What are PCBs? || How do PCBs Work?

[@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.

[@MrAkshaydude]

Ssd / memory management

[@Mohammad-iw8cl]

microchip or SoCs

[@RohitKumar-us8my]

Rectifier

[@rampawar]

Oleds and other display technologies

[@TechMyo]

The name of a transistor depends on which factor?

[@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.

[@reyariass]

How do you go about designing a PCB? I feel like it’s more of a puzzle where you just try to fit the components you’ll be using onto the board

[@totallyfrozen]

@@reyariass According to what’s presented in the video, I’d assume you’d need a mission (what are you tryin to do?), a plan (what do I need?), and a design (how can I fit all this?). Then design the PCB. The components are subordinate to the design. You select the components to match the PCB, rather than designing the PCB to fit the components.

[@JamieVegas]

@@totallyfrozen There are tools that do autorouting of traces for you. They help find the optimal locations to fit everything.

[@dewaldsteyn1306]

Oh ok then i can ask you this because google has no answers and this guy dont find or read my now deleted comment: what type of steel and so on do you use to make this thing?

[@pravinladde]

@@reyariass First we design a schematic with all component (eg- IC's, resistors, capacitors etc) which actually is an electrical circuit with its connections. then each component also have its landing pattern (footprint) associated with it. Then we start actual board design. PCB designing tools help us showing connections between pins of components from the schematic. then we place each component on some fixed board size such that there will be minimum overlap of signals. we route the tracks and send this design for manufacturing. hope you got at least bit picture.

[@JaredOwen]

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

[@BranchEducation]

Thanks!! I'm glad you enjoyed the video!!

[@shivam4428]

@@BranchEducation yes bro... Awesome content .... I am waiting for videos. Start about devices used in jet fighter and laptops

[@vighnesh.acharya]

I am happy to see your comment here 🥰 I love your videos also 😍

[@KamrulIslam-oj6io]

Jared owen sir i want be your friend of Facebook or whatsapp.... My whatsapp number [phone]. And Facebook link = m.facebook.com/profile.php?ref_component=mfreebasic_home_header&ref_page=%2Fwap%2Fhome.php&refid=8&ref=dbl

[@KamrulIslam-oj6io]

I will wait for you my lovely sir

[@JerryRigEverything]

Dude your videos are epically brilliant.

[@BranchEducation]

Thanks!! I'm glad you enjoyed the video!

[@princeancheta4041]

Love your vids, can you review huawei nova 8 se? it seems great

[@TruongVu-s7w]

Maybe photolithography in IC production has a similar way of doing it

[@Bullresearch-India]

You rightly said that....

[@loaded6666]

See they don't break things :)

[@user-uw1wq9rj8g]

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

[@BranchEducation]

Thanks! I'm glad you liked it.

[@blitz8229]

True!

[@EEVblog]

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

[@RandyLott]

Now I know why KZbin recommended this video. Been watching you for nearly a decade, Dave! I think I've watched at least 1000 full videos.

[@Ghost-ut3hq]

Now I now why I got this great video suggested.

[@hellohypo2009]

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.

[@ZackXa]

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

[@albertlee638]

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

[@pinnaclemindset8985]

Me too

[@hritikroushan6068]

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.

[@aaseemshaikh8164]

I wish I could give thousands of like to these video

[@BranchEducation]

That would be convenient if people could give multiple likes.

[@blitz8229]

:D hahaha

[@DraRed73]

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

[@lostinbizz]

hi sir I am a student who is inspired by your informative videos and on the path to become an electronics and communication engineer sir i am goig to start my journey in field of electronics next month i.e. start of my engineering journey. thanks alot for inspiring me and others.

[@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.

[@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.

[@MrGarda42]

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

[@BranchEducation]

Thanks you tons!!

[@brodriguez11000]

Still wondering how it was done.

[@arionulibasa]

@@brodriguez11000 same. I wonder too

[@hafidzkadir7614]

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 🇲🇾

[@Gauravkumar-so6ip]

I knew that you must have done a lots of hard labour to present this beautiful knowledge infront of us....... Thanks a lot ☺️ Keep it up

[@BranchEducation]

Thanks!! I'm glad you enjoyed it.

