What's the exact meaning of Black Oxide in the inner layers of PCB?

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soppcb

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In the internet, I have checked Black Oxide means a coating,
anyone know what's the exact meaning of Black Oxide?

Jack
soppcbtech at gmail dot com
 

Jack, I thought you said you had a PCB plant or are involved in the business?
 

Try Wikipedia

In Printed circuit board[8] use the black oxide provides better adhesion for the fiberglass laminate
layers. The PCB is dipped in a bath containing
Hydroxide, Hypochlorite, and Cuprate which becomes depleted in all three components. This
indicates that the Black Copper Oxide comes
partially from the Cuprate and partially from the PCB
Copper circuitry. Under microscopic examination,
there is no Copper(I) Oxide layer. An applicable U.S. military specification is MIL- F-495E.[9]

Keith
 

Hi, Mattylad, yes, we have a PCB plant, I showed my question here to know exactly the meanings from your oveasea guys, you know, there will be some different between chinese and english.

Jack
soppcbtech at gmail dot com
Mattylad said:
Jack, I thought you said you had a PCB plant or are involved in the business?
Click to expand...


---------- Post added at 09:40 ---------- Previous post was at 09:38 ----------

Tks, Keith,

Jack
soppcb
 

Oh.

Its just that with every one of your posts having your email address in it looks like spam.
 

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