What are PCBs? || How do PCBs Work?

What is inside of PCBs? Smartphones have dozens of components, and they are all connected thru a vast labyrinth of wires inside the PCB! So how exactly do PCBs work?

Twitter: @teddytablante
Made by Teddy Tablante

Table of Contents:
0:00 Intro: Enter the PCB
01:11 Section 1: What is a motherboard?
01:45 Section 2: X-Ray Image of PCB & Wires from the SoC
03:38 Section 3: What are the layers of a PCB?
05:00 Section 4: Pursue STEM Careers!
06:29 Section 5: Vias and holes in the PCB
07:55 Section 6: Different designs of PCBs, Sizes, Weights, and Thru hole
09:22 Outro: Summary and Branches

Background Understanding: Wires, Power, Ground

Key Branches from this video are: PCB Design, PCB Manufacturing, Solid State Drive, Supporting Chips, System on a Chip, Wifi Chip

Erratum:
Via is a backronym or apronym. 99% (except the Wikipedia article about them) of people don't use the phrase Vertical Interconnect Access, it's just called a via.
10:06 Manufacturing misspelled as Manufacutring

#PCB #Smartphone #Howitworks

Post with Adobe Premiere Pro and Adobe After Effects
Sound editing with Reaper

Work Cited:

"PCB Layout Recommendations for BGA Packages." Lattice Semiconductor. March 2017

"Printed Circuit Boards, Technical Engineering Guide." EPEC.

"Rigid PCB Design For Assembly Guide." Bittele Electronics Inc. September 13th, 2018

"Rigit PCB Design For Manufacturability Guide." Bittele Electronics Inc. October 04, 2017
"Qualcomm Snapdragon 808 MSM8992. Notebook Check.

Schweitzer, Albert. "PCB Layer Stack-up" Fineline Technical Workshop. September 2015

Wikipedia contributors. "Computer" , "Electronics" , "Flea","Printed circuit Board", "Surface Mount Technology", "System on a Chip", "Through-Hole Technology"  Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, November 26th, 2019.

Yap, Charley. "How to Successfully Design a BGA." Altium, October 26th, 2016

Image Attribution:

Ifixit Smartphone Teardowns for:
Google Pixel 4XL: Jeff Suovanen
Samsung Galaxy Note 9: Arthur Shi
Iphone 8: Andrew Optimus Goldheart
Huawei P30 Pro Teardown: Dominik Schnabelrauch
OnePlus6: Jeff Suovanen
LGV20: Dominik Schnabelrauch
LGV10: Me! Teddy Tablante
Nintendo Switch: Jeff Suovanen
Samsung Galaxy S8: Sam Goldheart
Iphone X PCB: Andrew Optimus Goldheart
Iphone X X-Ray: Sam Goldheart

Music Attribution in Order:
Morning Dew from YouTube Audio Library
Above Planets by Patrick Patrikios from YouTube Audio Library
Stars and Constellations by Sarah the Instrumentalist from YouTube Audio Library
Gently Onwards from YouTube Audio Library
Sunburst, Tobu & Itro is licensed under Creative Commons Attribution License

[BranchEducation]

Which video topic do you want me to explore next*? I would like to know what you would like to learn more about and what I should prioritize. Potential Smartphone/Tech topics are: SSDs, LCDs, Wifi, Microchips / SoCs, RAM, GPS, wireless charging? Or I can jump into other topics like Quantum Computers or Satellites? Or would you like more conceptual engineering/physics topics such as 'What is temperature?' Note that next* means I'll work on it after the video I am already working on.

[pravinladde]

I am a PCB designer.. and every PCB designer should watch this animation before he start/choose this as career... Such an inspiring animation.

[JaredOwen]

Teddy you took this video to the next level. I learned a ton! Keep it up

[uwwqrjg]

This is what I call an educational animation, amazing graphics and great presentation

[JerryRigEverything]

Dude your videos are epically brilliant.

[EEVblog]

Damn that's impressive, well done!
I can appreciate the work that went into that.

[ZackXa]

The little break in the middle I was expecting a paid advertisement, was pleasantly surprised. I really appreciate that plug and agree 100% :)

[hellohypo]

I'm a simple man. When people tell me what the distance is in both meters and feet, I'm happy.
Thumbs up and subscribed

[KC_Smooth]

It’s fascinating enough to picture this being made on a large scale, like the size of a table. It’s absolutely mind boggling that they shrunk this massive electronic city down to something that fits into your pocket.

[hritikroushan]

I am an engineering student of ECE and these videos give me a lot of inspirations. Thanks a lot to Branch Education.
Lots of love from India.

[fxbear]

I love your series. I worked on a main frame as a teen, making sure core memories were not compromised. We didn’t have home computers yet so I learned FORTRAN and cobol from a book, writing code with pen and paper, then pretending I was a computer and executing my code by hand. Back then, if code didn’t run from top to bottom cleanly, it was considered bad code. That made object oriented coding difficult for me to learn later. Things are so complex now, I feel like I’m starting over and your videos have helped tremendously. Whoever is doing your animation is doing a fantastic job. My career took me through post production and game animation so I appreciate the work displayed here.

[DraRed]

Mind blowing. This video highlights just how impressive the engineering behind our devices is.

[petermainwaringsx]

I remember when I used to be able to repair stuff with a soldering (not a silent "L" in the UK) iron and a few hand tools. After watching this video I don't feel so bad about not being able to do that anymore. Another wonderful video from you, and thanks for your efforts.

[albertlee]

Can you please do a video on the "making of this video". Thanks.

[MrGarda]

This is possible one of the best animations I've seen in this kind of a video. Hats off matie 🍻🍻

[tedzusa]

Did you really take apart a cell phone, and de-solder all of the surface components to make these 3D models and graphics? Truly incredible work! I admire the work you do to make accurate, compelling, and clarifying visualizations for your videos!!

[aaseemshaikh]

I wish I could give thousands of like to these video

[paulwaldner]

This video very well describes what PCBs are. I have only a couple of small little quibbles with the video: the video doesn‘t show the large scale end of networking PCBs and it doesn‘t explain how with the use of flex-rigid PCBs, the number of connectors in a device are greatly reduced and signal integrity is greatly enhanced.

But again these are truly quibbles! This is an excellent overview of the humble PCB using the modern cellular phone as a “show-and-tell” vehicle. I have worked in the PCB industry for nearly 50 years now and can attest to the great and accurate job you have done here in making this video.

[isaacllanas]

Dude you are an inspiration to the new generation of Electrical Engineers, keep on with your good job!

[hafidzkadir]

Dude.. I am an engineer recently taking care of reworking PCB.. I was kinda lost on where to start my career.. But when I watch your video, now I have clear vision to carry out my task.. Lots of thanks from Malaysia 🇲🇾