Samsung has provided many of the parts for the Apple iPhone and Apple iPad over the years; but this year, there were some who believed that Apple had reached an agreement with TSMC to replace Samsung as the provider of the A7 processor that drives the Apple iPhone 5s. But apparently that deal won't take affect until 2014...
Source: http://www.phonearena.com/news/Samsung-built-A7-processor-rocks-the-new-Apple-iPhone-5s_id47633
Source: http://www.phonearena.com/news/Samsung-built-A7-processor-rocks-the-new-Apple-iPhone-5s_id47633