The competition between samsung and sk hynix in the high-bandwidth memory (hbm) chip market is increasing, with sk hynix reportedly seeking to hire talent from samsung. There are indications that both companies are advancing their hbm technology, with sk hynix mass-producing a new version and samsung collaborating with tsmc on hbm4 ai chip development. The market for hbm chips appears to be growing, driven by demand for artificial intelligence applications.