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IPC CID+ Certification Exam Newest 2025 Complete Questions and Verified Answers |Already Graded A+
What are key cost drivers for bare board manufacturing? - ANSWER- Laminate materials/mixed dielectrics, number of layers, total number of holes, minimum hole size, panel utilization, lamination cycles, co- planar, plated via-in-pad epoxy filled, back-drilling, impedance control
DRC's for fabricators and assemblers often do not take into account what type of DRCs - ANSWER-electrical DRC's such as controlled signal lengths for timing
Rectangular sheet of base material that is used for the processing of 1+ printed boards, and when required, one or more test coupons - ANSWER-Fabrication Panel
Printed board image/patterns plus the additional contiguous deliverable material from the panel (+ tabs, fiducials, tooling holes, etc...) - ANSWER-Assembly Array
What is the most common size panel? - ANSWER-18x24in, 460x610mm
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Stencil manufacturer work to what location/ - ANSWER-Nominal positioning location between two-dimensional variations
What should the designer consider adding to help the stencil manufacturers? - ANSWER-Alignment fiducials
What ratio should you never go beyond in terms of the length-to-width
ratio? - ANSWER-12:!
How do long, thin boards jeopardize conductor routability? - ANSWER- Routing is primarily on the longitudinal axis and may cause crosstalk and signal integrity problems
What is the benefit of copper balancing? - ANSWER-Uniform exposure to the etching solutions
Addition areas of copper foil intended to draw copper in the plating bath away from the fine conductor images; uniform plating distribution - ANSWER-Plating Thief
What important effect is reduced as an output from copper balancing from the center to either side in the laminated product - ANSWER-Bow and Twist
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What can help straighten a board that does not have proper copper balance from bow and twist? - ANSWER-Mechanical features like heat sinks and stiffeners
What thermal management technique transfers the heat down to a cooler plan/surface? - ANSWER-Thermal vias
Thermal energy/heat that is transferred by electro-magnetic radiation primarily in the infrared (IR) wave length - ANSWER-Radiation
How do large cores/large copper affect the reflow profile? - ANSWER- Significant heatsink and impact the reflow of the solder surfaces
What is highly advisable to do when a board contains a metal core? - ANSWER-Add a note on the Assembly Drawing
Why does 0402 equate to 0.03936~" x 0.01968~" not 0.04"x0.02"? - ANSWER-Inaccurate round offs
What are the 3 vantage points of dimensioning? - ANSWER-Mechanical Constraints Drawing (mating the PCB with the mechanical housing), PCB Master Drawing, QA inspection criteria (ensure conformance of manufactured product for intended usage)
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