Abstract:
A semiconductor device includes a substrate having a logic region and a magnetoresistive random access memory (MRAM) region, a MTJ on the MRAM region, a metal interconnection on the MTJ, and a blocking layer on the metal interconnection. Preferably, the blocking layer includes a stripe pattern according to a top view and the blocking layer could include metal or a dielectric layer.
Abstract:
The present invention provides a semiconductor device, the semiconductor device includes a metal interconnection on a substrate, in which a top view of the metal interconnection comprises a quadrilateral; and a magnetic tunneling junction (MTJ) on the metal interconnection, in which a top view of the MTJ comprises a circular shape, an area of the MTJ is smaller than an area of the metal interconnection.
Abstract:
A semiconductor device includes a substrate having a logic region and a magnetoresistive random access memory (MRAM) region, a MTJ on the MRAM region, a metal interconnection on the MTJ, and a blocking layer on the metal interconnection. Preferably, the blocking layer includes a stripe pattern according to a top view and the blocking layer could include metal or a dielectric layer.
Abstract:
A method for fabricating semiconductor device includes the steps of: forming a magnetic tunneling junction (MTJ) stack on a substrate; forming a top electrode on the MTJ stack; performing a first patterning process to remove the MTJ stack along a first direction; and performing a second patterning process to remove the MTJ stack along a second direction to form MTJs on the substrate.
Abstract:
A method for fabricating semiconductor device includes the steps of: providing a substrate having a logic region and a magnetoresistive random access memory (MRAM) region, forming a magnetic tunneling junction (MTJ) on the MRAM region, forming a metal interconnection on the MTJ, forming a dielectric layer on the metal interconnection, patterning the dielectric layer to form openings, and forming the blocking layer on the patterned dielectric layer and the metal interconnection and into the openings.
Abstract:
A method for fabricating semiconductor device first includes providing a substrate and a shallow trench isolation (STI) in the substrate, in which the substrate includes a first metal gate and a second metal gate thereon, a first hard mask on the first metal gate and a second hard mask on the second metal gate, and a first interlayer dielectric (ILD) layer around the first metal gate and the second metal gate. Next, the first hard mask and the second hard mask as mask are utilized to remove part of the first ILD layer for forming a recess, and a patterned metal layer is formed in the recess and on the STI.
Abstract:
A method for fabricating semiconductor device is disclosed. First, a substrate is provided, in which the substrate includes a first metal gate and a second metal gate thereon, a first hard mask on the first metal gate and a second hard mask on the second metal gate, and a first interlayer dielectric (ILD) layer around the first metal gate and the second metal gate. Next, the first hard mask and the second hard mask are used as mask to remove part of the first ILD layer for forming a recess, and a patterned metal layer is formed in the recess, in which the top surface of the patterned metal layer is lower than the top surfaces of the first hard mask and the second hard mask.
Abstract:
A semiconductor device and manufacturing method thereof are provided in the present invention. A second opening is formed corresponding to a gate structure after a step of forming a first opening corresponding to an epitaxial layer. After the step of forming the second opening, a pre-amorphization implantation process is performed to form an amorphous region in the epitaxial layer, and the influence of the process of forming the second opening on the amorphous region may be avoided. The semiconductor device formed by the manufacturing method of the present invention includes a contact structure and an alloy layer. The contact structure is disposed in the second opening for being electrically connected to a metal gate. The alloy layer is disposed on the metal gate and disposed between the metal gate and the contact structure. The alloy layer includes an alloy of the material of the metal gate.
Abstract:
A method for fabricating semiconductor device is disclosed. The method includes the steps of: providing a substrate having at least one metal gate thereon, a source/drain region adjacent to two sides of the at least one metal gate, and an interlayer dielectric (ILD) layer around the at least one metal gate; forming a plurality of contact holes in the ILD layer to expose the source/drain region; forming a first metal layer in the contact holes; performing a first thermal treatment process; and performing a second thermal treatment process.
Abstract:
A method for manufacturing a semiconductor device and a device manufactured using the same are provided. According to a dual silicide approach of the embodiment, a substrate having a first area with plural first metal gates and a second area with plural second metal gates is provided, wherein the adjacent first metal gates and the adjacent second metal gates are separated by an insulation. A dielectric layer is formed on the first and second metal gates and the insulation. The dielectric layer and the insulation at the first area are patterned by a first mask to form a plurality of first openings. Then, a first silicide is formed at the first openings. The dielectric layer and the insulation at the second area are patterned by a second mask to form a plurality of second openings. Then, a second silicide is formed at the second openings.