摘要:
A method of forming an integrated circuit structure includes providing a semiconductor substrate; forming patterned features over the semiconductor substrate, wherein gaps are formed between the patterned features; filling the gaps with a first filling material, wherein the first filling material has a first top surface higher than top surfaces of the patterned features; and performing a first planarization to lower the top surface of the first filling material, until the top surfaces of the patterned features are exposed. The method further includes depositing a second filling material, wherein the second filling material has a second top surface higher than the top surfaces of the patterned features; and performing a second planarization to lower the top surface of the second filling material, until the top surfaces of the patterned features are exposed.
摘要:
A semiconductor device is provided which includes a semiconductor substrate having a first region and a second region, the first and second regions being isolated from each other, a plurality of transistors formed in the first region, an alignment mark formed in the second region, the alignment mark having a plurality of active regions in a first direction, and a dummy gate structure formed over the alignment mark, the dummy gate structure having a plurality of lines in a second direction different from the first direction.
摘要:
A method is provided for fabricating a semiconductor device. The method includes providing a substrate including a dummy gate structure formed thereon, removing the dummy gate structure to form a trench, forming a first metal layer over the substrate to fill a portion of the trench, forming a protection layer in a remaining portion of the trench, removing a unprotected portion of the first metal layer, removing the protection layer from the trench, and forming a second metal layer over the substrate to fill the trench.
摘要:
A semiconductor device is provided which includes a semiconductor substrate having a first region and a second region, the first and second regions being isolated from each other, a plurality of transistors formed in the first region, an alignment mark formed in the second region, the alignment mark having a plurality of active regions in a first direction, and a dummy gate structure formed over the alignment mark, the dummy gate structure having a plurality of lines in a second direction different from the first direction.
摘要:
A method of manufacturing a semiconductor device is disclosed. The method provides a semiconductor substrate with at least a PMOS device and at least an NMOS device thereon. A first insulating layer is formed overlying the NMOS and PMOS devices. A second insulating layer is formed overlying the first insulating layer. The second insulating layer overlying the PMOS device is thinned to leave portion of the second insulating layer. A first thermal treatment is performed on the NMOS and PMOS devices. The second insulating layer overlying the NMOS device and the remaining portion of the second insulating layer overlying the PMOS device are removed and the first insulating layer overlying the NMOS and PMOS devices is thinned to leave a remaining portion thereof.
摘要:
A method of forming an integrated circuit structure includes providing a semiconductor substrate; and forming a first and a second MOS device. The first MOS device includes a first active region in the semiconductor substrate; and a first gate over the first active region. The second MOS device includes a second active region in the semiconductor substrate; and a second gate over the second active region. The method further include forming a dielectric region between the first and the second active regions, wherein the dielectric region has an inherent stress; and implanting the dielectric region to form a stress-released region in the dielectric region, wherein source and drain regions of the first and the second MOS devices are not implanted during the step of implanting.
摘要:
A semiconductor device having a core device with a high-k gate dielectric and an I/O device with a silicon dioxide or other non-high-k gate dielectric, and a method of fabricating such a device. A core well and an I/O well are created in a semiconductor substrate and separated by an isolation structure. An I/O device is formed over the I/O well and has a silicon dioxide or a low-k gate dielectric. A resistor may be formed on an isolation structure adjacent to the core well. A core-well device such as a transistor is formed over the core well, and has a high-k gate dielectric. In some embodiments, a p-type I/O well and an n-type I/O well are created. In a preferred embodiment, the I/O device or devices are formed prior to forming the core device and protected with a sacrificial layer until the core device is fabricated.
摘要:
A semiconductor structure includes an array of unit metal-oxide-semiconductor (MOS) devices arranged in a plurality of rows and a plurality of columns is provided. Each of the unit MOS devices includes an active region laid out in a row direction and a gate electrode laid out in a column direction. The semiconductor structure further includes a first unit MOS device in the array and a second unit MOS device in the array, wherein active regions of the first and the second unit MOS devices have different conductivity types.
摘要:
A method for defining a layout of 3-D devices, such as a finFET, is provided. The method includes determining an area required by a desired 3-D device and designing a circuit using planar devices having an equivalent area. The planar device corresponding to the desired 3-D device is used to layout a circuit design, thereby allowing circuit and layout designers to work at a higher level without the need to specify each individual fin or 3-D structure. Thereafter, the planar design may be converted to a 3-D design by replacing planar active areas with 3-D devices occupying an equivalent area.
摘要:
A semiconductor structure and methods of forming the same are provided. The semiconductor structure includes a semiconductor substrate; a first inter-layer dielectric (ILD) over the semiconductor substrate; a contact extending from a top surface of the first ILD into the first ILD; a second ILD over the first ILD; a bottom inter-metal dielectric (IMD) over the second ILD; and a dual damascene structure comprising a metal line in the IMD and a via in the second ILD, wherein the via is connected to the contact.