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Peek inside iPhone 4S

Posted: 25 Oct 2011 ?? ?Print Version ?Bookmark and Share

Keywords:teardown? iPhone 4S?

Apple A5 processor: After making its first appearance inside the Apple iPad 2, the Apple A5 dual-core processor has now found its way into the iPhone 4S. The Apple A5 features two ARM cores and supports low power DDR2 DRAM memory.

The iPhone 4S version of the A5 is nearly identical to the version of the processor found in the iPad 2a good indicator that this version of the A5 is also manufactured at the 45-nm process node. A cross-section is required to determine if this version of the A5 is manufactured by someone other than Samsung (such as TSMC) but early indications show that this is most likely from Samsung.

A5 die photo.

Qualcomm MDM6610
The MDM6610 chipset from Qualcomm is an iteration of the MDM6600 and a member of their Gobi line of connectivity solutions. Much like the MDM6600 that was first used in the CDMA version of the Apple iPhone 4 that was released late in 2010, this chipset features multi-modesupporting GSM/GPRS/EDGE, CDMA, HSDPA and HSPA+,as well as the 1x EV-DO standard. The MDM6610 really is a single chip, which was evident once we decapped the device. Doing so revealed the baseband and transceiver on separate dies. Below are images of the MDM6600 die.

Here are Qualcomm MDM6610 die photos.

These are the contents of the iPhone 4S box: manuals, earbuds, USB cord and plug adapter.

Here's a close up of the iPhone 4S torn down by UBM TechInsights (32GB model).

A shot of the iPhone 4S sim card removed.

The back cover of the iPhone 4S removed shows the main board and the battery.

Here's a closer look at the iPhone 4S with the back cover removed. Here, you can see the new LI-ION battery that slightly improves upon the battery performance of the iPhone 4.

The battery and the speaker removed from the main casing.

Here's the main board removed from the iPhone 4S. This board is features a lot of shielding over the main components.

Here are the image sensors removed from the iPhone 4S.

Here's the touchscreen display of the iPhone 4S.

Here's the new 8-megapixel image sensor selected for the iPhone 4S.

Here are the Broadcom BCM4330 die shots.

Here's a close up of section of Elpida B240ABB-LPDDR2.

A look at the Samsung k4P2G324EC.

- Allan Yogasingam
??UBM TechInsights

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