The alternative is to have shortages.

If there is demand for N chips at $X price, but you only have N/2 chips, then half the people aren't going to be able to buy them. The people who really need the chips, and would be willing to pay a lot more than $X for them, will be competing with people who are only willing to pay $X for them. You will end up getting scalping and shortages and hoarding. Since people know that there are enough people willing to pay a higher price, everyone will try to buy them at $X, even if they don't need them at all. Just buy them at $X, and immediately sell it to one of those companies willing to pay a lot more.

The market is extremely inefficient... since the manufacturer isn't charging enough, you get way too many people trying to buy them from the manufacturer.

So you find the price where the demand is N/2 chips, and everyone who is willing to pay that much will get one, and there is no profit for scalpers so the only people who will buy them will be actual companies that need them.

It is the other way around, When people want something they are willing to pay more for it. The manufacturer wants to sell to the person that will pay the most. While the person wants to buy from the manufacturer that charges the least. As such when the manufacturing capacity is below demand the price goes up until the item is worth what people will pay for it(at large, statistically, it works like an auction). The promise of capitalism is that as the price goes up it should incentivize manufacturing capacity to go up and as the capacity meets demand and the manufactures start to fight each other to be the one to sell the item the price goes down.

Sometimes this works and sometimes it does not.

Because if you take orders otherwise you won't be able to fulfill them.