摘要:
In order to reduce the incidence of stress concentration areas in an etched opening, a thinner polyimide layer is deposited to minimize gap formation therein, and a descum process is then performed to increase the angle of the presented layer surface. Reduction of the stress in this manner reduces the incidence of cracking of the later formed metal contact, which improves the overall pass rates of semiconductor devices so manufactured.
摘要:
An integrated circuit that includes a substrate, a metal layer over the substrate and a first dielectric layer over the metal layer. The first dielectric layer includes a via. A sidewall layer that includes a silicon compound is in the via. A second dielectric layer is over the sidewall layer and an ultra-thick metal (UTM) layer is in the via.
摘要:
A semiconductor device structure, along with methods of forming such, are described. The structure includes an interconnect structure disposed over a substrate, a first conductive feature disposed in the interconnect structure, a dielectric layer disposed on the interconnect structure, and a second conductive feature having a top portion and a bottom portion. The top portion is disposed over the dielectric layer, and the bottom portion is disposed through the dielectric layer. The structure further includes an adhesion layer disposed over the dielectric layer and the second conductive feature. The adhesion layer includes a first portion disposed on a top of the second conductive feature and a second portion disposed over the dielectric layer, the first portion has a thickness, and the second portion has a width substantially greater than the thickness.
摘要:
A method of forming an integrated circuit that includes providing a substrate, a metal layer over the substrate, and a first dielectric layer over the metal layer. The first dielectric layer includes a via. A sidewall layer that includes a silicon compound is in the via. A second dielectric layer is over the sidewall layer and an ultra-thick metal (UTM) layer is in the via.