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You missed Casey's most important point, zoomzoom. You say the primary phrase you're targeting on the home page is "3d IC technology". But the only place that phrase exists is once in the meta-title of the page. There's no way a page is going to rank for an even moderately competitive term by only have it in the meta-title. If that phrase is the focus of the page, it should naturally occur multiple times in the copy of the page, in captions, alt tags, etc. Right now, Google has no solid reason to think the page is actually about that phrase. Now, whether the home page is the most valuable one to rank for that phrase is another discussion, but if that's the page you want to rank, you've at least got to use those words on the page! Hope that helps? Paul