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History of PCBs PPT1 NonTechnical

Last update: 05/08/2025

History of PCBs PPT1 NonTechnical

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1. What are two alternatives that were used before PCBs became standard?
Gerber files and silkscreen Solder mask and CAD Wire wrap and point-to-point construction Surface mount and through-hole
2. Who is considered the father of printed circuit board technology?
Charles Ducas Thomas Edison Paul Eisler Max Shoop
3. What innovation did Charles Ducas patent in 1927?
Auto-sembly process Photoresist printing Electroplating circuit patterns onto surfaces Flexible PCBs
4. What year did the USA begin using PCB technology on a large scale for military purposes?
1936 1943 1948 1950
5. What was a major milestone in 1947 related to PCBs?
First use of FR4 material Start of multilayer PCBs First double-sided PCB with through-holes CAD software introduction
6. What was the primary metal used before copper became standard in PCBs?
Aluminum Silver Brass Tin
7. What organization was formed in 1957 to standardize PCB manufacturing?
US Army Signal Corps IPC (Institute of Printed Circuits) MCL UL (Underwriters Laboratories)
8. What advancement in the 1960s made PCB manufacturing more efficient?
3D printing Fully additive copper process Electroshock plating Polycarbonate layering
9. What major shift occurred in the 1980s regarding components?
Integrated circuits were banned Through-hole components became required Surface mount technology replaced through-hole Boards became larger and less complex
10. What is the significance of High Density Interconnect (HDI) boards introduced in 1995?
They replaced copper with fiber optics They used only single-sided boards They enabled micro-via technology for smaller, denser circuits They removed the need for solder mask