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Electronics => Beginners => Topic started by: loris on May 26, 2020, 01:44:55 pm

Title: What laser specification i need to use to etch a thin layer of copper
Post by: loris on May 26, 2020, 01:44:55 pm
Hello , i am a french student mechanical engineer and i am working to engraving a thin layer of Copper or Gold or Tin (about 5-10um thick) on polymere with a beam spot size of about 50um. My reaserch oriented me to use a 532nm Q-switch YAG laser due to the fact that these materials absorbed very well this wavelenght emitted by the laser. I have found some suppliers for this kind of laser, but they proposed a lot of choice of laser with many technicals specifications.  I know that the higher energy per pulse, the greater the depht engraved and the lower the repetition rate, the slower the process speed. But how can I chose between all thess parameters, wich one is the best for my apllication (I need a speed process of about 2000mm/min). I saw these lasers from teem photonics :https://www.teemphotonics.com/laser/532-nm-laser-500hz-350ps/ (https://www.teemphotonics.com/laser/532-nm-laser-500hz-350ps/)

Thanks in advance for your answers, and sorry for my english.
Title: Re: What spefification laser i need to use to etch a thin layer of copper
Post by: ebclr on May 26, 2020, 03:21:49 pm
This machine  uses the kind of lazer your professor sugests

https://www.aliexpress.com/item/4000335225866.html?src=google&src=google&albch=shopping&acnt=494-037-6276&isdl=y&slnk=&plac=&mtctp=&albbt=Gploogle_7_shopping&aff_atform=google&aff_short_key=UneMJZVf&&albagn=888888&albcp=7303158455&albag=86143156931&trgt=883147839739&crea=pt4000335225866&netw=u&device=c&albpg=883147839739&albpd=pt4000335225866&gclid=CjwKCAjw_LL2BRAkEiwAv2Y3SXLAcOsHeccn_lBw_eL_LjXUYLHx24sPKMS_UQDtAj37Uifv4omlvBoCYE8QAvD_BwE&gclsrc=aw.ds (https://www.aliexpress.com/item/4000335225866.html?src=google&src=google&albch=shopping&acnt=494-037-6276&isdl=y&slnk=&plac=&mtctp=&albbt=Gploogle_7_shopping&aff_atform=google&aff_short_key=UneMJZVf&&albagn=888888&albcp=7303158455&albag=86143156931&trgt=883147839739&crea=pt4000335225866&netw=u&device=c&albpg=883147839739&albpd=pt4000335225866&gclid=CjwKCAjw_LL2BRAkEiwAv2Y3SXLAcOsHeccn_lBw_eL_LjXUYLHx24sPKMS_UQDtAj37Uifv4omlvBoCYE8QAvD_BwE&gclsrc=aw.ds)
Title: Re: What spefification laser i need to use to etch a thin layer of copper
Post by: loris on May 27, 2020, 06:44:17 am
I need a head laser wich could be mounted on a machine, so I need something much more professional, like the head laser on the link I post before. The Laser you suggest me is deliver with no technical specifications on a cheap website... Moreover I need a head laser to engrave copper or gold or tin and not to remove a tattoo.