摘要:
A mark structure for measuring the alignment accuracy between a former layer and a latter layer with electron beam inspection (EBI) is described. The mark structure includes multiple divisions, each of which includes at least one region that includes multiple parts each disposed with a pair of a pattern of the former layer and a pattern of the latter layer. In each region, all of the parts have the same distance in a direction between the pattern of the former layer and the pattern of the latter layer. The distance in the direction is varied over the regions of the divisions of the mark structure.
摘要:
A mark structure for measuring the alignment accuracy between a former layer and a latter layer with electron beam inspection (EBI) is described. The mark structure includes multiple divisions, each of which includes at least one region that includes multiple parts each disposed with a pair of a pattern of the former layer and a pattern of the latter layer. In each region, all of the parts have the same distance in a direction between the pattern of the former layer and the pattern of the latter layer. The distance in the direction is varied over the regions of the divisions of the mark structure.
摘要:
A method for fabricating a metal-oxide semiconductor (MOS) transistor is disclosed. The method includes the steps of: providing a semiconductor substrate; forming a silicon layer on the semiconductor substrate; performing a first photo-etching process on the silicon layer for forming a gate pattern; forming an epitaxial layer in the semiconductor substrate adjacent to two sides of the gate pattern; and performing a second photo-etching process on the gate pattern to form a slot in the gate pattern while using the gate pattern to physically separate the gate pattern into two gates.
摘要:
A thin film resistor structure includes a substrate, a flat bottom ILD (inter layer dielectric) disposed on the substrate, a plurality of first contacts disposed in the bottom ILD, and each top surface of the first contacts is on the same level as a top surface of the bottom ILD; a flat top ILD disposed on the bottom ILD, a plurality of second contacts disposed in the top ILD, and each top surface of the second contacts is on the same level as a top surface of the top ILD, and a thin film resistor disposed between the bottom ILD and the top ILD.
摘要:
A method for fabricating a metal-oxide semiconductor (MOS) transistor is disclosed. The method includes the steps of: providing a semiconductor substrate; forming a silicon layer on the semiconductor substrate; performing a first photo-etching process on the silicon layer for forming a gate pattern; forming an epitaxial layer in the semiconductor substrate adjacent to two sides of the gate pattern; and performing a second photo-etching process on the gate pattern to form a slot in the gate pattern while using the gate pattern to physically separate the gate pattern into two gates.
摘要:
The present invention relates to a fabricating method of a semiconductor element. First, a substrate is provided and a first layout structure having a first width is formed on the substrate. Then, an etching mask is formed to cover the first layout structure, and the etching mask exposes a portion of the first layout structure. After that, the first layout structure is etched with the etching mask to form a second layout structure having a second width. The second width is less than the first width. This fabricating method is capable of finishing the fabrication of gate structures in two different directions. Accordingly, the layout flexibility is improved.
摘要:
A thin film resistor structure includes a substrate, a flat bottom ILD (inter layer dielectric) disposed on the substrate, a plurality of first contacts disposed in the bottom ILD, and each top surface of the first contacts is on the same level as a top surface of the bottom ILD; a flat top ILD disposed on the bottom ILD, a plurality of second contacts disposed in the top ILD, and each top surface of the second contacts is on the same level as a top surface of the top ILD, and a thin film resistor disposed between the bottom ILD and the top ILD.
摘要:
A semiconductor structure includes a gate structure disposed on a substrate and having an outer spacer, a recess disposed in the substrate and adjacent to the gate structure, a doped epitaxial material filling up the recess, a cap layer including an undoped epitaxial material and disposed on the doped epitaxial material, a lightly doped drain disposed below the cap layer and sandwiched between the doped epitaxial material and the cap layer, and a silicide disposed on the cap layer and covering the doped epitaxial material to cover the cap layer together with the outer spacer without directly contacting the lightly doped drain.
摘要:
A method for fabricating a semiconductor device is described. A substrate having thereon a polysilicon resistor is provided. A dielectric layer is formed over the substrate covering the polysilicon resistor. The dielectric layer is etched to form a contact opening over the polysilicon resistor, with overetching into the polysilicon resistor. A metal silicide layer is formed on the polysilicon resistor in the contact opening. A metal material is filled in the contact opening. A portion of the dielectric layer, the metal material, and a portion of the polysilicon resistor are removed to expose the metal silicide layer. A metal contact is formed over the metal silicide layer.
摘要:
A method for fabricating a semiconductor device is described. A substrate having thereon a polysilicon resistor is provided. A dielectric layer is formed over the substrate covering the polysilicon resistor. The dielectric layer is etched to form a contact opening over the polysilicon resistor, with overetching into the polysilicon resistor. A metal silicide layer is formed on the polysilicon resistor in the contact opening. A metal material is filled in the contact opening. A portion of the dielectric layer, the metal material, and a portion of the polysilicon resistor are removed to expose the metal silicide layer. A metal contact is formed over the metal silicide layer.