Well materials for chips are also finite and rare metals are rare. Also wafers or at least the basic recources are also used for other products like solar panels and obviously a lot more devices have more complex chips nowadays. For example your TV, car, phone, tablet etc. all have advanced chips and a lot more countries are getting access to these kind of devices. So the shortages won't end for a while. Luckily there are still mountains of old e-waste which are rich in materials to build new chips at least.
Please excuse my (probally) poor grammar







