectra samples indicated that the activity of Ag and Au nanoparticles in the vicinity of each other increased ...

2008
J. T. Walton

Results on the characterization of the elecmcal properties of amorphous silicon-films for the three different growth methods, RF sputtering, PECVD, and LPCVD are reported. The performance of these a-Si films as heterojunctions on high resistivity p-type and n-type crystalline silicon is examined by measuring the noise, leakage current and the alpha particle response of 5 mm diameter detector st...

2008
Hyun-jun Cho Jin-Cherl Her Kang-il Lee Ho-young Cha Kwang-Seok Seo

1. Introduction The surface trap of AlGaN/GaN high electron mobility transistors (HEMTs) can cause current collapse phenomenon which is the most serious limiting factor of the device's output power at high frequency operation. The surface passivation is a key step to reduce surface state effects and the quality of surface passivation film is very important [1]. Silicon nitride (SiNX) is widely ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید