Selective etching table
The following table shows the metal combinations for which selective etching can be performed.
-
S
Applicable(no etching for protected objects)
-
S
Applicable (no etching for protected objects)
-
A
Applicable(etching rate ratio is 10 times or more)
-
B
Applicable (others)
-
Not applicable
Metal for etching (to be removed) | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Al | Zn | Fe | Co | Ni | Sn | In | Bi | Cu | Pd | W | Mo | cITO | NiCr (Cr20%) |
SUS304 | |||
Metal for protection (to be left or protected) | Al | A | A | S | A | A | S | A | S | S | S | ||||||
Zn | A | ||||||||||||||||
Fe | S | A | S | B | S | S | S | S | S | ||||||||
Co | A | A | A | A | A.S | S | S | S | |||||||||
Ni | S | A | S | A | A | A | S | S | S | S | |||||||
Sn | A | S | S | S | S | S | |||||||||||
In | A | A | A | B | A | S | |||||||||||
Bi | A | A | S | B | S | S | S | S | |||||||||
Cu | A | A | A | A | A | B | |||||||||||
Pd | S | S | S | S | S | S | S | S | S | S | S | A | A | ||||
W | S | S | S | S | S | S | S | S | S | S | S | S | S | S | |||
Mo | S | A | A | A | A | A | A | A.S | A | A | A | ||||||
Ag | S | S | S | S | S | S | S | S | S | S | S | ||||||
Pt | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | ||
Au | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | ||
Si | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | ||
Ti | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | ||
Ta | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | ||
Nb | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | ||
clTO | S | S | S | S | S | S | S | S | S | S | S | S | S | S | |||
NiCr (Cr20%) |
S | S | S | S | S | S | S | S | S | S | S | S | |||||
SUS304 | S | S | S | S | S | S | S | S | S | S | S | S |
- Selective etching may be not avalible depending on the components of substrate. SUS304 and SUS316 and SUS430 have a similar trend.
- Without asking for details, it may be difficult to determine whether selectively etching is avalible or not. Please contact us first.
Selective etching
This is an etching technology that dissolves a specific metal when two or more different metals coexist, without affecting (or melting) the other metals.
Nickel-chromium alloy remover
MEC REMOVER CH series
From the copper and nickel-chromium co-existing substrate, nickel-chromium alloy can be selectively etched without damaging the copper surface. The CH series is useful for removing nickel-chromium film residue or etching the embedded resistance film on a 2-layer, sputter-type flexible substrate.
Etching example
![ニッケル-クロム合金除去剤 メックリムーバー CHシリーズ](img/img_ch.png)
Nickel remover
MEC REMOVER NH-1860 series
This series performs selective etching of nickel on the copper and nickel co-existing substrate without damaging the copper surface. It is useful in forming copper posts using nickel as a barrier layer or in forming patterns through reverse transfer process using nickel as a base metal.
Etching example
![ニッケル除去剤 メックリムーバー NH-1860シリーズ](img/img_nh.png)
Copper remover
MECBRITE SF series
This slightly alkaline etching agent is able to etch copper without damaging co-existing nickel or solder.
Etching example
![銅除去剤 メックブライト SF-5420](img/img_sf.png)
Aluminum remover
MEC aluminum smoothing agent AS-1250
This is an alkaline type etching solution to form a smooth aluminum surface by removing burr or scratches on aluminum surfaces. It does not damage copper surface.
Etching example
![アルミニウム除去剤 メックアルブライト AS-1250](img/img_as.png)
Dissimilar metal roughening,selective roughening
Other metal roughening
MEC NICKEL ROUGHENER
NR series(Under development)
This etching solution produces a unique surface topography having a superior anchor effect by etching a nickel surface. It is useful as a pretreatment agent for dry film lamination on the nickel surface.
Etching example
![異種金属粗化 ニッケル メックニッケルラフナー NRシリーズ(開発中)](img/img_nr.png)
Selective roughening
MECetchBOND CZ-8500
This slightly alkaline etching agent enables etching of copper film without damaging co-existing nickel or solder.
Etching example
![選択粗化 メックエッチボンド CZ-8500](img/img_cz.png)
We will suggest the product best suited to your needs.