EP0267452A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method for the removal of resin contaminants from the drill holes of circuits boards
Assignee: Atotech Deutschland GmbH and Co KG
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Filing: 1987-10-14
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Granted: —
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Expires: 2007-10-14
Abstract
Abstract The method uses oxidising agents, such as permanganates in aqueous solution and/or swelling agents, and employs ultrasonic treatment, and is characterised in that the circuit boards are guided horizontally during the treatment.
Inventors
- 👤 Walter Meyer
- 👤 Hans-Joachim Grapentin
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 16:48
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/0085; H05K3/0088; H05K3/0011; H05K3/0055; H05K2203/00; H05K2203/02; H05K2203/0285; H05K2203/07; H05K2203/0736; H05K2203/0746; H05K2203/0779; H05K2203/0786; H05K2203/0796; H05K2203/15; H05K2203/1509
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