发明名称 Method for Producing Through-Contacts in Semi-Conductor Wafers
摘要 The invention relates to a method for producing vertical through-contacts (micro-vias) in semi-conductor wafers in order to produce semi-conductor components, i.e. contacts on the front side of the wafer through the semi-conductor wafer to the rear side of the wafer. The invention also relates to a method which comprises the following steps: blind holes on the contact connection points are laser drilled from the rear side of the wafer into the semi-conductor substrate, the wafer is cleaned, the semi-conductor substrate is plasma etched in a material selected manner until the active layer stack of the wafer is reached, the active layer stack of the wafer is plasma etched in a material selective manner until the contacts, which are to be connected to the rear side of the wafer, are reached, a plating base is applied to the rear side of the wafer and into the blind holes and gold is applied by electrodeposition onto the metallizied rear side of the wafer and the blind holes.
申请公布号 US2008286963(A1) 申请公布日期 2008.11.20
申请号 US20060993459 申请日期 2006.07.24
申请人 KRUEGER OLAF;SCHOENE GERD;JOHN WILFRED;WERNICKE TIM;WUERFL JOACHIM 发明人 KRUEGER OLAF;SCHOENE GERD;JOHN WILFRED;WERNICKE TIM;WUERFL JOACHIM
分类号 H01L21/44 主分类号 H01L21/44
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