Publication

MilliNewton – Ajustement passif & qualification RoHS

Thomas Maeder
2006
Reports

Abstract

Ajustement passif de l'embase en version E (2e série), et qualification de l'ajustement de nouvelles compositions résistives RoHS 10 / 100 kΩ (Heraeus R8941 / R8951 et ESL R314P / R315P), ainsi que de nouveaux verrages sans plomb (ESL CL90-8325, ESL 4771-P et ESL G-485). Ce document donne les résultats de l'ajustement passif d'une 2e série (après 06-500 [1,2]) de l'embase MilliNewton, version E, essentiellement dans le cadre d'une production de 1'500+ pièces. A cette occasion, de nouvelles compositions résistives sont introduites et qualifiée, notamment les propriétés à l'ajustement : gammes résistives 10 / 100 kΩ pour remplacer DP 2041 (effet de jauge élevé pas favorable pour une embase et stabilité à l'ajustement pas très bonne) et ESL 3915 (contient du Cd). D'autre part, on essaie aussi de nouveaux verrages / glaçures sans plomb. Les résultats confirment l'excellence de la composition 100 Ω DP 2021. Pour les gammes 10 et 100 kΩ, la paire Her R8941 / R8951 donne de meilleurs résultats que ESL R314P / R315P aux conditions actuelles d'ajustement. Les verrages sans plomb semblent donner des résultats comparables à ceux obtenus avec le standard actuel, ESL G-481.

Official source

https://infoscience.epfl.ch/entities/publication/e8c169d0-ca9b-44c3-a488-ac1b9f3c4d15

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Thomas Maeder
2006
Reports

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/e8c169d0-ca9b-44c3-a488-ac1b9f3c4d15

About this result

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