The stars have only just aligned for Samsung's semiconductor division. There's intense demand for its memory products and major clients are also eyeing its foundry services. The company should be able to capitalize on all of these opportunities to make money hand over fist. However, there may be a serious threat to its chip production in about two months, as the company's unionized workers are set to vote on a potential strike scheduled for May this year. Company's largest union threatens to go on strikeChoi Seung-ho, head of the Samsung Electronics Labor Union, has said that there would likely be production disruption if the union members vote in favor of the stirke. This is a pretty significant union that has 90,000 out of the company's workforce of 125,000 as its members. Voting for the strike continues until tomorrow. If the union is unable to strike a favorable deal with Samsung, they intend to go on strike for 18 days starting May 21. This would likely impact half of the output as Samsung's massive semiconductor plant in Pyeongtaek, South Korea.Union members are frustrated with the pay gap compared to other companies in the sector. SK Hynix, Samsung's top rival in the memory space, has already accepted its union's demand to reform compensation. Choi says that the union is doing this because it feels that while the chip industry is booming, “those gains aren't trickling down to us.”A spokesperson for Samsung has said that the company will continue its discussions with the union “in a sincere manner.”