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General => General Technical Chat => Topic started by: soFPG on October 24, 2019, 08:25:14 pm

Title: 0.65mm BGA 15 years ago?
Post by: soFPG on October 24, 2019, 08:25:14 pm

Lately I am really interested in Mediatek CPUs (ARM based) because they are available for very cheap at well known chinese shops.
But they are lacking in documentation. What I could find out though is that a almost 15 year old chip (MT6217) is only available in 0.65mm pitch BGA package?

So 0.65mm BGA was common in entry-level ARM CPUs (56 MHz) back then but today 0.65mm didn't become a cheap option at the common chinese PCB fabs - why is that? How did the PCB manufacturing process develop in the last 15 years?