摘要:
In a wafer processing method and a wafer processing system, a first property on a back side of a wafer is measured. The back side of the wafer is supported on a multi-zone chuck having a plurality of zones with controllable clamping forces. The wafer is secured to the multi-zone chuck by controlling the clamping forces in the corresponding zones in accordance with measured values of the first property in the zones.
摘要:
A method for forming an integrated circuit is provided. The method includes forming a gate dielectric structure over a substrate. A titanium-containing sacrificial layer is formed, contacting the gate dielectric structure. The whole titanium-containing sacrificial layer is substantially removed.
摘要:
The present invention includes a lithography method comprising forming a first patterned resist layer including at least one opening therein over a substrate. A protective layer is formed on the first patterned resist layer and the substrate whereby a reaction occurs at the interface between the first patterned resist layer and the protective layer to form a reaction layer over the first patterned resist layer. The non-reacted protective layer is then removed. Thereafter, a second patterned resist layer is formed over the substrate, wherein at least one portion of the second patterned resist layer is disposed within the at least one opening of the first patterned resist layer. The substrate is thereafter etched using the first and second patterned resist layers as a mask.
摘要:
The present disclosure provides a lithography apparatus with improved lithography throughput. The lithography apparatus includes a first lens system; a first substrate stage configured to receive a first radiation energy from the first lens system, and designed operable to move a substrate during an exposing process; a second lens system, having a higher resolution than that of the first lens system; and a second substrate stage approximate to the first substrate stage and configured to receive a second radiation energy from the second lens system, and designed operable to receive the substrate from the first substrate stage and move the substrate.
摘要:
An apparatus and method are disclosed for forming thin films on a semiconductor substrate. The apparatus in one embodiment includes a process chamber configured for supporting the substrate, a gas excitation power source, and first and second gas distribution showerheads fluidly coupled to a reactive process gas supply containing film precursors. The showerheads dispense the gas into two different zones above the substrate, which is excited to generate an inner plasma field and an outer plasma field over the wafer. The apparatus deposits a material on the substrate in a manner that promotes the formation of a film having a substantially uniform thickness across the substrate. In one embodiment, the substrate is a wafer. Various embodiments include first and second independently controllable power sources connected to the first and second showerheads to vary the power level and plasma intensity in each zone.
摘要:
An apparatus comprises a plasma flood gun for neutralizing a positive charge buildup on a semiconductor wafer during a process of ion implantation using an ion beam. The plasma flood gun comprises more than two arc chambers, wherein each arc chamber is configured to generate and release electrons into the ion beam in a respective zone adjacent to the semiconductor wafer.
摘要:
A chuck and a wafer supported thereon are rotated during a plasma process or a film deposition process to reduce thickness non-uniformity of a film processed or deposited on the wafer.
摘要:
A system and method of automatically calculating boundaries for a semiconductor fabrication process. The method includes selecting a first parameter for monitoring during a semiconductor fabrication process. A first set of values for the first parameter are received and a group value of the first set is determined. Each value in the first set of values is normalized. A first weighting factor is selected based on a number of values in the first set. The embodiment also includes generating a first and a second boundary value as a function of the weighting factor, the first set normalized values and the group value of the first set and applying the first and second boundary values to control the semiconductor fabrication process.
摘要:
A method of lithography patterning includes forming a first material layer on a substrate, the first material layer being substantially free of silicon, and forming a patterned resist layer including at least one opening therein above the first material layer. A second material layer containing silicon is formed on the patterned resist layer and an opening is formed in the first material layer using the second material layer as a mask.
摘要:
A wafer handling system with apparatus for transporting wafers between semiconductor fabrication tools. In one embodiment, the apparatus is a loadport bridge mechanism including an enclosure having first and second mounting ends, a docking port at each end configured and dimensioned to interface with a loadport of a semiconductor tool, and at least one wafer transport robot operable to transport a wafer between the docking ports. The wafer transport robot hands off or receives a wafer to/from a tool robot at the loadports of a first and second tool. The bridge mechanism allows one or more wafers to be transferred between loadports of different tools on an individual basis without reliance on the FAB's automated material handling system (AMHS) for bulk wafer transport inside a wafer carrier such as a FOUP or others.