公开(公告)号：US06303010B1

公开(公告)日：2001-10-16

申请号：US09386197

申请日：1999-08-31

Applicant: Daniel J. Woodruff ,  Kyle M. Hanson ,  Thomas H. Oberlitner ,  LinLin Chen ,  John M. Pedersen ,  Vladimir Zila

Inventor： Daniel J. Woodruff ,  Kyle M. Hanson ,  Thomas H. Oberlitner ,  LinLin Chen ,  John M. Pedersen ,  Vladimir Zila

IPC: C25D1704

CPC classification number: H01L21/68721 ,  C25D5/08 ,  C25D7/123 ,  C25D17/001 ,  C25D17/06 ,  H01L21/288 ,  H01L21/2885 ,  H01L21/687 ,  H01L21/68728 ,  H01L21/68735 ,  H01L21/68785

Abstract: A reactor for plating a metal onto a surface of a workpiece is set forth. The reactor comprises a reactor bowl including an electroplating solution disposed therein and an anode disposed in the reactor bowl in contact with the electroplating solution. A contact assembly is spaced from the anode within the reactor bowl. The contact assembly includes a plurality of contacts disposed to contact a peripheral edge of the surface of the workpiece to provide electroplating power to the surface of the workpiece. The contacts execute a wiping action against the surface of the workpiece as the workpiece is brought into engagement therewith The contact assembly also including a barrier disposed interior of the plurality of contacts. The barrier includes a member disposed to engage the surface of the workpiece to assist in isolating the plurality of contacts from the electroplating solution. In one embodiment, the plurality of contacts are in the form of discrete flexures while in another embodiment the plurality of contacts are in the form of a Belleville ring contact. A flow path may be provided in the contact assembly for providing a purging gas to the plurality of contacts and the peripheral edge of the workpiece. The purging gas may be used to assist in the formation of the barrier of the contact assembly. A combined electroplating/electroless plating tool and method are also set forth.

Abstract translation: 阐述了将金属镀在工件表面上的反应器。 反应器包括反应器碗，其包括设置在其中的电镀溶液和设置在与电镀溶液接触的反应器碗中的阳极。 接触组件与反应器碗内的阳极间隔开。 接触组件包括多个触点，其设置成接触工件表面的周边边缘以向工件的表面提供电镀功率。 当工件与其接合时，触头对工件的表面执行擦拭动作。触头组件还包括设置在多个触点内部的屏障。 阻挡层包括设置成接合工件的表面以帮助将多个触点与电镀溶液隔离的构件。 在一个实施例中，多个触点是离散弯曲的形式，而在另一个实施例中，多个触点是贝尔维尔环接触的形式。 可以在接触组件中设置流路，以向多个触点和工件的周边边缘提供净化气体。 吹扫气体可用于帮助形成接触组件的屏障。 还提出了组合电镀/无电镀工具和方法。