The feud between Samsung Electronics’ device-making and chipmaking divisions is deepening, as employees in the smartphone and home appliance businesses are expressing anger over a nearly 100-fold compensation gap between them and employees in the chipmaking division. Samsung Electronics Company Union (SECU), which is mostly made up of employees in the appliance-making Device Experience (DX) division, will hold a rally under a “same company, same rights” slogan at the company’s plant in Suwon,...