That depends. Years ago Thomas Donaldson wrote the following:

THE APOCALYPSE HAS BEEN CALLED OFF

http://www.alcor.org/cryonics/cryonics8906.txt

Very many of us come from a Christian background. I do myself. I became an atheist very early in my teens. But our background is very important. It can fool us as to what we really believe. I have noticed, too much, both in cryonics and out, a strong desire to interpret nanotechnology (and before it there were others) in the exact terms of Christian myth. It's as if a person carries out a renaming exercise (God == Nanotechnology, Apocalypse == Singularity, Drexler == Christ (sorry Eric! )). God's name is certainly not a central part of Christian doctrine. This person is a Christian, rather than the atheist he thinks he is. His differences from Christianity are sectarian, not philosophical. Personally I believe no conflict exists between Christianity and cryonics, although many churches will meet with disaster (and deserve to!) for tying their message so much to death. It's not wrong to be Christian. But it is dishonest to oneself and others to think that just renaming everything, and having a slightly different theory of how God works, frees one from Christianity to light.

So ask yourself: Have you really become an atheist, or have you just switched denominations to one with a "slightly different theory about how God works"?