BLOGas.lt
Sukurk savo BLOGą Kitas atsitiktinis BLOGas

Įraše apie ultravioletą sukritikavau savo lipdinį. Paeksperimentavus su švitinimo laiku, nuotoliu tarp plokštės ir diodų bei pačiais chemikalais, gaunasi visai neblogi rezultatai.

Deja tolygios gaunasi tik nedidelio ploto plokštės. Kryptiškai šviečiantys diodai vienodai visos plokštės neapšvitina - vidurys kepa daugiau nei turėtų, o pakraščiai, pakankamai negavę UV spindulių, lieka per daug pasidengę variu. Štai pavyzdys kaip tai atrodo:

Atrodytų brokas menkas, bet visgi jis yra…

PCB kokybei įtakos turi ir tirpalas, kuriame jos ėsdinamos. Visada naudodavau geležies chloridą (FeCl3) tačiau pasiskaitęs teigiamų atsiliepimų apie natrio persulfatą nutariau išbandyti ir šį chemikalą. Daugiau apie šių chemikalų pliusus ir minusus, netgi su reakcijų lygtimis, galite pasiskaityti čia. Natrio persulfate mirkytos plokštės gaunasi dailesnės, nei laikytos geležies chloride. FeCl3 palenda po takeliais ir iškandžioja jų kraštus, be to tai yra toks tepantis tirpalas, kad po plokštės ėsdinimo dar pora dienų tenka vaikščioti su pageltusiais pirštų galais :)

Štai taip atrodo  FeCl3 mirkoma plokštė:

….tiek….

Patiko (0)

Rodyk draugams

Komentarai įrašui “Darbo rezultatai (PCB)”
  1. Congratulations on possessing actually one in every of one of the vital refined blogs Ive arrive across in a while! Its simply amazing how much you’ll be capable to think about away from a thing mainly simply due to how visually stunning it is. Youve place collectively an awesome weblog web site house –nice graphics, films, layout. That is actually a must-see web site!

  2. It feels good to find such an interesting topic on the internet like this one nowadays.

  3. Accuracy is very important electronic products
    http://www.watchesn.com

  4. We watched a movie related to this kind of theme in years past. Today i just unexpectedly discovered your own post, and it completely help remind all of us ever again. Is there an idea exactly how had been it called? With Robert de Niro i’m assuming. I most certainly will try and google this at this time, however , anyways, awesome blog post, i like that point of view of you actually. I most certainly will book mark your webblog, and maybe investigate it again far later, must go to work now.

  5. Meanwhile, thousands of illegal aliens cross the southern US border with drugs, trash, wanting free healthcare, and G-d knows what elce.

  6. id really like to see him get a second shot.

  7. Hi. I just want to say that it was a nice reading. I hope you come out with more interesting posts, because I bookmarked your website. All the best.

  8. There are definitely loads of details like that to take into consideration. That is a great point to bring up. I offer the ideas above as basic inspiration however clearly there are questions like the one you carry up where a very powerful thing will probably be working in trustworthy good faith. I don?t know if greatest practices have emerged round things like that, but I am certain that your job is clearly identified as a fair game. Both girls and boys feel the impression of just a moment’s pleasure, for the rest of their lives.

  9. Ha ha… I was just online around and took a glimpse at these reviews. I can’t believe there’s still this much attention. Thanks for posting about this.

  10. Could you message me with some pointers on how you made your blog look this cool , I would be appreciative.

  11. It’s unusual to come across an authority throughout which team you would’ve some people have faith. Worldwide in the present period, none of us ultimately likes you demonstrating most people the result inside this subjecttopic. Strategies about how fortuitous I’m sure to own completely commonly found an incredibly amazing internet site simply because this. It’s individuals like you exactly who produce correct impact in this world through the entire solutions these folks explore.

  12. If this game is anything like SB 43 or the GB/PIT game from last year, we’ll have another classic to watch.

  13. PDASmart is a bossman in Apple iPhone repair. If you got your iPhone fog, dont panic. Were authoritatively practised in adulterate working order, and can performed any congenial of damaged repair. Weve been round crave tolerably to fool seen it all. Well beget with you to lessen you know what we can establish, and if it is economical to do so. From backlight renew to LCD renew, our technicians can get it done. We can uncover you a boob tube rivet, an LCD put, or any other parts repair. Our milieu includes a unencumbered diagnostic evaluation to keep from decide what parts are needed and the estimated expense, and if you stock-still organize questions, amuse fondle open-handed to ask.

Komentuokite