VLSI test principles, digital circuit board, motherboard, CPU, GPU, RAM, chipset, wires, electronic components, testing equipment, laboratory setting, fluorescent lighting, wooden workbench, metal tools, soldering iron, oscilloscope, signal generator, logic analyzer, computer screen displaying coding interface, engineer wearing glasses, white lab coat, holding a pen, focused expression, 3/4 composition, shallow depth of field, softbox lighting, realistic textures.