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1 – 7 of 7
Article
Publication date: 1 April 1994

J. Nicolics and G. Hobler

Fast laser soldering processes are very attractive for the production of miniaturized interconnections with high reliability as they allow solder joint quality assurance during…

Abstract

Fast laser soldering processes are very attractive for the production of miniaturized interconnections with high reliability as they allow solder joint quality assurance during soldering. In order to evaluate the solder joint quality temporal changes of the temperature distribution inside the solder joint due to melting of the solder and wetting of the component and the pad metallizations must be well understood. In this paper we present thermal simulations of fast laser soldering processes taking the essential changes of the solder geometry into account. Moreover, we use a new relation for the calculation of the moment of wetting in dependence of the interface temperature. With this model the influence of the wettability of the pad and the component metallization and of the position of the laser beam on the temperature distribution inside the solder joint are investigated.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 13 no. 4
Type: Research Article
ISSN: 0332-1649

Article
Publication date: 1 April 1992

G. Hobler and H. Pötzl

The effect of a screening oxide layer on 1‐D and 2‐D ion implantation profiles in silicon is investigated using Monte Carlo simulations. Experimental observations of profile…

Abstract

The effect of a screening oxide layer on 1‐D and 2‐D ion implantation profiles in silicon is investigated using Monte Carlo simulations. Experimental observations of profile broadening by oxide layers are explained by the fact that atoms at lattice positions are less effective in steering ions into channels than atoms at random positions. The influence of the oxide layer on the lateral penetration below a mask is discussed in terms of implantation energy and ion species. A new set of parameters for the electronic stopping of phosphorus and arsenic in silicon is used.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 11 no. 4
Type: Research Article
ISSN: 0332-1649

Article
Publication date: 1 April 1991

G. Hobler, H. Pötzl, L. Palmetshofer, R. Schork, J. Lorenz, C. Tian, S. Gara and G. Stingeder

A three‐parameter model for the electronic stopping power of boron in silicon is presented. The model parameters are determined from implantations into amor‐phous silicon and from…

Abstract

A three‐parameter model for the electronic stopping power of boron in silicon is presented. The model parameters are determined from implantations into amor‐phous silicon and from channeling implantations into <100> and <100> silicon. Simulated boron profiles obtained with the new model, with the Lindhard model, and with the Oen‐Robinson model, respectively, are compared with experimental data on channeling and tilted implantations at 17 and 150 keV.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 10 no. 4
Type: Research Article
ISSN: 0332-1649

Article
Publication date: 1 April 1994

R. Slehobr and G. Hobler

An efficient method for the calculation of 3‐D stress distributions at embedded structures in silicon caused by different thermal expansion coefficients between silicon and…

Abstract

An efficient method for the calculation of 3‐D stress distributions at embedded structures in silicon caused by different thermal expansion coefficients between silicon and inclusion is presented. The method is based on the analytical solution for the stress field outside a rectangular parallelepipedic trench. This solution is adapted for the calculation of arbitrarily shaped inclusions and for the stress calculation inside the inclusion, too.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 13 no. 4
Type: Research Article
ISSN: 0332-1649

Book part
Publication date: 19 April 2023

Alexandra Mergener, Ines Entgelmeier and Timothy Rinke

This chapter examines the extent to which Working from Home (WfH) affects the temporal alignment of work and private life, i.e., the consideration of personal and family interests…

Abstract

This chapter examines the extent to which Working from Home (WfH) affects the temporal alignment of work and private life, i.e., the consideration of personal and family interests in work scheduling, for male and female employees with and without children. A distinction is made between telework that is formally recognized home working time by the employer, and informal overtime at home that is not recorded. It is argued that while the first represents a job resource, by increasing flexibility in work scheduling, the latter constitutes a job demand, which hinders the consideration of personal and family responsibilities in work time planning. Due to differences in status beliefs, identification and the distribution of childcare, gender gaps as well as differences according to family responsibilities are predicted in these associations. Using data from the German BIBB/BAuA Employment Survey 2018, the temporal alignment of work and private life is found to be positively associated with telework, particularly so for men, and negatively associated with informal overtime at home, particularly so for women. While mothers do not benefit from telework during regular working hours in particular, they have the worst temporal alignment of work and private life when they work informal overtime at home.

Article
Publication date: 12 March 2020

Ronit Nadiv and Shani Kuna

Accumulated evidence suggests that efforts at diversity management (DM) yield mixed results or even fail in terms of promoting workforce diversity. Previous scholarly attempts to…

2441

Abstract

Purpose

Accumulated evidence suggests that efforts at diversity management (DM) yield mixed results or even fail in terms of promoting workforce diversity. Previous scholarly attempts to explain the mixed results of DM initiatives provided only partial understanding. This study applies a paradox perspective to better understand the challenges of DM from the vantage point of diversity managers, who play a central role in the promotion and implementation of diversity initiatives.

Design/methodology/approach

In-depth interviews with diversity managers in large business organizations in Israel explored practitioners' conceptions of the challenges underlying the implementation of diversity initiatives. A grounded theory approach was utilized.

Findings

The findings reveal the emergence of paradox: diversity initiatives generate organizational tensions that undermine their success and hence amplify the need for further diversity interventions. Three distinct paradoxes are identified: necessary change vs desire for stability; bureaucratic control vs flexible procedures; and long-term business gains vs short-term losses. Diversity managers utilize two opposing strategies to contend with these paradoxes.

Research limitations/implications

This study does not represent voices of diverse employees or of top executives. The data focused on mid-level practitioners' descriptions of DM challenges and their methods of contending with them.

Practical implications

The findings shed light on an effective strategy of contending with paradox. Recognizing paradox and navigating it properly may greatly advance the success of costly DM change interventions. Implications are suggested regarding the academic education and training of DM practitioners.

Originality/value

Based on the paradox framework, which offers a novel vantage point for understanding the challenges of implementing DM, the findings contribute to the scholarly understanding of the limited success of DM interventions.

Details

Equality, Diversity and Inclusion: An International Journal, vol. 39 no. 4
Type: Research Article
ISSN: 2040-7149

Keywords

Article
Publication date: 1 May 1993

Wlodzimierz Wie¸źlak and Janusz Zieliński

Presents the possibility of utilization of the textile heating element for designing protective clothing. Investigation of the textile heating element has been carried out and it…

352

Abstract

Presents the possibility of utilization of the textile heating element for designing protective clothing. Investigation of the textile heating element has been carried out and it has been found that a conductive woven fabric of specific resistance should not be higher than 4*10−2 (Ω*m). Physical behaviour of the heating element can be described according to Ohm's law. A number of variants of heating packs have been tested by means of thermovision. Attention was paid to the problem of ensuring an appropriate distribution of temperatures on the inner side of clothing and obtaining a possible low temperature on the outside of clothing. A model of the system, body/heated clothing/environment, has been developed, making assumptions related to: the structure and physiology of the body; the structure of clothing and properties of materials; outer climatic conditions. Clothing prototypes were subjected to laboratory tests to verify correctness of the assumptions concerning both the heating system construction and the active clothing designing. The laboratory and functional investigations of active clothing have been positively verified by the developed model. Garments so designed are absolutely safe for the user and protects him efficiently against cooling‐down during his stay in a low temperature environment.

Details

International Journal of Clothing Science and Technology, vol. 5 no. 5
Type: Research Article
ISSN: 0955-6222

Keywords

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