Abstract: An integrated circuit (IC) device comprises a host component and an IC die directly bonded to the host component. The IC die comprises a substrate material layer and a die metallization level between the substrate material layer and host component. The IC die includes an upper die alignment fiducial between the die metallization level and host component. The upper die alignment fiducial at least partially overlaps one or more metallization features within the die metallization level. In embodiments, at least two orthogonal edges of the upper die alignment fiducial do not overlap any of the metallization features within the die metallization level. In embodiments, the IC die includes a lower die alignment fiducial between the substrate material layer and the die metallization level. The lower die alignment fiducial may at least partially overlap one or more second metallization features within a second die metallization level of the IC die.

Abstract: An integrated circuit (IC) die comprises a first metallization layer comprising first interconnect structures which each extend through the first metallization layer, a second metallization layer comprising second interconnect structures which each extend through the second metallization layer, an interlayer dielectric (ILD) stack between the first metallization layer and the second metallization layer. The ILD stack comprises a stress modulation layer on the first metallization layer and a capping layer on the stress modulation layer. A first intrinsic stress in a first material of the stress modulation layer is to mitigate a second intrinsic stress in the first metallization layer.

Abstract: An integrated circuit structure comprises one or more first level interconnects (FLIs) embedded in an underfill (UF) over a substrate. An etch stop layer is over the FLIs. A passivation layer is over the etch stop layer and a plurality of vias are through the passivation layer. A plurality of contacts are on the passivation layer in contact with the vias to connect with the FLI. A plurality of topological crack stop (TCS) features are formed in the passivation layer and on a top surface of the etch stop layer.