Aluminum nitride (AlN) ceramics are suitable substrate and package materials for high-power integrated circuits.
Dense AlN ceramics with Y2O3 and LaF3 as sintering additives are prepared. The effects of these additives on the density, phase composition, microstructure and thermal conductivity of AlN ceramics are investigated.
Results show that 2 Wt.% Y2O3-doped additive is insufficient for the samples to achieve the full densification sintered at 1,700°C. When LaF3 is added with Y2O3, the samples are perfectly densified at the same sintering condition. The relative density and thermal conductivity of the samples are 97.8-99.07 per cent and 169.104-200.010 W·m-1·K-1, respectively. The density of the samples and their microstructure, especially the content and distribution of secondary phases, is necessary to control the thermal conductivity of AlN ceramics.
Y2O3 and LaF3 additives can effectively promote densification and enhance the thermal conductivity of AlN ceramics in a low sintering temperature, and the AlN ceramics added with Y2O3-LaF3 might have potential applications in package materials for high-power integrated circuits.
This paper aims to investigate how to improve business service quality (BSQ) in an e‐commerce environment. It also serves as a basis for developing a BSQ measurement instrument in an e‐commerce environment.
The paper examines BSQ along four inter‐organisational business process transactions. The focus is mainly on understanding the buyer's expected service and identifying main BSQ dimensions to satisfy the buyers.
Four main BSQ quality dimensions including marketing service, logistics service, operations service and collaboration service are identified along the inter‐organisaitonal business process. Four propositions are then offered. Additionally, customised business service quality is also discussed.
This research calls for a need to test the propositions through a questionnaire survey, where quantitative analysis will be conducted to identify the extent to which various BSQ dimensions affect the buyers' overall satisfaction. In addition, it would be worthwhile to investigate the linkage between BSQ and buyer performance.
With the rapid growth of e‐commerce, business environments are demanding higher level of service quality than ever before. In this context, the contribution of this paper is to look at how to improve BSQ along the inter‐organisational process transactions.