Electron Beam Lithography

[@watchspotting]

It's 2 AM and here I am learning about photolithography

[@Time-cc2qb]

Same

[@ddd15557]

almost 3am ;D

[@ChandanKumar-dv1wl]

Kon se branch se ho bro aur kon sa college?

[@saisriram4262]

Engineer

[@alo1236546]

So u know how to use the sun beam

[@jerryyang2202]

usually leaving a metal film pattern on silicon, first deposit a metal film on top of silicon substrate either PVD or CVD, then applied photo-resist on top of metal film, then define the pattern by lithography , then develop the photoresist , then etching process remove the unnecessary area , finally remove the resist film.

[@SarvanCreation]

Its a very good information and knowledge thank you sir

[@nighthawkviper6791]

Or even the specific pattern to diffract visible light. -Cloaking-

[@grunty144]

How did they developed the "resist" tool to print on the waifers in the first place?

[@mahoneytechnologies657]

Hewlett Packard was doing this in the early 1980s!

[@ChristianStout]

Is this also known as "direct-etch lithography", or is that something completely different?

[@donoi2k22]

How are the masks printed so accurately?

[@MOHAMEDBRAHAM1986]

Using ebeam lithography to write masks

[@radhikapriyadarshini111]

masks are designed generally Using CLEWIN software, later they are written on soda lime Cr coated masks, written and developed perfectly using optical direct-write lithography system (ex: upg heidelberg machine)

[@brooks274]

It takes forever, but its a very accurate process.

[@Ljosi]

The first masks were done by hand and later those computers made with those hand made masks were used to make more precise masks and then those computers were used to make even more precise masks ad infinitum.. Similar to how the first ever program had to be written by manually setting the flip flops in RAM and later that program was used to write other programs by using a keyboard etc. Kind of a self bootstrapping progression

[@imqwerty5171]

Light can bend around small obstacles so how does photo lithography work because the mask would have super tiny details in it and light can just bend around it and fall all over the resist?

[@santaislam716]

Easy to understand. What is used as substrate on which resist is coated? Thank you

[@radhikapriyadarshini111]

substrate depends upon the requirement ex: MEMS SOI/ Optics Si02/ SAW filters Quartz etc.

[@unvergebeneid]

For chips: silicon.

[@cosanostra8341]

thank you very much for the video. Could you please tell me what are the reasons of the apparance of the stitching lines and why some lithography machines cause this problem and others dont cause this problem?? thank you!

[@aravindbalakrishnan4254]

Thank you sir. This is very useful in such a way like me also understable.

[@Jkauppa]

how much data as byte or bits as 1x1nm squares per eletron beam writing to manufacture a whole semi disc at one "write"?

[@Jkauppa]

would you do a prototype (for me) starting a dvd-rom/rw drive with vacuum, electron-xray-sem and multiple ion-plasma-deposition print headers

[@Jkauppa]

contact my business address if interested, I'm a microelectronic IC professional developer and designer

[@Jkauppa]

starting with hard drive sem disc drives, clear and set operations

[@aymenbouhentala7978]

great job sir thank you very much for the great explanation

[@Toumakamijou1]

Song???

[@kajal55772]

best video on lithography

[@peymanfiroozy3602]

Great explanations, thanks! What software do you use to create these videos?

[@nilupulpiyumantha2108]

Thanks for the explanation🔥

[@tanwiransari]

Good explanation...

[@xxlifestonerxx2085]

So this is how its done.

[@nighthawkviper6791]

Great way to make a smart skin for a WEAV

[@Hz-mp8pj]

Nice :)

[@NoReplyAsset]

👀👀👀 sounds like silkscreen printing tbh

[@ozzyozz4494]

Good video

[@ichabodon]

I was lost in the first ten seconds! But still interesting

[@sabrinacheah14]

thank you so much

[@ЕвгенийБагрянов-н9э]

NIL and X-ray lithography: Am I a joke for you?

[@juancarlosdominguezsolis.4665]

resist what compount is?

[@Raith]

Most EBL resists are polymers like PMMA

[@Inderjitsingh-hn1gh]

Brilliant

[@jinsubpark7317]

easy to understand

[@gunterstruck6838]

cool 🙂

[@NickyNightShine]

So if EBL can go past 10nm why does Intel insist on EUV? Cost?

[@shadowshadow2724]

printing chips with EBL is slow so it used just for making masks and prototyping but EUV used for mass production ,it shines the light and it pass trough the mask and you have the pattern in silicon wafer .

[@AlexJoneses]

its like saying "my 3d printer can make such detailed intricate models, why does injection molding even exist," mainly because int his case, 3d printing is used for prototyping, but is far too slow and costly to mass manufacture, which is where injection molding shines because it is faster and cheaper (after you've made a certain amount of parts)

[@sukhendumaity8028]

Dear sir I need operational manual for elphy quantum

[@teatree6228]

This is the one invented by China photolithography machine

[@vortexronin6448]

Wrong vid title,this is photolitography not laserbeam litography…

[@jdujnd173]

Bruh ancient pyramid layouts n shit are obviously fucking computer chips dude . WTh . That shit all hella covered in quartz dawg

[@alokms9052]

005

[@alokms9052]

😍😘😘😍😘😍

[@robertmanrique1509]

{Lower the annoying background musak.}

[@robertmanrique1509]

...pleeeeeezz

[@hashim64]

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