[@stephensnell5707]

​@@BranchEducationthis Video is just amazing and it shows how advanced Smartphones really are

[@wurzeln8817]

Thank you for making these videos. Im from a poor country where information like these are very scarce. So having high quality education for free is helping me out greatly. Thank you so much

[@tedz2usa]

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!!

[@paulwaldner1693]

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.

[@rayer2641]

Wow, such clarity in your presentation, excellent quality graphics. Keep them coming. Quantum computing and AI could be fun topics to hear about.

[@BranchEducation]

Thank you!! I have some really good visuals for quantum computing that I'll use once I get to that episode.

[@humankibo1560]

I learned from you more than even I could be learning in school for 10 years. Thanks, a lot man; your explanation is Immaculate.

[@isaacllanas2828]

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

[@randomelectronicsanddispla1765]

The amp hour podcast (eevblog) pointed me to here. I'm glad it did. The amount of work and detail is amazing

[@DeoMachina]

The animation combined with the 3D models and real photographs is exceptional, this deserves to be a huge channel. I work in electronics production and even I didn't know some of this! I gotta say though, making these things is way, WAY easier than fixing them. I've seen some uh, interesting PCB designs too :P

[@BranchEducation]

Thanks for appreciating the video! It is SO much easier to make them than fix them. I've fixed traces on a 4 layer board with grinding and scratching out inner traces, but I have no clue how I would go about fixing a 10 or more layer board.

[@DeoMachina]

@@BranchEducation Honestly at my place we don't even get involved with trace repair, its components only and even then there's so much that can go wrong with board population!

[@Mike_droptv]

​@@BranchEducation I guess you're already aware of that :D, but no one fixes broken wires anymore. Most pcb's are modular, so you can easily swap out a broken pcb for a fresh one. The most you get is replacing a broken BGA, which is already a pain :D

[@BranchEducation]

@@Mike_droptv I'm familiar with that. I have in fact reworked PCBs in the past because of design errors. Cutting traces, rerouting, and reworks, in general, are a pain, but sometimes ya gotta do it to get design verification before respinning the boards.

[@Mike_droptv]

@@BranchEducation Oof, that sounds like a hoot and a half. Fixing broken pcb's is one thing, but correcting design errors on the internal layers is just... these anxietys are kicking in again :D Awesome video btw, love your work 👍

[@SuperGGLOL]

how advanced is this? This technology is so vastly complicated and the necessity of precision (wire's not touching each other yet so close) makes my jaws drop.

[@justinalyne9573]

Hey Teddy! I just wanted to say thanks for making this video. Currently, I'm a college student studying to become a computer engineer. I 100% agree that more people should get exposed to these STEM-related fields. Technology will always grow; for example, when I experienced it in grade school, we transitioned from homework/lessons on paper to Chromebooks. Even during COVID, many schools use online resources to continue their education, thus influencing new ideas for how teaching in schools should be done. Overall, we would not be at this point in our lives with easy access to the WEB and other vital tools/resources if it wasn't for the thousands of STEM-related inspired students in the past. I also encourage others who are considering an education in a STEM-related field to give it a go as you never know what creative genius inventions you could produce to push the human race forward.

[@adam_a923]

I absolutely love taking electronics apart and learning how circuit boards work! Thanks for this video, it explains a lot!

[@joelwong62]

Superb job on this video! (It's the only in-depth one I could find on PCB's so far). One reason I really like smartphones is the embodiment of so many separate and complicated technologies, yet all working in harmony to deliver a good experience to its users. Please continue on!

[@np7145]

Your passion for explaining things is what blew my mind

[@para4436]

The intellectual stimulation I needed.

[@NguyenHaNhutLong]

This is an amazing video. My professor cannot even explain how PCB work in one quarter, but I find this video is very helpful. Recommend those EE students watch this video before then move onto designing the PCB. Thank you for the video!

[@BranchEducation]

Thank you so much!!

