SEMICONDUCTORS; FLASH MEMORY CARDS; PORTABLE FLASH MEMORY; COMPUTER MEMORY; VLSI (VERY LARGE SCALE INTEGRATION) CIRCUITS; INTEGRATED CIRCUITS, MEMORY EXPANSION MODULES; DOUBLE DATA RATE-SYNCHRONOUS DYNAMIC RANDOM ACCESS MEMORY (DRAM); DOUBLE DATA RATE-SYNCHRONOUS DYNAMIC RANDOM ACCESS MEMORY (DRAM) WITH DOUBLE CHANNELS; LCD MODULES AND MICROCONTROLLERS