How do Intel seal their cpu's and why?

[gopnikstachupl]

*Do not do what I have done!!! *

Every once a while I would clean out pc from the thicc dust and I would apply new thermal paste to the cpu. But I didnt have any alcohol or spirit to clean the cpu from thermal paste (Well I have a lot of vodka but theres no way I will use that to clean the cpu). So I poured tap water on my i5 3350p... it thankfully didnt damage my cpu. Now how does Intel seal their cpu's and why do they seal them like that?

Yeah i came up with this useless thread because im bored... And thats why its so useless

 

[hang-the-9]

Why they seal them, as in why not just leave the CPU chip exposed? To prevent damage and provide the heatsink a place to be seated.

 

[zyh1987]

The metal cap is called IHS, or integrated heat spreader,
3 main reasons I can think of at the moment.
1st, for thermal reason, Ihs increase the surface area of the chip, and spread the heat ( energy) evenly, actually chip is only about 10-15% of the IHS area.
2nd, it also protects the chip from uneven forces and other physical damages.
Lastly, it is a lot easier to install a heat sink
Over a IHS, rather than the actual chip

 

[zyh1987]

As for How they seal it. They put TIM on the naked chip die, seal the IHS with silicone.