Invention Application
WO2014086567A3 METHOD FOR MANUFACTURE OF WIRE BONDABLE AND SOLDERABLE SURFACES ON NOBLE METAL ELECTRODES
审中-公开
在贵金属电极上制造导线可粘结和可焊表面的方法
- Patent Title: METHOD FOR MANUFACTURE OF WIRE BONDABLE AND SOLDERABLE SURFACES ON NOBLE METAL ELECTRODES
- Patent Title (中): 在贵金属电极上制造导线可粘结和可焊表面的方法
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Application No.: PCT/EP2013073841Application Date: 2013-11-14
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Publication No.: WO2014086567A3Publication Date: 2014-09-12
- Inventor: WALTER ANDREAS
- Applicant: ATOTECH DEUTSCHLAND GMBH
- Assignee: ATOTECH DEUTSCHLAND GMBH
- Current Assignee: ATOTECH DEUTSCHLAND GMBH
- Priority: EP12195672 2012-12-05
- Main IPC: C23C18/18
- IPC: C23C18/18 ; C23C18/16 ; C23C18/44 ; C23C18/54
Abstract:
The present invention relates to a method for manufacture of wire bondable and solderable surfaces on noble metal electrodes. The noble metal electrodes are activated by depositing a seed layer of palladium or a palladium alloy layer by electroless plating at 60 to 90 °C. Next, an intermediate layer is deposited onto the seed layer followed by deposition of the wire bondable and/or solderable surface finish layer(s) onto the intermediate layer. This method is particularly suitable in the production of optoelectronic devices such as light emitting diodes (LEDs).
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