摘要:
A CMOS semiconductor die comprises a substrate; an insulation layer over a major surface of the substrate; a plurality of P-metal gate areas formed within the insulation layer collectively covering a first area of the major surface; a plurality of N-metal gate areas formed within the insulation layer collectively covering a second area of the major surface, wherein a first ratio of the first area to the second area is equal to or greater than 1; a plurality of dummy P-metal gate areas formed within the insulation layer collectively covering a third area of the major surface; and a plurality of dummy N-metal gate areas formed within the insulation layer collectively covering a fourth area of the major surface, wherein a second ratio of the third area to the fourth area is substantially equal to the first ratio.
摘要:
The disclosure relates to integrated circuit fabrication, and more particularly to an interconnection structure for N/P metal gates. An exemplary structure for an interconnection structure comprises a first gate electrode having a first portion of a first work-function metal layer under a first portion of a signal metal layer; and a second gate electrode having a second portion of the first work-function metal layer interposed between a second work-function metal layer and a second portion of the signal metal layer, wherein the second portion of the signal metal layer is over the second portion of the first work-function metal layer, wherein the second portion of the signal metal layer and the first portion of the signal metal layer are continuous, and wherein a maximum thickness of the second portion of the signal metal layer is less than a maximum thickness of the first portion of the signal metal layer.
摘要:
The disclosure relates to integrated circuit fabrication, and more particularly to a method for fabricating a semiconductor device. An exemplary method for fabricating the semiconductor device comprises providing a substrate; forming pad oxide layers over a frontside and a backside of the substrate; forming hardmask layers over the pad oxide layers on the frontside and the backside of the substrate; and thinning the hardmask layer over the pad oxide layer on the frontside of the substrate.
摘要:
A semiconductor device having a gate on a substrate with source/drain (S/D) regions adjacent to the gate. A first dielectric layer overlays the gate and the S/D regions, the first dielectric layer having first contact holes over the S/D regions with first contact plugs formed of a first material and the first contact plugs coupled to respective S/D regions. A second dielectric layer overlays the first dielectric layer and the first contact plugs. A second contact hole formed in the first and second dielectric layers is filled with a second contact plug formed of a second material. The second contact plug is coupled to the gate and interconnect structures formed in the second dielectric layer, the interconnect structures coupled to the first contact plugs. The second material is different from the first material, and the second material has an electrical resistance lower than that of the first material.
摘要:
An electrical fuse and a method of forming the same are presented. A first-layer conductive line is formed over a base material. A via is formed over the first-layer conductive line. The via preferably comprises a barrier layer and a conductive material. A second-layer conductive line is formed over the via. A first external pad is formed coupling to the first-layer conductive line. A second external pad is formed coupling to the second-layer conductive line. The via, the first conductive line and the second conductive line are adapted to be an electrical fuse. The electrical fuse can be burned out by applying a current. The vertical structure of the preferred embodiment is suitable to be formed in any layer.
摘要:
This description relates to a method for fabricating an interconnection structure in a complementary metal-oxide-semiconductor (CMOS). The method includes forming a first opening in a dielectric layer over a substrate and partially filling the first opening with a second work-function metal layer, wherein a top surface of the second work-function metal layer is below a top surface of the first opening. The method further includes forming a second opening adjoining the first opening in the dielectric layer over the substrate and depositing a first work-function metal layer in the first and second openings, whereby the first work-function metal layer is over the second work-function metal layer in the first opening. The method further includes depositing a signal metal layer over the first work-function metal layer in the first and second openings and planarizing the signal metal layer.