![Tube Time on Twitter: "annotated cross section (closeup) of a modern BGA-packaged SoC. you can see the individual fiberglass bundles embedded in epoxy that make up the PC board substrate! also check Tube Time on Twitter: "annotated cross section (closeup) of a modern BGA-packaged SoC. you can see the individual fiberglass bundles embedded in epoxy that make up the PC board substrate! also check](https://pbs.twimg.com/media/D8LSzkYUEAEXnAK.jpg)
Tube Time on Twitter: "annotated cross section (closeup) of a modern BGA-packaged SoC. you can see the individual fiberglass bundles embedded in epoxy that make up the PC board substrate! also check
![Inspection and Measurement of Solder Cracks and Voids | Electronic Device Industry | 4K Digital Microscope - Application Examples and Solutions | KEYENCE Canada Inspection and Measurement of Solder Cracks and Voids | Electronic Device Industry | 4K Digital Microscope - Application Examples and Solutions | KEYENCE Canada](https://www.keyence.ca/Images/ss_vhx-casestudy_e_soldering_007_1859440.jpg)
Inspection and Measurement of Solder Cracks and Voids | Electronic Device Industry | 4K Digital Microscope - Application Examples and Solutions | KEYENCE Canada
![Tube Time on Twitter: "annotated cross section (closeup) of a modern BGA-packaged SoC. you can see the individual fiberglass bundles embedded in epoxy that make up the PC board substrate! also check Tube Time on Twitter: "annotated cross section (closeup) of a modern BGA-packaged SoC. you can see the individual fiberglass bundles embedded in epoxy that make up the PC board substrate! also check](https://pbs.twimg.com/media/D8LV0uLV4AAnISD.jpg)
Tube Time on Twitter: "annotated cross section (closeup) of a modern BGA-packaged SoC. you can see the individual fiberglass bundles embedded in epoxy that make up the PC board substrate! also check
Cross-sectional schematic of wirebonded text BGA package. (Not to scale.) | Download Scientific Diagram
![Optical Micrograph photographs of cross-sections, arranged in a matrix... | Download Scientific Diagram Optical Micrograph photographs of cross-sections, arranged in a matrix... | Download Scientific Diagram](https://www.researchgate.net/publication/289859903/figure/fig8/AS:616533353058318@1524004414480/Optical-Micrograph-photographs-of-cross-sections-arranged-in-a-matrix-format-of-the.png)