Design considerations
4 important questions on Design considerations
Why is moisture absorption a concern to the designer?
- It changes the electrical characteristics in the material
- it can alter dimension configuration
- It can cause potential difficulties in assembly
How is laminate material specified in a material code designation!
- type of material
- dielectric thickness: does not include metal cladding
- copper foil designation
- pit designation
- thickness class tolerance
- bow and twist designation
Sum up different types of assemblies what requirements do they carry with them?
- through-hole
- surface mount technology
- ball grid array
- chip scale packaging/HDI
- mixed technologies
- Higher grades + faster learning
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What's the difference between Burn-in and HAST?
- Burn-in: to catch early failures
- HAST: to test the product to failure
The question on the page originate from the summary of the following study material:
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