Electro-chemical deposition system
First Claim
11. An electro-chemical plating cell, comprising:
- a cell body configured to contain a plating solution and having an opening sized to receive a substrate therein for plating;
an anode positioned in a lower portion of the cell body;
a first membrane positioned across the cell body above the anode, the membrane being positioned to separate the plating solution in the cell body from a fluid volume adjacent the anode;
a plating solution fluid inlet in fluid communication with a plating solution volume above the membrane;
an anode fluid inlet in fluid communication with the fluid volume adjacent the anode; and
a anode fluid outlet in fluid communication with the fluid volume adjacent the anode.
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Abstract
The present invention provides an electro-chemical deposition system that is designed with a flexible architecture that is expandable to accommodate future designs and gap fill requirements and provides satisfactory throughput to meet the demands of other processing systems. The electro-chemical deposition system generally comprises a mainframe having a mainframe wafer transfer robot, a loading station disposed in connection with the mainframe, one or more processing cells disposed in connection with the mainframe, and an electrolyte supply fluidly connected to the one or more electrical processing cells. Preferably, the electro-chemical deposition system includes a spin-rinse-dry (SRD) station disposed between the loading station and the mainframe, a rapid thermal anneal chamber attached to the loading station, and a system controller for controlling the electro-chemical deposition process and the components of the electro-chemical deposition system.
126 Citations
22 Claims
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11. An electro-chemical plating cell, comprising:
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a cell body configured to contain a plating solution and having an opening sized to receive a substrate therein for plating;
an anode positioned in a lower portion of the cell body;
a first membrane positioned across the cell body above the anode, the membrane being positioned to separate the plating solution in the cell body from a fluid volume adjacent the anode;
a plating solution fluid inlet in fluid communication with a plating solution volume above the membrane;
an anode fluid inlet in fluid communication with the fluid volume adjacent the anode; and
a anode fluid outlet in fluid communication with the fluid volume adjacent the anode. - View Dependent Claims (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15)
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12-1. The electro-chemical plating cell of claim 11, wherein the opening comprises a fluid outlet for the plating solution.
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13-2. The electro-chemical plating cell of claim 11, further comprising a second membrane positioned across the cell below the anode.
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14-3. The electro-chemical plating cell of claim 11, wherein the plating solution inlet is configured to supply a plating solution to the plating cell without the plating solution contacting the anode.
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16. An electro-chemical plating cell, comprising:
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a cell body defining a plating solution fluid volume;
an anode positioned in a lower portion of the cell body;
a membrane positioned over the anode, the membrane separating an anode fluid volume from the plating solution fluid volume;
a fluid inlet in communication with the anode fluid volume;
a fluid outlet in communication with the anode fluid volume; and
a plating solution inlet in fluid communication with the plating solution volume. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification