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 Post subject: BGA Classification
PostPosted: Thu Dec 06, 2018 4:19 pm 

Joined: Mon Oct 29, 2018 7:55 pm
Posts: 6
I am certain that this has been discussed before, but I found it is not as easy to classify them. Can you tell me how to classify these 5 chips?
#4 has a metal rim, it appears it is copper when scratched with a file.
#5 has a metal cover, it looks like copper when when scratched with a file.


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 Post subject: Re: BGA Classification
PostPosted: Thu Dec 06, 2018 4:42 pm 

Joined: Tue Feb 03, 2015 6:57 pm
Posts: 4787
Location: Low DOS
1, 2, and 3 are definitely green brown fibre no metal
4 I’m fairly certain is also green brown fibre no metal
5. If the chip is fibre than it’s pinless. If it’s ceramic I’m not entirely sure.

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 Post subject: Re: BGA Classification
PostPosted: Thu Dec 06, 2018 4:56 pm 

Joined: Mon Oct 29, 2018 7:55 pm
Posts: 6
#5 is metal cover I scratched with a file, and it has copper color. Same with # 4 the rim is metal, again when I scratched with a file it shows copper tone metal.


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 Post subject: Re: BGA Classification
PostPosted: Thu Dec 06, 2018 5:10 pm 

Joined: Tue Feb 03, 2015 6:57 pm
Posts: 4787
Location: Low DOS
4 has a metal rim. Hence my placement. I don’t believe there’s a markdown on this one to with metal

5 with the complete cover, I’m not sure if this would go as pinless or as with metal. I lean to the latter as it’s more valuable a chip than what normally falls into pinless but I’m not completely sure so I don’t want to say the wrong thing. Wait a bit to see if someone else has experience; I’ve never sent on of those in.

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