ACCURATE ANSWERS |UPDATED 2025\26
Terms in this set (108)
What do performance classes Progressive increases in sophistication, functional performance,
reflect? and frequency/intensity of inspection or stress testing
What are the three performance 1-General Electronics 2-Dedicated Service 3-High reliability
classes?
The end user is the individual or agency that contracts the
Who is the end user?
printed board or assembly to be designed and manufactured
Who determines the class of a The end user
product?
What would be in class 3 Military, medical, etc.
performance?
The surrounding environment that comes into contact with your
What is ambient temperature?
product
What do producibility levels tell Increasing complexity of tooling, materials, and processing.
us? Yields increase as costs decrease, etc.
What increases with each Sophisitication
, producibility level?
Ratio between the nominal thickness of the board and the
What is the zaxis aspect ratio?
smallest drill size.
What is the most important Special keep out or keep in areas of the board.
special consideration in terms of
electrical functionality that a
designer must consult the EE?
Where should high frequency NEar the connector
circuits be placed?
Where should filtering caps be Near the source of power/gnd (at the connector)
placed?
What is least important to route Power and ground
in analog circuits?
What is a major consideration Will backwards compatibility be necessary?
for component placement?
What is Ohm's law? V=IR
What is an important basic rule Terminate unused logic pins with a pull-down or pull-up resistor.
for a designer of a board?
What product safety testing UL 94
regards flame retardants?
How thick is half ounce copper? 0.7 mils (17 um thick)
What is the subtractive process? Unwanted copper is etched away