2015 already a record year for chip sector M&A

Technician working with silicon wafers in a high tech lab.
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Merger and acquisition activity in the semiconductor industry has already set an annual record in 2015, more than doubling the amount of dealmaking in the space in all of last year.

The latest linkup was U.K.-based Dialog Semiconductor's almost $5 billion deal for Atmel of San Jose, California, announced Sunday.

Investors want to know why the M&A mania is happening and what deals may be next. CNBC Pro reached out to expert semiconductor industry analysts to find the answers.

Announced global semiconductor merger and acquisition volume already totals $104.7 billion for 2015 year to date, compared with $46.3 billion in 2014, according to Dealogic. The two previous peaks were $70.3 billion in 2000 and $75.2 billion in 2006.