Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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CHEMICAL ETCHING FOR STAINLESS STEEL
2002
Dear sir:
We would like to etch copper at present we are using ferric chloride ⇦this on eBay or Amazon [affil links] in conveyorized etching machine under heat & spray pressure we would like to reduce etching time can we go for electro chemical immersion reverse voltage method.
We tried with carbon cathode, 30% ferric chloride ⇦this on eBay or Amazon [affil links] solution,operating voltage 2Volts,though it etches copper the edges are not uniform.
Kindly suggest electro chemical immersion reverse voltage method with details like
1.what is the anode?
2.what is the percentage of ferric chloride
⇦this on
eBay or
Amazon [affil links] ?
3.what is the operating voltage?
4. how many microns will it remove at these condition?
With high regards,
Ramesh.R- HOSUR, TAMIL NADU, INDIA
dear sir,
we want to etch austenitic stainless steel
please indicate the etchants?
where can we get the electro etching equipment?
thank you.
scientist,AFFF,BARC,Tarapur - Mumbai, Maharashtra,inida
2007
June 17, 2008
Dear Sir:
I am stuck with the processing of GaAS.
I have wafer of GaAs and onto the top it Stainless Steel is coated.
How could I etch the stainless steel coating?
Would you please suggest me?
With best regards,
Zahid Mahmood
Associate Professor
Applied Physics, Electronics and Communication Engineering
University of Dhaka
Process scientist - Bangladesh
Sir ,
What is the diff between cp grade ferric chloride
⇦this on
eBay or
Amazon [affil links] and lab grade ferric chloride
⇦this on
eBay or
Amazon [affil links] , does lab grade will etch fast when compared to cp grade.
galvonics - Bangalore, Karanataka, India
August 22, 2008
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