I never paid much attention but previously I had only seen that style of headset referred to as zero stack (ZS). Now that I look a little, some companies do call it semi-integrated while other also call it integrated. Regardless, it won't fit your bike as it requires a specific headtube size. Your best bet for an upgrade, IMO, is to find a cartridge bearing threaded standard headset. Otherwise, you are looking at an escalating amount of money.