VIP Exclusive
CID Certified Interconnect Designer VIP Practice Exam
CID — The CID (Certified Interconnect Designer) certification is issued by IPC – Association Connecting Electronics Industries. The exam consists of approximately 100 multiple-choice questions administered over 2 hours, with a passing score of 70%, and covers PCB design principles, IPC standards, signal/power integrity, materials, DFM, and DFT across both analog and digital interconnect design domains.
30
Questions
120m
Time Limit
70.00%
To Pass
Question 1 of 30👑 VIP
A PCB designer is routing a 50-ohm controlled-impedance microstrip trace on the outer layer of a four-layer FR4 board with a dielectric constant (Dk) of 4.3, a dielectric height of 6 mils beneath the trace, and a copper thickness of 1 oz (1.4 mils). Using the standard microstrip impedance formula, approximately what trace width is required to achieve 50 ohms?
Questions 2–30 and full explanations are VIP-exclusive.