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Cheap printed circuit boards starting with 0,0375 Euro / cm2

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#382
YES! = the plating of Ag or Sn have between 3 - 7um , that depends of a lot of factors. Also, sometimes the plating is not "sticked" perfect to all traces. This is very difficult to be controlled because the "copper structures".

The percent delared " 1%" is the content of Ag in the in the volume of solution.


AndrewT said:
Are the copper traces plated with Silver, Ag?
Click to expand...
 
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#383
The percent delared " 1%" is the content of Ag in the in the volume of solution.
Click to expand...
that means the plating is NOT silver.

It is an alloy containing a maximum silver content of 1% and the rest is made up from tin (Sn) and other constituents.

Your description "Silvering (max.1%) = FREE" is wrong.

It should refer to tinning or some other appropriate term relating to solder substantially made from tin (Sn)
 
#384
My friend,

Do you know what means " PLATING " in general ( is not ONLY by immersion)
By the way, SOLDERING is not also PLATING ?

Please don't try to " disturb" my thread with yours " scientific explaination"
I don't continue to convince you that all I declare are 100 % correct.
It is a matter only of yours understanding.
I really don't want to enter deep in details here about TINNING and SILVERING.

I really can not understand "yours attitude".
I have pleased you to continue discussion to private e-mail.
Here will never ended.

All the best,

Mihai









AndrewT said:
that means the plating is NOT silver.

It is an alloy containing a maximum silver content of 1% and the rest is made up from tin (Sn) and other constituents.

Your description "Silvering (max.1%) = FREE" is wrong.

It should refer to tinning or some other appropriate term relating to solder substantially made from tin (Sn)
Click to expand...
 
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#386
Andrew,

This thread is not about TINNING and SILVERING
I will continue discussion with you ONLY on private e-mail address.

Some things you confuse. ( are used TWO separate solutions, that's are prepared one time / plating ( with trace surface calculation in order to dose the right Sn , Ag quantity........are a lot to descriibe about this)

1. Tinning contain TIN (+ other over 20 chemicals that fix the tin to copper traces and pads)

2. Silvering contain SILVER (+ other over 20 chemicals that fix the silver to copper traces and pads)

You are talking " alloy" .....of what ?
You understood that is MELT the solid TIN and SILVER, and the boards in immersed in the hot bath of those elements.
Here is your wrong understanding.
I explain you for the last time in topic:
Are IMMERSED in solution that looks like a WATER.
I hope you understood now.

My conversation with you was too much for a day.
I have answered you here ONLY to not create a wrong OPINIONS in the mind of others.

Of course, that is your right to think what you want about : what is RIGHT and what is WRONG.

If you have "against things" about my boards you can do it in "diplomatic way" by private message or as I have proposed you to my private e-mail.

A nice weekend I wish you,

Mihai



AndrewT said:
easy solution.
Don't refer to your process as "silvering..."
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#388
Regarding SHIPPING:
- Only in Europe
- Only through National Post Mail services.
- NOT sent to P.O. Box ( only to home address)
- NOT sent to company ( firm address )
- All packages are sent as " correspondence" ( max.2Kg allowed) , max. A4 format
-All packages are sent with ARRIVAL CONFIRMATION RECEIPT ( signature of receiver at arrival, in order to take the package, than the proof document is returned to sender)
 
#389
Due the too much inquiries (paid pcb's) , any pcb will be shipped in 30-45 days, from the receiving date of money (ONLY Western Union it is agreed - in EURO)
Also the max. quantity is limited ( max 2 boards = max.100x100mm)

Thanks for yours understanding,

Mihai
 
#394
The pcb boards can be manufactured to FR4 with copper 70 um and 105 um as follow:

For 70um:
- single layer = start with 8 Euro/dm2
- double layer = start with 16 Euro/dm2


For 105um:
- single layer = start with 12 Euro/dm2
- double layer = start with 24 Euro/dm2
 
#395
GOLD plating (24K) has max. 2 um thickness, and it is applied ONLY to pad's. (traces excluded).
The price/gold plated pad it's start with 1 Euro ( depending of pad surface)
Must be marked in the file sent, the gold pad's.
 
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#400
1.PAYPAL money transfer is not agreed.

2.Only WESTERN UNION it is accepted.
The transfer fee is undertaken by sender.

3. Shipping: ONLY in Europe , exclusively by National Post mail services ( with ARRIVAL CONFIRMATION RECEIPT and tracking number- AWB)
 
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