Verarbeitung von Kunststoffen zu Bauteilen

Schüle, Helmut; Bille, H.; Emmerich, Rudolf; Hegemann, Bernhard; Ziegler, Lars; Diemert, Jan; Gittel, Dieter; Göttke, Stefan; Kauffmann, Axel; Knoblauch-Xander, Mark; Rohr, Andreas; Tröster, Stefan

doi:10.1007/978-3-540-72419-3_4

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…The injection process is followed by the material-dependent curing time, within which complete curing takes place. After this time, the finished component is removed from the injection mold by means of ejector pins [20].…”

Section: Injection Molding Processmentioning

confidence: 99%

Characterization of Hermetically Sealed Metallic Feedthroughs through Injection-Molded Epoxy-Molding Compounds

et al. 2021

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Electronic devices and their associated sensors are exposed to increasing mechanical, thermal and chemical stress in modern applications. In many areas of application, the electronics are completely encapsulated with thermosets in a single process step using injection molding technology, especially with epoxy molding compounds (EMC). The implementation of the connection of complete systems for electrical access through a thermoset encapsulation is of particular importance. In practice, metal pin contacts are used for this purpose, which are encapsulated together with the complete system in a single injection molding process step. However, this procedure contains challenges because the interface between the metallic pins and the plastic represents a weak point for reliability. In order to investigate the reliability of the interface, in this study, metallic pin contacts made of copper-nickel-tin alloy (CuNiSn) and bronze (CuSn6) are encapsulated with standard EMC materials. The metal surfaces made of CuNiSn are further coated with silver (Ag) and tin (Sn). An injection molding tool to produce test specimens is designed and manufactured according to the design rules of EMC processing. The reliability of the metal-plastic interfaces are investigated by means of shear and leak tests. The results of the investigations show that the reliability of the metal-plastic joints can be increased by using different material combinations.

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Section: Injection Molding Processmentioning

confidence: 99%