In the “old days,” ICs used to be dually sourced. For example, Intel created and manufactured the 8086, but AMD also manufactured them. Not a perfect solution,

In the “old days,” ICs used to be dually sourced. For example, Intel created and manufactured the 8086, but AMD also manufactured them. Not a perfect solution, but better than one single manufacturer. Sadly, one can’t really do that now because of how small the features on chips are getting.