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A mask shop is a factory which manufactures photomasks for use in the semiconductor industry. There are two distinct types found in the trade. Captive mask shops are in-house operations owned by the biggest semiconductor corporations, while merchant mask shops make masks for most of the industry.
Merchant mask shops will produce photomasks for a variety of integrated device manufacturers (IDMs), foundries or optical device companies in addition to providing excess cavity work and re- pellicle for captive mask shops.
The company structure is similar to that of any medium-sized manufacture and has the following unique departments or mask makers:
The worldwide photomask production market was $3.1 billion in 2013. Almost half of market attributed to captive mask shops (in-house mask shops of major chipmakers). [1]
The costs of creating new mask shop for 180 nm processes were estimated in 2005 as $40 million, and for 130 nm - more than $100 million. [2] In 2013 cost of new 28 nm mask shop was estimated at $110 – 140 million. [3]
As technology shrinks, the cost to mask shops increase and the product turn around time grow longer as well.