[@colejohnson4941]

Wow, amazing job. I already knew pretty much everything in the video, as I'm a computer engineer, but I stuck around because the animations and production quality were beautiful.

[@BranchEducation]

Thanks tons! What type of computer engineering are you in?

[@hullinstruments]

This is a masterpiece. This is just as beautiful as vintage IC chips. You know the ones I’m talking about… gorgeous chips with purple/white ceramic, Luscious gold pins and details, and visible traces on the surface of the ceramic. This video is just as incredible! They are both amazing feats of engineering, and artwork!

[@Masterr59]

This channel was an immediate subscription because of how organized and detailed your videos are. Your animations and research, it's wonderful and I really admire that effort. I'm excited to learn more and will happily share this!

[@BranchEducation]

I appreciate it! Tomorrow I'll upload an even more detailed video! Hope ya like it.

[@yaduvanshi_jitin_yadav]

Nice Video, Watching It From India❣️

[@mdt9921]

This channel is highly underrated. The animations are done very well, the audio is clear and easy to understand and everything ties in. Keep up the good work!

[@johndinsdale4471]

I am stunned not only by the content and presentation but also by the animations to help the understanding of this material. I have seen remarkable progress in engineering and science in my 70 years of life and cannot begin to imagine what the next 70 years will produce. How exciting to be young enough to be involved.

[@PCBWay]

It's so informative and well-explained about PCB. Good job !👍

[@brentnelson3703]

Supported by a famous PCB manufacturer 😉

[@bdmpynursla2596]

Books on pcb can never match the knowledge conveyed in this tutorial..you Sir just made it so simple to understand.hjankyou..

[@moritzfriedrich]

As usual, this is an absolutely amazing video!

[@BranchEducation]

Thanks!! It's much appreciated!

[@ngawangtsering9730]

It's so amazing I am truly appreciate hundreds and thousands of the scientist and Engineer who created.

[@vypmnoo0]

Wow this was really amazing and thoughtfully well put!! It is very clear that the amount of work put for just one video was beyond what most people do!! Loved it!

[@learnnewfoodworldwide8806]

Thanks a lot for this video. If not you hosted this, this wouldn't have been that awesome

[@kurtemoyo3182]

Amazing explaination. This is the new way of learning. Reading it the concept will took a lot of time and processing, but you explained it in a very simple and understandable manner. Great job Teddy! Keep going and inspire the next generation!

[@SK.The-Machine-Designer]

Year 1992 I was a 16 year old boy I made a wireless transmitter and receiver myself, for that I got some awards, now i'm a professional machine tool designer. I really wonder the development's in this electronic industry especially in mobile phones technology. Your multi layer PCB animation was superb thank you.

[@abdurrehmanhafs7430]

I really love it Tnx so much for explaining. God bless us.

[@BranchEducation]

Thanks! Glad you enjoyed the video.

[@BorselinoThadchack]

4 years after, I still love what you do . Thank you!

[@Wingedmechanic]

For those who wonder how those intricate labyrinth of wires end up there so precisely, They are not put there, but formed from a sheet of copper over the FR4 or phenol board by removing the copper from the areas where it is not required. It is done by applying a protect pattern mask over the copper sheet where wires are to be, and then dissolving the unprotected areas of copper in a chemical acid or salt solution. It is called etching.

[@leechjim8023]

Sounds similar to how the chips are made!

[@ariyonaty]

So glad to have stumbled upon this video. As a student currently studying computer engineering, I have yet to find a professor who, although brilliant, can convey a topic with such clarity. I'm sure this was a difficult and time-consuming video to make, but know that we appreciate each hour spend and it truly is inspiring to see the genius in this video. Will most definitely share with classes!

[@BranchEducation]

Thank you tons, especially for sharing it with your class.

[@shlok975]

8:51 those components are still called through hole components and they are still used today by hobbyists especially as they can be easier to solder.

[@BranchEducation]

I still have a ton of these components in a slew of plastic bins.

