Abstract:
The present invention provides a non-planar FET which includes a substrate, a fin structure, a sub spacer, a gate, a dielectric layer and a source/drain region. The fin structure is disposed on the substrate. The sub spacer is disposed only on a middle sidewall of the fin structure. The gate is disposed on the fin structure. The dielectric layer is disposed between the fin structure and the gate. The source/drain region is disposed in the fin structure. The present invention further provides a method of forming the same.
Abstract:
A method for manufacturing a semiconductor device is provided. A first stack structure and a second stack structure are formed to respectively cover a portion of a first fin structure and a second fin structure. Subsequently, a spacer is respectively formed on the sidewalls of the fin structures through an atomic layer deposition process and the composition of the spacers includes silicon carbon nitride. Afterwards, a interlayer dielectric is formed and etched so as to expose the hard mask layers. A mask layer is formed to cover the second stack structure and a portion of the dielectric layer. Later, the hard mask layer in the first stack structure is removed under the coverage of the mask layer. Then, a dummy layer in the first stack structure is replaced with a conductive layer.
Abstract:
A semiconductor device with oxygen-containing metal gates includes a substrate, a gate dielectric layer and a multi-layered stack structure. The multi-layered stack structure is disposed on the substrate. At least one layer of the multi-layered stack structure includes a work function metal layer. The concentration of oxygen in the side of one layer of the multi-layered stack structure closer to the gate dielectric layer is less than that in the side of one layer of the multi-layered stack structure opposite to the gate dielectric layer.
Abstract:
A manufacturing method for semiconductor device having metal gate includes providing a substrate having a first semiconductor device and a second semiconductor device formed thereon, the first semiconductor device having a first gate trench and the second semiconductor device having a second gate trench; sequentially forming a high dielectric constant (high-k) gate dielectric layer and a multiple metal layer on the substrate; forming a first work function metal layer in the first gate trench; performing a first pull back step to remove a portion of the first work function metal layer from the first gate trench; forming a second work function metal layer in the first gate trench and the second gate trench; and performing a second pull back step to remove a portion of the second work function metal layer from the first gate trench and the second gate trench.
Abstract:
A semiconductor device includes a magnetic tunneling junction (MTJ) on a substrate, a first spin orbit torque (SOT) layer on the MTJ, a spacer adjacent to the MTJ and the first SOT layer, and a second SOT layer on the first SOT layer. Preferably, the first SOT layer and the second SOT layer are made of same material.
Abstract:
A semiconductor device includes a magnetic tunneling junction (MTJ) on a substrate, a first spin orbit torque (SOT) layer on the MTJ, a second SOT layer on the first SOT layer, a hard mask between the first SOT layer and the second SOT layer, and a spacer adjacent to the MTJ, the first SOT layer, and the hard mask.
Abstract:
A method for fabricating a semiconductor device includes the steps of: forming a magnetic tunneling junction (MTJ) stack on a substrate; forming a first spin orbit torque (SOT) layer on the MTJ stack; forming a first hard mask on the first SOT layer; and using a second hard mask to pattern the first hard mask, the first SOT layer, and the MTJ stack to form a MTJ.
Abstract:
A method for forming a semiconductor structure is disclosed. A substrate having a logic device region and a memory device region is provided. A first dielectric layer is formed on the substrate. Plural memory stack structures are formed on the first dielectric layer on the memory device region. An insulating layer is formed and conformally covers the memory stack structures and the first dielectric layer. An etching back process is performed to remove a portion of the insulating layer without exposing any portion of the memory stack structures. After the etching back process, a second dielectric layer is formed on the insulating layer and completely fills the spaces between the memory stack structures.
Abstract:
A magneto-resistive random access memory (MRAM) cell includes a substrate having a dielectric layer disposed thereon, a conductive via disposed in the dielectric layer, and a cylindrical stack disposed on the conductive via. The cylindrical stack includes a bottom electrode, a magnetic tunneling junction (MTJ) layer on the bottom electrode, and a top electrode on the MTJ layer. A spacer layer is disposed on a sidewall of the cylindrical stack. The top electrode protrudes from a top surface of the spacer layer.
Abstract:
A complementary metal oxide semiconductor field-effect transistor (MOSFET) includes a substrate, a first MOSFET and a second MOSFET. The first MOSFET is disposed on the substrate within a first transistor region and the second MOSFET is disposed on the substrate within a second transistor region. The first MOSFET includes a first fin structure, two first lightly-doped regions, two first doped regions and a first gate structure. The first fin structure includes a first body portion and two first epitaxial portions, wherein each of the first epitaxial portions is disposed on each side of the first body portion. A first vertical interface is between the first body portion and each of the first epitaxial portions so that the first-lightly doped region is able to be uniformly distributed on an entire surface of each first vertical interface.