iPad Disassembly Reveals Interesting Secrets
Quick Update: We recently showed some iPad teardown pictures in one of our articles.
Didn’t take too long for some folks to actually do a detailed dissection of the iPad and even post videos. A very interesting way to look at the iPad and learn more about its secrets. Why is the iPad so fast? Why is it so powerful? Why does the battery last long? This is exactly what the folks from iFixit set out to do in their recent disassembly of the iPad.
The reports thus far reveal some interesting insights about the iPad. Some of the highlights from iFixit and also reported by GadgetLab:
- The iPad’s battery has 5 times the capacity of the battery in the iPhone. The iPad actually has 2 batteries wired in parallel, for a total of 24.8 Watt-hours.
- On average, the iPad sips just 2.5 Watts. That’s 1/5 the power of a compact fluorescent bulb.
- The A4 processor is a Package-on-Package (PoP), with at least 3 layers of circuitry layered on top of each other. A4 is packaged just like the iPhone processors, microprocessor in one package and 2 DRAMs in the other package.
- The iPad has 512 MB RAM inside the A4 processor package. iFixit had to X-Ray the processor to confirm this. The X-Ray revealed two layers of RAM. In addition to the ARM processor, the A4 package contains two stacked 256 MB Samsung K4 SDRAM dies.
- The glass panel is quite thick – about 1.18 mm, compared to the iPhone’s 1.02 mm thick glass. This certainly gives your iPad protection and ensures durability.
- The touch circuit design is more similar to the old 2G and early 3G iPhones than the current 3GS.
A video slideshow from iFixit
