B. Zhao et al., INTEGRATION OF LOW PERMITTIVITY DIELECTRIC IN AL DUAL DAMASCENE ARCHITECTURE FOR LOW PARASITIC ON-CHIP INTERCONNECT APPLICATIONS, Electronics Letters, 34(13), 1998, pp. 1309-1310
A low dielectric constant (low-kappa) material has been successfully i
ntegrated in an Al dual damascene interconnect architecture where the
low-kappa dielectric (kappa < 3) was used as the intra/inter level die
lectric (ILD). In addition to a reduction in intra-level and inter-lev
el capacitance, low via resistance, excellent electrical isolation, an
d good reliability characteristics were observed.