Figure 1
GISAXS images of ULK samples after curing, resulting from different processes: (a) spin coating with as sacrificed porogen (SC-Po2); (b) self-assembled (SC-SA); (c) nanoclustering (SC-NC) or by (d) PECVD1 (electron beam cured), (e) PECVD2, (f) PECVD3, (g) PECVD4 (same composition as PECVD1, but ultra-violet cured). |