FUNCTION EXPANSION SUBSTRATE, EXPANSION SUBSTRATE FOR COMMUNICATION, INSULATION FILM FOR EXPANSION SUBSTRATE FOR COMMUNICATION, COMPUTER SYSTEM, METHOD FOR REMOVING FUNCTION EXPANSION SUBSTRATE AND SUBSTRATE FOR ELECTRONIC CIRCUIT

摘要

PROBLEM TO BE SOLVED: To provide a function expansion substrate that is easily attached and detached to/from a motherboard. SOLUTION: In a CDC(Communication Daughter Card) 70 as a function expansion substrate introduced to the motherboard of a computer system, its surface is covered with an insulation sheet. In the CDC 70, an edge part of one end of the insulation sheet is extended to form a projecting part 95. A user can easily carry the CDC 70 and easily attach and detach the CDC 70 to/from the motherboard by grabbing the projecting part 95.