Thank you very much Sir. It was very handy. I am in the secondary year in PhD in petroleum geology, and I want to use Sem to see samples of Silurian Shale to describe the network pores in the organic matter. I know that I should use gold sputtering technic, but what is the first step to prepare the samples, Is in to embeded in resin or what!!? Thank you very much.
I have succefully sputtered copper in glass, however, when I try to plate copper (galvanic acid copper bath) , the deposit come off the glass. What possible is hapening? thanks for any help and great video.
7 лет назад
+fercarcas not follow you there? You trying to deposit more cu by electrochem on same sputtered glass piece or what?
that's it. First I make sputtering using copper target and next copper electroplating bath. After some minutes, the film detaches (come off). Not know what can be hapening,
7 лет назад
+fercarcas I also experienced poor adhesion on glass from sputtering. Have you checked after sputter if copper is well attached? I havent looked so much into it, I dont usually work with glass substrares, rumors say you shall sputter some thin layer of Ni before real metall, havent tried thou.
hello, thanks for posting. We are developing a sputtering machine based on an evaporator one. Some papers tell that better sputter pressure is below 1Pa, however your video employs 0,1mbar (10Pa). What do you think about that?
8 лет назад
fercarcas you are probabley right, our sputter is old like shit. I have seen texts that state sputtered gold tend to aglomerate into rough surface when taken out in to air, and that some protect the gold by an in turn evaporate a carbon layer, done in the same machine before removal.
Hello! I have an existential question: the machines to make gold sputtering in samples that are going to be observed in the SEM also do the evaporation of carbon that serves to make replicas to observe in the TEM, why do not use the evaporation of carbon for samples of SEM?
5 лет назад+1
yes, fully possible, but there is things to considerer. SEM due higher currents and mostly bulkier samples tend to have more charging problems compared to TEM work. A good metal coating is therefore prefered most of times (more conducting). But there are exceptions, if EDS, elemental analysis are being performed, metals tend to absorb xrays more and hampering performance, carbon is good in that perspective. Modern work rutine is nowadays either thin iridium coating and sometimes chromium for EDS needs. carbon are things u usually want to avoid in low acc voltage work, i.e
Thank you very much Sir. It was very handy.
I am in the secondary year in PhD in petroleum geology, and I want to use Sem to see samples of Silurian Shale to describe the network pores in the organic matter. I know that I should use gold sputtering technic, but what is the first step to prepare the samples, Is in to embeded in resin or what!!? Thank you very much.
I have succefully sputtered copper in glass, however, when I try to plate copper (galvanic acid copper bath) , the deposit come off the glass. What possible is hapening? thanks for any help and great video.
+fercarcas not follow you there? You trying to deposit more cu by electrochem on same sputtered glass piece or what?
that's it. First I make sputtering using copper target and next copper electroplating bath. After some minutes, the film detaches (come off). Not know what can be hapening,
+fercarcas I also experienced poor adhesion on glass from sputtering. Have you checked after sputter if copper is well attached? I havent looked so much into it, I dont usually work with glass substrares, rumors say you shall sputter some thin layer of Ni before real metall, havent tried thou.
hello, thanks for posting. We are developing a sputtering machine based on an evaporator one. Some papers tell that better sputter pressure is below 1Pa, however your video employs 0,1mbar (10Pa). What do you think about that?
fercarcas you are probabley right, our sputter is old like shit. I have seen texts that state sputtered gold tend to aglomerate into rough surface when taken out in to air, and that some protect the gold by an in turn evaporate a carbon layer, done in the same machine before removal.
Hello! I have an existential question: the machines to make gold sputtering in samples that are going to be observed in the SEM also do the evaporation of carbon that serves to make replicas to observe in the TEM, why do not use the evaporation of carbon for samples of SEM?
yes, fully possible, but there is things to considerer. SEM due higher currents and mostly bulkier samples tend to have more charging problems compared to TEM work. A good metal coating is therefore prefered most of times (more conducting). But there are exceptions, if EDS, elemental analysis are being performed, metals tend to absorb xrays more and hampering performance, carbon is good in that perspective. Modern work rutine is nowadays either thin iridium coating and sometimes chromium for EDS needs. carbon are things u usually want to avoid in low acc voltage work, i.e
@ Thanks!!