A process for stabilizing a sensitive substance; plating a sensitive substance onto a solid carrier under a controlled atmosphere to reduce loss of the sensitive substance; encapsulating the plated material under controlled atmosphere and airflow to reduce volatilization during the process and stabilize the sensitive substance. The target mobile device has a display having different characteristics from the reference mobile device. The breakdown voltage of the power device is controlled according to a distance between the first conductive well and the second conductive buried layer. Surface breaking discontinuities are visible as highly colored echoes within this C-scan display.