» Electronics »Glass PCB

Glass circuit board



The author of Instructables under the nickname hdissanayake decided to revive the seemingly almost forgotten (recall B3-04) art of making printed circuit boards on glass. The following figure shows the stages of the process of obtaining a board using photoresist:



1. Covering the material with foil (in the case of glass, this will have to be done do it yourself)
2. Application of photoresist
3. Exposure
4. Manifestation
5. Etching
6. Removal of photoresist

As a blank, the master takes a glass plate, always without sharp edges, and not like this:



On which copper foil will be applied (optimum thickness is 0.05 mm):



Using superglue:



And this is how film photoresist looks like:



The hdissanayake circuit is in EasyEDA:



In the same program, he designs a printed circuit board:



The figure which displays in a negative form, since this type of photoresist goes into an insoluble state under the influence of ultraviolet radiation:



Prints on film:




In this photo, both foil and glass are already degreased with isopropyl alcohol:



And here - they are already glued to each other with the help of superglue, which is important to apply evenly, without air bubbles and uncoated areas, squeeze out excess glue, wait until it sets completely:



The master unsticks the photoresist from the substrate:



And sticks to copper, again avoiding bubbles:



Imposes a printout on the film, presses it with glass, presses with clamps so that they do not block the ultraviolet:



Exposes under bright sunlight for 5-7 minutes, after deleting the printout, the illuminated photoresist looks like this:



Adhesive tape removes the second substrate on the opposite side of the photoresist:



Places in a solution of soda for manifestation:



Washes the solution along with an unlit photoresist:



Alternates development and washing, until the photoresist is completely washed off on unlit portions:



Poisons the plate with ferric chloride as usual:



Almost ready, it seems that ferric chloride dissolved after copper in unlit areas and superglue:



It remains to wash off the illuminated photoresist - if the water is hot, he will succumb. And the art of producing glass printed circuit boards can be considered revived. The board is ready for soldering.So, as shown in the photo, do not hold glass without gloves:



For obvious reasons, there can be no holes in such a board. But this is not so inconvenient. After all, there were no holes in the board in the same B3-04. And now, when there are SMD components for all occasions, it's even easier.
6.8
7.9
7.7

Add a comment

    • smilesmilesxaxaokdontknowyahoonea
      bossscratchfoolyesyes-yesaggressivesecret
      sorrydancedance2dance3pardonhelpdrinks
      stopfriendsgoodgoodgoodwhistleswoontongue
      smokeclappingcraydeclarederisivedon-t_mentiondownload
      heatirefullaugh1mdameetingmoskingnegative
      not_ipopcornpunishreadscarescaressearch
      tauntthank_youthisto_clueumnikacuteagree
      badbeeeblack_eyeblum3blushboastboredom
      censoredpleasantrysecret2threatenvictoryyusun_bespectacled
      shokrespektlolprevedwelcomekrutoyya_za
      ya_dobryihelperne_huliganne_othodifludbanclose
22 commentary
Valery
a guillotine is provided for this case
I would also add a trap and voltage supply, let him try to call the rescuers in such comfort! xaxa
Taras
Idea for Kinky Electronics
Is it easier to open the door from a smartphone? scratch
If the password is entered correctly,

If it’s not right - a guillotine is provided for this case and there’s nothing to re-type! ..... boss
Taras
The idea for electronic perverts is a combination lock with a telegraph key-button. There is a blind hole on the door, or in the wall next to it, in which you need to put your hand in and put your index finger on the key and type a password on the key, then the door will open. There is a sensor in front of the key. Laser, or capacitive, or another button, or even a pair of spring-loaded sashes with mikriki. This sensor responds to the presence of a hand in the hole. When you put your hand in, the buffer is discarded, then, so that an outsider doesn’t dial in, the password is set again. I dialed, password, then pulled out my hand - the password is salted, hashed and compared. Well, or compared with a sample stored in clear text. If the password is entered correctly, the door is unlocked and will be locked again in one of two cases: the next time you close it and if it is not opened within half a minute.
Taras
[quote] Senior knows a lot about perversions [/ quote] xaxa[/ quote] But the seigneur, unlike the one who described his craft, really knows a lot about perversions. I wrote basic games and I know what bullshit it is.
Taras
How sideways does server duplication of messages lead to spam? Here is a remembrance of a certain Vstili - spam, judging by the lack of an answer to the question of who she is.
Taras
There is only one bot. It's you.
I explain to everyone. A certain Taras was trying to attack the site. Read, sometimes he sent 3 identical messages in a row. Spammer technique. I disliked all of his messages, thereby already drawing general attention and warned the Community with a number of my messages. I hope the admin also read all this and delivered us from this villain Taras.
At least one after me suspected something was wrong ...
Do you understand who Taras is or not? !!!
Yeah, some kind of spamming crap
Taras
Why iron? Yes, even on the glass
Senior knows a lot about perversions
xaxa
Bot, hike.
Taras
And who is Vstil?
Taras
Quote: Korolev
It seems that LUT is still easier! Yes, and the strength of the glue (on smooth glass) when heated is in doubt.
You do not know much about perversions. Why iron? Yes, even on the glass. Use conductive paste directly on the glass. There may not be any sense, but the crowd of those who are dead will certainly be. Yes, and torment soldering to the paste instead of foil can be better than trying to break the glass with an iron. Or print the whole pattern on the foil. Not on the thermal transfer, but directly on the foil. And then glue it.
Taras
You do not know much about perversions.Why iron? Yes, even on the glass. Print directly on the glass with a conductive paste. There may not be any sense, but the crowd of those who are dead will certainly be. Yes, and torment with soldering to the paste can be better than trying to break the glass with an iron. Or first print the entire pattern on the foil, and then glue it to the glass.
Taras
The topic of mounting the board in the device is not disclosed.
Taras
Soldering components to the board on a cracking base even from hot water is much more interesting than drilling glass, for which there are special drills, and special laser equipment, and even a method of drilling with a copper tube.
Guest Serge
Superglue will fall off when soldering.
Sergio
CNLohr did it 7 years ago
It looks very beautiful. For crafts, steampunk or for making trinkets with backlight would be awesome!
For serious things, unfortunately it is indispensable. But generally pleased and interested in the article.
And now, when there are SMD components for all occasions, it's even easier
It seems that LUT is still easier! Yes, and the strength of the glue (on smooth glass) when heated is in doubt. nea

We advise you to read:

Hand it for the smartphone ...