[@hemendrasahu7943]

I read it somewhere you (Teddy) left your job at semiconductors to educate people with quality teaching. Thank you, Teddy, for your generous work 🙏🙏🙏

[@BranchEducation]

Thanks a ton! Yeah, the semiconductor industry was a ton of fun, but I believe that engineering education has a lot of potential and is in need of reinvigoration.

[@hemendrasahu7943]

@@BranchEducation I have read the mission/vision page on your website and one line says: "The focus overall is to teach systems in their full complexity", your work itself is a reflection of your mission, Sir. I hope your videos get watched by everyone who needs to watch it.

[@rampawar]

Very detailed animations and best explanation. Thank you for this interesting video

[@BranchEducation]

Thanks a ton!

[@shenoaglasgow988]

I also have to say, I actually learned answers that I've been looking for... thankyou for your accuracy...the fact that knowledge can be precise and to the point is helpful and not boring!

[@ayushdaas]

Jay shree Mahakal, sir G ❤

[@raphaeloberhummer5071]

I'm an electronics (no PCB-designer), but this video helped me to understand the thing I work with.

[@HarmonicWave]

It feels so mind-bending to realize I'm watching this video as the PCB in my smartphone is active in processing it... Kind of the same feeling I get when I watch a video about the human brain and realize my own brain is processing the information about itself. Woah.

[@mandeep5993]

This is one of the videos where you get glued to the screen with astonishment. I was like Wowwwwww ( literally with lots of w). This is beyond amazing. More power to you.

[@Mohammad-iw8cl]

i did shared and subscribed .. anyone else ?

[@BranchEducation]

I did too!

[@ngongachansa1701]

You can explain it well enough, so you know the stuff. I enjoyed every bit of it....thanks

[@b_40_princekumargupta51]

Just amazing 😍😍😍can i know your qualifications ...if you want to share

[@BranchEducation]

Before dedicating my work to these videos, I was a Systems engineer for Ion implanters in the semiconductor industry. I got to see a lot of the microchip fabrication process. At university I got a degree in both Electrical Engineering and Mechanical Engineering.

[@a2.Milk85]

Hands down one of the best educational videos I have seen. This is pretty much Discovery 2.0. Thank you kindly

[@mayonnaisetheinstrument4305]

"There is one football field..." And that, kids, is how i knew he was american

[@RandyLott]

I'm a Senior Electrical Engineer with expertise in ultra miniature electronics designs. Very nice presentation! Another important factor is high-speed signals require controlled impedance, which is determined by the material properties and geometries of the features on the board. Very complex physics principles at play (electromagnetism)!

[@BranchEducation]

That's a very good point that I should have added, if at least in a sentence or two. Thanks for the input, and for enjoying the video. What's an example of ultra miniatures electronics?

[@RandyLott]

@@BranchEducation it was still an exceptional video. I've designed very small IR cameras (20mm x 20mm x 18mm), GaNFET laser pulsers, and many other electronics to interface to custom image sensors. Cell phones probably take the cake for some of the most complex, miniature electronics. Still, the pixel pitch of IR detectors (we have the world's smallest at 5um) is typically larger than visible detectors due to the physical materials (indium gallium arsenide, mercury cadmium telluride, ect.). The problem with Mid-Wave IR (MWIR), is that the materials have to be cooled down to 100 Kelvin or below to function properly due to thermally excited current carriers.

[@beondshreya_4286]

Hello

[@ronitroy8333]

Wow, this man make my curiosity

[@beondshreya_4286]

Frim Lucknow

[@betrp]

Learned something new! Are you kidding me I learned many things here Appreciate your hard work

[@techmateaniketgade]

Teddy You cleared my all doubts about motherboard its components and its working from ground level...thank you.. Love from india🇮🇳

[@aaronw2522]

Wow. This man is very knowledgeable and speaks with much clarity. I'm thankful for this video. I hope I can learn more about this soon.

[@TECH2AUTO]

Hats of for your HardWork i am not a student Don't have much Qualifications But always wanted to Learn Technology what it takes behind these magical Devices A Hardworker Person like You DESERVE much more for making People understand The Complicated Engineering

[@supreetb6453]

Your videos are very informative animated ones! I downloaded 14 of them and this was 9th one. Technology is important and interesting, it is necessary there must be an explainer like you as well.

