1. >
  2. >

What is Semiconductor Memory?

Device Principle (Mask ROM)

■Mask ROM Memory Cell Configuration
  • Adopts a NAND structure for increased integration (1 transistor cell)
Mask ROM Memory Cell Configuration
■Data Write Method

Information written in the wafer process

  • '1' : Ions implanted in the transistor
  • '0' : No ion implantation
■Data Read Method

Word line potential of the Read Cell is 0V
Word line potentialof non-Read Cell is Vcc
→ Voltage is supplied to the Bit Line
'1' is determined if current flows