Electrochemical Migration Characteristics of Screen-Printed Silver Patterns on FR-4 Substrate

2012 ◽  
Vol 12 (4) ◽  
pp. 3219-3223 ◽  
Author(s):  
Kwang-Seok Kim ◽  
Jee-Hyuk Ahn ◽  
Bo-In Noh ◽  
Seung-Boo Jung
2012 ◽  
Vol 63 (11) ◽  
pp. 694-699
Author(s):  
Isao SHITANDA ◽  
Kazuya INOUE ◽  
Katsuhiro YAMAMOTO ◽  
Yoshinao HOSHI ◽  
Masayuki ITAGAKI

2009 ◽  
Vol 60 (5) ◽  
pp. 342-348 ◽  
Author(s):  
Isao SHITANDA ◽  
Katsuhiro YAMAMOTO ◽  
Kunihiro WATANABE ◽  
Masayuki ITAGAKI ◽  
Yasufumi ASANO

2014 ◽  
Vol 14 (12) ◽  
pp. 9493-9497 ◽  
Author(s):  
Kwang-Ho Jung ◽  
Kwang-Seok Kim ◽  
Bum-Geun Park ◽  
Seung-Boo Jung

Author(s):  
Anil Kurella ◽  
Aravind Munukutla ◽  
J.S. Lewis

Abstract PCB surface finishes like Immersion silver (ImAg) are commonly used in Pb-free manufacturing environments following RoHS legislation. With this transition, however the numbers of field failures associated with electrochemical migration, copper sulphide corrosion, via barrel galvanic corrosion are on a steady rise. More often than not ImAg surfaces seem to assist these failing signatures. As computers penetrate into emerging markets with humid and industrialized environments there is a greater concern on the reliability and functionality of these electronic components.


2020 ◽  
Vol 16 (3) ◽  
pp. 341-348
Author(s):  
Surinya Traipop ◽  
Suchada Chuanuwatanakul ◽  
Orawon Chailapakul ◽  
Eakkasit Punrat

Background: Recently, Derris scandens, a Thai herbal medicine with anti-inflammatory activity, is widely used as beverage and supplementary food. When the traditional medicine is a choice for health therapy, the simple and reliable equipment is required to control the suitable consuming amount of the active component. Objective: To develop the electrochemical sensor for genistein determination in Derris scandens with high sensitivity and rapid operation. Methods: An in-house screen-printed electrochemical sensor consisting of a three-electrode system was developed for genistein determination. A silver/silver chloride (Ag/AgCl) reference electrode, a carbon counter electrode and a carbon working electrode were prepared on a 0.3-mm-thick plastic substrate by the screen-printing technique using conductive ink. The dimensions of each sensor were 2.5×1.0 cm. Only 50 µL of sample solution was required on this device for the determination of genistein concentration by rapid response square wave voltammetry. Results: The oxidation peak of genistein appeared with good response in acidic media at a peak potential of 0.6 V. Moreover, the signal was enhanced by modifying the conductive carbon ink with cobalt( II) phthalocyanine. Under the optimized conditions, the linear range was found to be 2.5-150 µM and the detection limit was 1.5 µM. Moreover, the small volume extraction was successfully developed without any further pre-concentration. This proposed method was applied to determine genistein in Derris scandens with satisfying results. Conclusion: The proposed method is promising as an alternative method for genistein determination with facile and fast analysis.


Author(s):  
Somayeh Tajik ◽  
Hadi Beitollahi ◽  
Fariba Garkani Nejad ◽  
Mohadeseh Safaei ◽  
Peyman Mohammadzadeh Jahani

2011 ◽  
Vol 56 (11) ◽  
pp. 3988-3995 ◽  
Author(s):  
Elena Jubete ◽  
Kamila Żelechowska ◽  
Oscar A. Loaiza ◽  
Pedro J. Lamas ◽  
Estibalitz Ochoteco ◽  
...  

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