It's not the raw materials that makes semis expensive, rather it's the extensive processing it has to go through to get be transformed into the final product.

It's not the raw materials that makes semis expensive, rather it's the extensive processing it has to go through to get be transformed into the final product. The biggest issues with materials I'm aware of are often the 'conflict resources' which are in high demand but large percentages of the supply are mined in regions that for social and/or geopolitical reasons limit supply.