Lee, an engineer at Samsung's semiconductor division, clocks out when his shift ends. He used to work longer hours, going the extra mile to excel at his projects. But lately, he's been coming straight home to work on his job application for the chipmaker's South Korean rival SK Hynix, sharing tips with his coworkers on...

This is today's edition of The Download, our weekday newsletter that provides a daily dose of what's going on in the world of technology. Samsung's chip workers are jumping ship to rival SK Hynix Lee, an engineer at Samsung's semiconductor division, used to work late. But lately, he's been clocking out on time and heading...