What you will learn:
HDI definitions, types and markets: Not all HDI products are the SAME!
History of HDI: It helps to understand why HDI was developed in 1982
HDI fabrication problems and issues: Some of the hurdles
- Via formation — mechanical and laser drilling quality- scoring quality in various materials
- Metallization — desmear, electroless copper, direct metalization and semi-additive processing
- Imaging and etching — achieving fine lines and spaces, controlled copper etch
- Electrodeposition — improved throwing power, enhancing through hole and microvia plating
- Reliability issues
- The use of coupons
How to develop a robust HDI process: Tools HP and others used for reliable HDI
HDI future: Ultra-HDI and next generation: Moving to Ultra-HDI and the new 3D HDI architecture
Additional references and reading: Free eBooks on HDI
Appendix of useful tools: Engineering Statistics Handbook
You can start asking your questions in this thread.
