MITPCB Training Summary
Index
What is HDI How to fabricate HDI Current key technology
Laser drill Copper fill 0.5mm pitch BGA with 3/3 mil line
New technology
Direct Laser Drill 3Steps HDI 0.4 mm pitch BGA with 2/2 mil line
Design For Manufacturing Panelization rule
MTG Confidential
What is HDI?
HDI is short for “High Density Interconnections”. It means the PCBs that contain the high density build-up layers. Micro vias are the principal feature of HDI, along with thinner dielectrics and smaller traces and spaces.
BGA/SMT Device Laser or Photo Microvia Hole in Pad
PTH
Stacked Microvias Mechanically Drilled Buried Via
FR-4
Pre-preg
High Density Build-up Layers
Solder Resist
Gold
MTG Confidential
Different type of HDI
By steps
1-HDI
Non stacked 2-HDI
Stacked But Non Copper fill……
