Abstract:
An interdigitated structure may include at least one first metal line, at least one second metal line parallel to the at least one first metal line and separated from the at least one first metal line, and a third metal line contacting ends of the at least one first metal line and separated from the at least one second metal line. The at least one first metal line does not vertically contact any metal via and at least one second metal line may vertically contact at least one metal via. Multiple layers of interdigitated structure may be vertically stacked. Alternately, an interdigitated structure may include a plurality of first metal lines and a plurality of second metal lines, each metal line not vertically contacting any metal via. Multiple instances of interdigitated structure may be laterally replicated and adjoined, with or without rotation, and/or vertically stacked to form a capacitor.
Abstract:
A thin film resistor device and method of manufacture includes a layer of a thin film conductor material (20) and a current density enhancing layer (CDEL). The CDEL is an insulator material adapted to adhere to the thin film conductor material (20) and enables the said thin film resistor to carry higher current densities with reduced shift in resistance. In one embodiment, the thin film resistor device includes a single CDEL layer (50) formed on one side (atop or underneath) the thin film conductor material (20). In a second embodiment, two CDEL layers are formed on both sides (atop and underneath) of the thin film conductor material (20). The resistor device may be manufactured as part of both BEOL and FEOL rocesses.
Abstract:
Disclosed is a method of fabricating a metal-insulator-metal (MIM) capacitor. In this method, a dielectric layer (102, 106) is formed above a lower conductor layer (100) and an upper conductor layer (104, 108) is formed above the dielectric layer. The invention then forms an etch stop layer (200) above the upper conductor layer and the dielectric layer, and forms a hardmask (202) (silicon oxide hardmask, a silicon nitride hardmask, etc.) over the etch stop layer. Next, a photoresist (300) is patterned above the hardmask, which allows the hardmask, the etch stop layer, the dielectric layer, and the lower conductor layer to be etched through the photoresist.
Abstract:
An interdigitated structure may include at least one first metal line, at least one second metal line parallel to the at least one first metal line and separated from the at least one first metal line, and a third metal line contacting ends of the at least one first metal line and separated from the at least one second metal line. The at least one first metal line does not vertically contact any metal via and at least one second metal line may vertically contact at least one metal via. Multiple layers of interdigitated structure may be vertically stacked. Alternately, an interdigitated structure may include a plurality of first metal lines and a plurality of second metal lines, each metal line not vertically contacting any metal via. Multiple instances of interdigitated structure may be laterally replicated and adjoined, with or without rotation, and/or vertically stacked to form a capacitor.
Abstract:
An interdigitated structure may include at least one first metal line, at least one second metal line parallel to the at least one first metal line and separated from the at least one first metal line, and a third metal line contacting ends of the at least one first metal line and separated from the at least one second metal line. The at least one first metal line does not vertically contact any metal via and at least one second metal line may vertically contact at least one metal via. Multiple layers of interdigitated structure may be vertically stacked. Alternately, an interdigitated structure may include a plurality of first metal lines and a plurality of second metal lines, each metal line not vertically contacting any metal via. Multiple instances of interdigitated structure may be laterally replicated and adjoined, with or without rotation, and/or vertically stacked to form a capacitor.