scholarly journals Effect of Interfacial Characteristics of Metal Clad Polymeric Substrates on Electrical High Frequency Interconnection Performance

1984 ◽  
Vol 40 ◽  
Author(s):  
K. B. Bhasin ◽  
R. R. Romanofsky ◽  
G. E. Ponchak ◽  
D. C. Liu
Keyword(s):  
High Frequency ◽  
Skin Effect ◽  
Copper Film ◽  
Polymer Interface ◽  
Metallic Conductor ◽  
Polymeric Substrates ◽  
Metal Polymer ◽  
Microstrip Conductor ◽  
Interfacial Characteristics ◽  
Electronic Signal

AbstractEtched metallic conductor lines on metal clad polymeric substrates are used for electronic component interconnections. Significant signal losses are observed for microstrip conductor lines used for interconnecting high Frequency (above 20 GHz) devices. At these frequencies, the electronic signal travels closer to the metal-polymer interface due to the skin effect. Copper-teflon interfaces were characterized by SEM and AES to determine the interfacial properties. Data relating roughness of the copper film to signal losses was compared to theory. Films used to enhance adhesion, were also found, to a lesser extent, to contribute to these losses.

Chemical Characterization of Metal/Polymer interface

2015 ◽  
Vol 84 (8) ◽  
pp. 591-595 ◽  
Author(s):  
Yukiko IZUMI ◽  
Naoki BADEN ◽  
Kazuhiro MATSUDA
Keyword(s):  
Chemical Characterization ◽  
Polymer Interface ◽  
Metal Polymer

Degradation of a Metal–Polymer Interface Observed by Element-Specific Focused Ion Beam-Scanning Electron Microscopy

Langmuir ◽  
2020 ◽  
Vol 36 (11) ◽  
pp. 2816-2822 ◽  
Author(s):  
Takashi Kakubo ◽  
Katsunori Shimizu ◽  
Akemi Kumagai ◽  
Hiroaki Matsumoto ◽  
Miki Tsuchiya ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Focused Ion Beam ◽  
Ion Beam ◽  
Beam Scanning ◽  
Polymer Interface ◽  
Metal Polymer ◽  
Scanning Electron

Electrode-limited photoinjection at metal/polymer interface

1994 ◽  
Vol 67 (1-3) ◽  
pp. 103-107 ◽  
Author(s):  
Věra Cimrová ◽  
Stanislav Nešpůrek ◽  
Radomír Kužel ◽  
Wolfram Schnabel
Keyword(s):  
Polymer Interface ◽  
Metal Polymer

scholarly journals AN EXPERIMENTAL STUDY OF DIATHERMY

1927 ◽  
Vol 46 (5) ◽  
pp. 715-734 ◽  
Author(s):  
Ronald V. Christie ◽  
Carl A. L. Binger
Keyword(s):  
Electrical Resistance ◽  
High Frequency ◽  
Skin Effect ◽  
Current Flow ◽  
Homogeneous Medium ◽  
Local Heat ◽  
The Body ◽  
Technical Error ◽  
Theoretical Considerations ◽  
Maximal Heating

The principles governing the passage of high frequency currents through various conductors have been discussed and exemplified in experiments done on both non-living and living bodies. In Part I it was shown: (1) That the current takes the path of least electrical resistance rather than the shortest path; (2) that maximal heating occurs at the point of greatest concentration of the lines of current flow. In a homogeneous medium with parallel electrodes maximal heat production occurs in those portions of the medium adjoining the electrodes and the heat gradient is from without inward. Under these circumstances maximal heating never occurs at the center. In discussing the localization of heat not only the electrical resistance and current concentration, but also the cooling effect, must be considered. In experiments on the dog's cadaver no evidence of the so called "skin effect" could be demonstrated. This is in contradistinction to the findings of Bettman and Crohn, but the discrepancy is explained on the basis of what we believe to be a technical error in their work. The finding of no "skin effect" is in agreement with the conclusions of Dowse and Iredell, based on both experimental and theoretical considerations. In Part II three types of experiments were performed on the anesthetized dog. The conclusions to be derived from them are these: (1) The heat gradient of the body is reversed during diathermy and heating occurs from without inward; (2) deep heating during diathermy is greater than that which results from the application of local heat to the skin; (3) the lung can be heated by diathermy in spite of simultaneous cooling of the chest wall. These experiments we regard as satisfactory evidence of the passage of the current through the interior of the body.

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