IPC CID UPDATED| ACTUAL Exam Questions
and CORRECT Answers 100%
What do performance classes reflect? - Progressive increases in sophistication, functional
performance, and frequency/intensity of inspection or stress testing
What are the three performance classes? - 1-General Electronics 2-Dedicated Service 3-
High reliability
Who is the end user? - The end user is the individual or agency that contracts the printed
board or assembly to be designed and manufactured
Who determines the class of a product? - The end user
What would be in class 3 performance? - Military, medical, etc.
What is ambient temperature? - The surrounding environment that comes into contact
with your product
What do producibility levels tell us? - Increasing complexity of tooling, materials, and
processing. Yields increase as costs decrease, etc.
What increases with each producibility level? - Sophisitication
, What is the zaxis aspect ratio? - Ratio between the nominal thickness of the board and
the smallest drill size.
What is the most important special consideration in terms of electrical functionality that a
designer must consult the EE? - Special keep out or keep in areas of the board.
Where should high frequency circuits be placed? - NEar the connector
Where should filtering caps be placed? - Near the source of power/gnd (at the
connector)
What is least important to route in analog circuits? - Power and ground
What is a major consideration for component placement? - Will backwards compatibility
be necessary?
What is Ohm's law? - V=IR
What is an important basic rule for a designer of a board? - Terminate unused logic pins
with a pull-down or pull-up resistor.
What product safety testing regards flame retardants? - UL 94
How thick is half ounce copper? - 0.7 mils (17 um thick)
What is the subtractive process? - Unwanted copper is etched away
and CORRECT Answers 100%
What do performance classes reflect? - Progressive increases in sophistication, functional
performance, and frequency/intensity of inspection or stress testing
What are the three performance classes? - 1-General Electronics 2-Dedicated Service 3-
High reliability
Who is the end user? - The end user is the individual or agency that contracts the printed
board or assembly to be designed and manufactured
Who determines the class of a product? - The end user
What would be in class 3 performance? - Military, medical, etc.
What is ambient temperature? - The surrounding environment that comes into contact
with your product
What do producibility levels tell us? - Increasing complexity of tooling, materials, and
processing. Yields increase as costs decrease, etc.
What increases with each producibility level? - Sophisitication
, What is the zaxis aspect ratio? - Ratio between the nominal thickness of the board and
the smallest drill size.
What is the most important special consideration in terms of electrical functionality that a
designer must consult the EE? - Special keep out or keep in areas of the board.
Where should high frequency circuits be placed? - NEar the connector
Where should filtering caps be placed? - Near the source of power/gnd (at the
connector)
What is least important to route in analog circuits? - Power and ground
What is a major consideration for component placement? - Will backwards compatibility
be necessary?
What is Ohm's law? - V=IR
What is an important basic rule for a designer of a board? - Terminate unused logic pins
with a pull-down or pull-up resistor.
What product safety testing regards flame retardants? - UL 94
How thick is half ounce copper? - 0.7 mils (17 um thick)
What is the subtractive process? - Unwanted copper is etched away
