For a long time, Samsung handled the production of processors present in the iPhone and iPad. But in recent years Apple looked elsewhere and turn to TSMC. This is an important issue for Samsung because Apple produces tens of millions of iPhone and iPad, with just as many processors. Apple is a big customer that can order a lot of units and generate profit for the producer. TSMC handles the processor in the latest iPhone and rumors claim that the group will also take care of the expected A11 processor in the iPhone 2017. But Samsung has not said its last word and would like to come back in the battle. Samsung will invest more to create a production plant in 2018. The goal of the Korean group is to secure as many orders as possible before the competition. Samsung hopes that Apple will return and do business once again. It is however unlikely that Apple will abandon TSMC because Samsung is its first competitor in the smartphone market. In addition, TSMC seems to be doing better than Samsung. For the iPhone 6s, half of the processors were produced by Samsung and the other half by TSMC. Those of Samsung offered a lower autonomy and they would heat a little more.