摘要:
The present invention provides a manufacturing method for an integrated semiconductor structure comprising the steps of providing a semiconductor substrate having a plurality of gate stacks in a memory cell region and at least one gate stack in a peripheral device region; forming caps made of one or more layers of a cap material over said plurality of gate stacks in said memory cell region and over said at least one gate stack in said peripheral device region; depositing a first protective layer made of carbon or made of a carbon containing material over said memory cell region and peripheral device region; forming a mask layer on said first protective layer in said memory cell region; exposing said cap of said at least one gate stack in said peripheral device region by removing said first protective layer in said peripheral device region in an etch step wherein said mask layer acts as a mask in said said memory cell region; removing said said mask layer and said first protective layer from said memory cell region; forming a first contact hole between two neighboring gate stacks in said memory cell region, said first contact hole exposing a contact area; forming at least one other contact hole in said peripheral device region, said at least one other contact hole exposing another contact area which is located either adjacent to said gate stack or in said gate stack in said peripheral device region; and filling said contact hole and said at least one other contact hole with a respective contact plug.
摘要:
The present invention provides a manufacturing method for an integrated semiconductor structure comprising the steps of providing a semiconductor substrate having a plurality of gate stacks in a memory cell region and at least one gate stack in a peripheral device region; forming caps made of one or more layers of a cap material over said plurality of gate stacks in said memory cell region and over said at least one gate stack in said peripheral device region; depositing a first protective layer made of carbon or made of a carbon containing material over said memory cell region and peripheral device region; forming a mask layer on said first protective layer in said memory cell region; exposing said cap of said at least one gate stack in said peripheral device region by removing said first protective layer in said peripheral device region in an etch step wherein said mask layer acts as a mask in said memory cell region; removing said mask layer and said first protective layer from said memory cell region; forming a first contact hole between two neighboring gate stacks in said memory cell region, said first contact hole exposing a contact area; forming at least one other contact hole in said peripheral device region, said at least one other contact hole exposing another contact area which is located either adjacent to said gate stack or in said gate stack in said peripheral device region; and filling said contact hole and said at least one other contact hole with a respective contact plug.
摘要:
A memory device includes an array of memory cells and a storage capacitor for storing information. Each memory cell includes an access transistor. The access transistor includes first and second source/drain regions, a channel disposed between the first and the second source/drain regions, and a gate electrode electrically insulated from the channel and adapted to control the conductivity of the channel. The access transistor is at least partially formed in the semiconductor substrate. The storage capacitor is adapted to be accessed by the access transistor. The storage capacitor includes at least first and second storage electrodes and at least a capacitor dielectric disposed between the first and the second storage electrodes. Each of the first and the second storage electrodes is disposed above the substrate surface.
摘要:
A memory device includes an array of memory cells and a storage capacitor for storing information. Each memory cell includes an access transistor. The access transistor includes first and second source/drain regions, a channel disposed between the first and the second source/drain regions, and a gate electrode electrically insulated from the channel and adapted to control the conductivity of the channel. The access transistor is at least partially formed in the semiconductor substrate. The storage capacitor is adapted to be accessed by the access transistor. The storage capacitor includes at least first and second storage electrodes and at least a capacitor dielectric disposed between the first and the second storage electrodes. Each of the first and the second storage electrodes is disposed above the substrate surface.
摘要:
In a method of fabricating a semiconductor structure, a carbon containing mask is fabricated over a dielectric layer. The mask exposes the surface of the dielectric layer at least partly in a region between two adjacent conducting lines. A contact hole is etched into the dielectric layer in the region between the two adjacent conducting lines.
摘要:
In a method of fabricating a semiconductor structure, a carbon containing mask is fabricated over a dielectric layer. The mask exposes the surface of the dielectric layer at least partly in a region between two adjacent conducting lines. A contact hole is etched into the dielectric layer in the region between the two adjacent conducting lines.
摘要:
A solenoid valve having a magnet assembly and an injector body connected thereto, the magnet assembly and the injector body being joined together using a crimped retaining ring as the connecting element.
摘要:
Embodiments of the invention relate to a method of fabricating an integrated circuit, including etching of a layer that includes a high k material in the form of a metal oxide composition, wherein an etchant is used that includes a silicon halogen composition.
摘要:
In one aspect, the invention provides a fabrication method. Before the fabrication of the structure, a mask layer, for example a hard mask, is applied to a layer. The mask layer has at least two layers composed of materials that can be etched selectively with respect to one another. In a first etching process, the structure is introduced into the layer. Subsequently, the first etching process is interrupted at a point in time in order to etch away a topmost layer of the hard mask selectively with respect to the underlying layer by means of a second etching process and, subsequently, the first etching process is continued for fabricating the structure with the new topmost layer.