Eco-comparison between ceramic and epoxy based populated PWBs

Proceedings of the 2001 IEEE International Symposium on Electronics and the Environment. 2001 IEEE ISEE (Cat. No.01CH37190) Pub Date : 2001-05-07 DOI:10.1109/ISEE.2001.924544

C. Herrmann, J. Gediga, N. Warburg

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引用次数: 2

Abstract

Goal of the study is the ecological comparison between ceramic and epoxy based populated printed wiring boards (PWB) by using generic modeled LCA. All relevant differences of the product systems, their manufacturing as well as effects in and from the following life cycle stages are taken into consideration. The methodology of "generic modules based LCA" is used to realize the modeling of two product systems that are marked by so many and different characteristics and application fields. This approach consists of forming flexible modules allowing parameter variation that contain pre-modeled parts and subassemblies. It was already presented formerly and its applicability is proven. Both products focusing on the populated PWBs are modular structured. The LCA modules reflect this structure and allow the calculation of eco-profiles. Also, specific technical issues have to be regarded that a meaningful comparison can take place. For instance the ceramic based hybrid PWB uses pastes with electrical functions like resistors. The paper demonstrates the ecological profiles of both product systems assuming the same functionality and taking into consideration significant technical issues. The comparison shows which modules are affected and how they have been adapted to provide a comparable functional unit. It results in a comprehensive appraisal and evaluation of ecological benefits and burdens. All significant effects-product internal and of their periphery-caused by the differences of epoxy based and ceramic based populated printed wiring boards are discussed, evaluated and interpreted.

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陶瓷基和环氧基填充印刷电路板的生态比较

该研究的目的是通过使用通用模型LCA对陶瓷和环氧基填充印刷线路板(PWB)进行生态比较。考虑到产品系统的所有相关差异，其制造以及在以下生命周期阶段中的影响。采用“基于通用模块的LCA”方法，对具有众多不同特征和应用领域的两个产品系统进行了建模。这种方法包括形成灵活的模块，允许包含预先建模的部件和子组件的参数变化。前人已经提出并证明了它的适用性。这两种专注于填充pcb的产品都是模块化结构。LCA模块反映了这种结构，并允许计算生态剖面。此外，必须考虑到具体的技术问题，以便进行有意义的比较。例如，基于陶瓷的混合PWB使用具有电阻器等电气功能的浆料。本文展示了两种产品系统的生态概况，假设相同的功能，并考虑到重大的技术问题。比较显示了哪些模块受到了影响，以及它们如何被调整以提供一个可比较的功能单元。对生态效益和生态负担进行了综合评价和评价。讨论、评价和解释了环氧基和陶瓷基填充印刷线路板的差异所造成的产品内部和外围的所有重大影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of the 2001 IEEE International Symposium on Electronics and the Environment. 2001 IEEE ISEE (Cat. No.01CH37190)

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