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Article
Publication date: 23 November 2010

Jochen Borris, Michael Thomas, Antje Dohse, Claus‐Peter Klages, Andreas Möbius, Danica Elbick, Ulrich Prinz, Karl‐Heinz Wandner and Ernst‐Rudolf Weidlich

The purpose of this paper is to present details of the plasma printing and packaging technology (P3T), a new reel‐to‐reel technology under development for the cost and resource…

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Abstract

Purpose

The purpose of this paper is to present details of the plasma printing and packaging technology (P3T), a new reel‐to‐reel technology under development for the cost and resource efficient manufacture of flexible printed circuits (FPC).

Design/methodology/approach

The first two process steps of P3T include reel‐to‐reel patterned activation of polymer film at ambient pressure in the so‐called plasma‐printing process and subsequent selective electroless plating of the plasma‐activated areas of the polymer film. The concept underlying the P3T project includes processing of flexible films with widths up to 400 mm.

Findings

Copper, palladium and nickel metal structures with widths down to less than 100 μm were produced on various polymers. Peel strengths according to the German DIN Standard 53494 of copper on polyimide film reached values in the region of 1 N/mm, sufficient for electronic applications. Sufficient wetting of the solder on copper metallisations and solderability were found.

Research limitations/implications

P3T covers the whole manufacturing chain for FPCs from surface patterning of the dielectric carrier to component assembly and soldering. This paper focuses, however, essentially on the first two process steps including plasma activation and electroless plating.

Originality/value

A unique feature of the flexible circuit manufacturing technology presented here is the combination of the additive‐technique, the absence of vacuum processes, the continuous production mode and the ability to process polymer carrier films with widths of 400 mm.

Details

Circuit World, vol. 36 no. 4
Type: Research Article
ISSN: 0305-6120

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Article
Publication date: 18 November 2022

Urs Alexander Fichtner, Lukas Maximilian Horstmeier, Boris Alexander Brühmann, Manuel Watter, Harald Binder and Jochen Knaus

One of the currently debated changes in scientific practice is the implementation of data sharing requirements for peer-reviewed publication to increase transparency and…

165

Abstract

Purpose

One of the currently debated changes in scientific practice is the implementation of data sharing requirements for peer-reviewed publication to increase transparency and intersubjective verifiability of results. However, it seems that data sharing is a not fully adopted behavior among researchers. The theory of planned behavior was repeatedly applied to explain drivers of data sharing from the perspective of data donors (researchers). However, data sharing can be viewed from another perspective as well: survey participants. The research questions (RQs) for this study were as follows: 1 Does data sharing increase participant's nonresponse? 2 Does data sharing influence participant's response behavior? The purpose of this paper is to address these issues.

Design/methodology/approach

To answer the RQs, a mixed methods approach was applied, consisting of a qualitative prestudy and a quantitative survey including an experimental component. The latter was a two-group setup with an intervention group (A) and a control group (B). A list-based recruiting of members of the Medical Faculty of the University of Freiburg was applied for 15 days. For exploratory data analysis of dropouts and nonresponse, we used Fisher's exact tests and binary logistic regressions.

Findings

In sum, we recorded 197 cases for Group A and 198 cases for Group B. We found no systematic group differences regarding response bias or dropout. Furthermore, we gained insights into the experiences our sample made with data sharing: half of our sample already requested data of other researchers or shared data on request of other researchers. Data repositories, however, were used less frequently: 28% of our respondents used data from repositories and 19% stored data in a repository.

Originality/value

To the authors’ knowledge, their study is the first study that includes researchers as survey subjects investigating the effect of data sharing on their response patterns.

Details

Journal of Documentation, vol. 79 no. 4
Type: Research Article
ISSN: 0022-0418

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