A subscriber identity module, or SIM, is present in many cellphones in the U.S., and indeed around the world. What exactly is a SIM? And what can x-rays reveal about their inner workings? We popped a SIM into our TruView Prime X-ray inspection and looked! Our x-rays revealed a simple, yet elegant IC design. A SIM is used to authenticate a user with the cellular providers service. Most SIM cards are built with traditional die packaging. In our x-ray we can see the die and the bond wires connecting it to the different component interfaces e.g. I/O and clock. The x-ray images also reveal that some of the interface modules aren’t used; this is evident in the lack of any bond wire connections.
[Best_Wordpress_Gallery id=”88″ gal_title=”SIM”]
America’s fascination with the rocket’s red glare runs deep. In preparation for Independence Day festivities, we decided it was time for Creative Electron to go...Read More
During breaks in our newly reopened cafeteria, here at Creative Electron world headquarters, there began a rumbling. Rumors started to circulate of underfilled (and thus,...Read More
Our pals at iFixit are right back at it with their teardown of the 2021 Apple TV 4K. Not a ton of surprises with this...Read More