Memory chip and Microchip

Memory chip noun - A RAM microchip that can be plugged into a computer to provide additional memory.

Microchip and memory chip are semantically related. In some cases you can use "Microchip" instead a noun phrase "Memory chip".

Microchip noun - Electronic equipment consisting of a small crystal of a silicon semiconductor fabricated to carry out a number of electronic functions in an integrated circuit.

Memory chip and microchip are semantically related. Sometimes you can replace phrase "Memory chip" with "Microchip", this terms are similar.