Hi all.
I am in search of a liquid with for following application:
I have a PC board covered with 100micron Cu layer. I want a liquid to map/draw/print and circit on the Cu. It have to adhere to the Cu. There after I want to use FeCl3 to dissolve the copper not covered by the "liquid". Then I...
Hi all.
I am in search of a liquid with for following application:
I have a PC board covered with 100micron Cu layer. I want a liquid to map/draw/print and circit on the Cu. It have to adhere to the Cu. There after I want to use FeCl3 to dissolve the copper not covered by the "liquid". Then I...
We use "modified" compressors to pump our process gasses through the plant. We have about 22 compressors that makes quite a lot of noise. ~ 130dB for one, then you add about 6dB for every compressor, thus in total more or less 256dB.
We definitely need to provide ear protection for our...
I am busy designing a venturi pump. the venturi works with air. The objective is to create a lowered pressure in the throught of the venturi to have some "suction" on another pipe that ends in the throught. The pipe contains a gas mixture of N2, H2 and SiH4 (108m3/hr) at about 86.5kPa (1atm)...
I am, once again, thrown into the deep end!
I am in charge of training and safety of a new plant. I have to train the operators and other personnel concerned with safety. What I have is operational procedures for all the units on the plant as well as a simulator to simulate conditions and...
Hi 2 all, I have to design a wet scrubber for an effluent gas stream containing a very fine dust. This stream is abtained by burning SiH4 with O2 (it is a spontaneous combustion) to form SiO2 and H2O. The plan is do design a scrubber to remove the SiO2. I just started my career as chem eng and...
