Intel S4500 Series SSD vs Micron 1100 2.5inch Flash SSD weight difference

Jun 10, 2018
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I am investigating the reason why there is weight difference between the both SSD and I could not find any clue. I suppose it is because of the material used for the casing or even the component design inside. So, is there any links or data sheet that describe the material used for each parts or detailed drawing regarding the items? I have gone through the data sheet provided by the company website and still find no clue. Thank you.
 
The people that would have details about how the drives are made and with what are the vendors that made the drives. Companies don't usually put out engineering details out for public view if they want to remain companies for long. If you made something and wanted to sell it, would you tell everyone how you made that product so they can just copy it?