>> there might be a move to integrate the ASIC onto/into a Semi chip. Is this physically possible?
It's all terminology, MH. An ASIC is a semiconductor chip, but rather than being a general purpose part, it is custom designed to be used in a single application. ASIC is an acryonym derived from the phrase, Application Specific Integrated Circuit.
ASICs are particulary useful if you expect to keep modifying the circuit, as they are less expensive to re-design than a general purpose IC. But they cost more per unit to manufacture, as they make less efficient use of silicon, which results in a larger chip size.
Otoh, general purpose ICs are more expensive to design, but use silicon more efficiently, and are less expensive per unit to manufacture.
If you have an evolving application, anticipate frequent improvements, and a limited number of units for any individual revision, asic's are the way to go.
I hope that helps.
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