[@tarikudereje1374]

you are really very kind person! sharing this knowledge is more than giving a lot of money for me thank you go on!

[@BranchEducation]

I'm glad you enjoyed the video!

[@RegnoDEzio]

peak of human innovation

[@furkanayas3339]

I am Msc Computer Engineer, the guy give the live of the devices. I am able to design pcb but thanks to hardware designers and their sub teams, they are developing way more complex pcbs than we can do.

[@737Garrus]

Had no idea PCBs were THIS complex!!! They're exponentially more complex than I ever thought possible! Mind Blown!

[@muralidharan6755]

thanks for the great video... these things never taught in school nor never studied so much detail in my engineering. clear and excellent detailed informative video about PCB. Teddy you are awesome

[@redheesh]

One of the best channels explaining working of electronic gadgets and technology in detail. Great work. Thank you.

[@floodychild]

Big thumbs up for the mid-video message, inspiring people to pursue a career in STEM. Great appreciation shown to those that make our smartphones a thing.

[@Decco6306]

Wow. this is a no BS explanation on how a pcb works. thanks for this.

[@iyadbin9489]

Wow..the best animated educational vedio I have seen so far on youtube

[@Limeayy]

i appreciate this animated video Branch Education. Keep up the great work! THANKS!

[@BranchEducation]

Will do!! Thanks for watching.

[@swarnavasamanta2628]

You're the best explanator, you remind people why we should be grateful to engineering of mankind 🙏🙏

[@jay_sanchez7]

This kind of content is favorite on KZbin to watch.

[@Eddie-uh7tl]

This is KZbin gold. I wish KZbin would recommend these types of videos.

[@sosick5163]

You literally created the channel I always wanted

[@profewiase]

That's a great presentation. I've learnt a lot today. I'll come back for more. Thanks

[@JNelson_]

I just started a software enngineering job at a company that makes pcb designing software this really was an impressive and helpful video.

[@BranchEducation]

I'm glad you enjoyed the video! Good luck at the new job.

[@RakeshRoshan295]

Your hard work is appreciated 👏🏻👏🏻👏🏻

[@VIVEKKUMAR-zh1jg]

10 minutes of pure knowledge , honestly learn alot

[@GururajBN]

Very instructive and informative video. The graphics are sophisticated and leave no room for doubt in the minds of the viewer. Never knew that every day I have been using such a complex device. I saw a video on touch screen. Another on SoC. Now, this one on PCB in a cell phone. I hope that one of you geniuses will make a single video explaining cell phones in its entirety. Awaiting with bated breath! I had a client who provided single layer PCBs for entertainment electronics. That was almost two decades. They went out of business because they could not master the technology of making of multi-layered PCBs! Technology ruthlessly discards anyone who cannot keep pace.

[@hamzamoro3554]

Hello, this is the most amazing pcb presentation I have ever seen. I know just a little about pcb but I want to learn more about them and understand how they work so I can diagnose and fix them, being a computer or a cell phone. I would really really appreciate you or anyone here that can point me in the right direction or recommend any book that I can begin or completely learn from. Much regards, Thanks 🙏🏾

[@spellxthief]

i recognized the display of the LG V10 right away with it's small "second" screen at the top right, so it was awesome to see the V10's model with it's side rails

[@CHzwaves]

Brilliant Explanation😍

[@sihlejpromajola1718]

Brilliant animation, top class...💯👏👏 Simple Education that's beyond Varsity levels...

[@Chaosman88]

That is the best video I watched on the subject!

[@josefmazzeo6628]

It's amazing they can cram so much is such a small package! Even more amazing is how the via connections don't introduce shorts and opens from flexing, not to mention ultra fine pitch SMD components and BGAs. This density and complexity is one notch up from the chips themselves.

[@aspirantindranil8246]

This video is the reason which inspires me to take electronics engineering, thanks a lot for such a amazing video.