This report presents a Basic Functional Analysis of the Apple TMIR36 die found inside the Apple W3 338S00464 component. The W3 338S00464 was extracted from the S4 system in package (SiP) module, which came from the Apple Watch A1976.

This report contains the following detailed information:

• Selected teardown photographs, package photographs, package X-rays, die markings, and die photographs
• SEM cross-sectional micrographs of the general structure of the die dielectric materials, major features, and transistors
• Measurements of vertical and horizontal dimensions of major microstructural features
• Plan-view optical micrograph of the die delayered to the gate level
• Identification of major functional blocks on gate level die photograph
• Table of functional block sizes and percentage die utilization
• High-resolution top metal and polysilicon die photographs delivered in the CircuitVision software
• Cost of die and tested packaged die, based on the manufacturing cost analysis of the observed process