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help in bga?? for making pcb

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5282604

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hii .........
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can i make a 2 layer pcb for bga? or it's must be multi layer

**broken link removed**
 

depends on ur software
prefer multilayer for easy and to avoid error and problems
 
and according the component pin cound and pitch
 
can i make a multi layer pcb at home ?

i will use 2 x double side pcb thicknes of pcb is .6mm to make a 1.2 mm 4layer
 
Last edited:

you can make 2 layer pcb at home but but you can't do through hole plating in small cost, but bga you need through hole plating
 
rajudp said:
you can make 2 layer pcb at home but but you can't do through hole plating in small cost, but bga you need through hole plating
Click to expand...


i know how electroplating work and i can plating any thing

watch this vedio it tell you how to make through hole plating with very low cost and at home :grin:

 

i dont think its possible. sometimes our pcb manufacturer also makes mistakes. but you say that i can do it with my hand. its a bga not a qfn or else!
 
thank you
i will try to do it
 

I have seen a few examples of 2-layer PCBs for BGA. It can work, if only a small part of BGA signal pins is utilized in the design and not too many separate supply voltages are involved. Usual BGA-PCBs are rather using 6 (and more) than 4 layers.

I effectively don't see a method to make multilayer PCBs in a DIY process.

Regarding PCB through-plating (for double sided PCB), it's not a primarly a problem of galvanic copper deposition. This is the most easy part. The problem is the preceeding chemical copper deposition, which is complex. multi-step process and also the applying an etch resist to the drilled and through plated board. I wasn't motivated to watch a 15 minute video, do you know, how to achieve these critical steps?
 
zula said:
how old are you?
Click to expand...

What do you think؟؟؟؟

---------- Post added at 00:32 ---------- Previous post was at 00:26 ----------
FvM said:
I have seen a few examples of 2-layer PCBs for BGA. It can work, if only a small part of BGA signal pins is utilized in the design and not too many separate supply voltages are involved. Usual BGA-PCBs are rather using 6 (and more) than 4 layers.

I effectively don't see a method to make multilayer PCBs in a DIY process.

Regarding PCB through-plating (for double sided PCB), it's not a primarly a problem of galvanic copper deposition. This is the most easy part. The problem is the preceeding chemical copper deposition, which is complex. multi-step process and also the applying an etch resist to the drilled and through plated board. I wasn't motivated to watch a 15 minute video, do you know, how to achieve these critical steps?
Click to expand...

thank you but i'm not good in english please what did you mean "preceeding"
 

what did you mean "preceeding
Click to expand...
a thin chemical copper (currentless) must be deposited first, then the galvanic coating can be applied.

More exactly chemical copper a two step process.
- a seed deposition, typically silver
- a "reductive" copper solution
 
FvM said:
a thin chemical copper (currentless) must be deposited first, then the galvanic coating can be applied.

More exactly chemical copper a two step process.
- a seed deposition, typically silver
- a "reductive" copper solution
Click to expand...

I did not understand anything:p
 

I only wanted to sketch the process complexity, not telling a detailed recipe.
I did not understand anything
Click to expand...
It's not easy. Actually I liked to know, if the author of the Youtube film suggests a more simple throughplating process. I doubt, he can.
 
BGA component routing is rather difficult than other SMD components. If your package is small enough then it may possible. Pin Pitch and number of picns of BGA package are important to note.
 

5282604 said:
hii .........
------------------------------------
can i make a 2 layer pcb for bga? or it's must be multi layer

**broken link removed**
Click to expand...

Yes, but it depends on the ball count & pitch. As long as you can fan out all the signal lines coming from the BGA. High speed consideration is different topic when it comes to 2 or more layer but what I'm saying is that it's possible and most manufacturer can do that.
 

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