bga ball size

[janusambrose]

What is the size of the bga balls that are used for the icam & tsop? Is it 0.4mm or 0.5mm or 0.55mm or 0.6mm or 0.76mm? TIA.

[ra8844]

Hi,

I have a 722 VIP subscribed that I would like to add st19xl mod to it. Im interested in TSOP ball size and package size/body size bc I would like to be able to interchange the TSOP in my receiver by using an interposer and socket.

Has anyone set this up bf and can recommend a site to buy interposer and socket for TSOP?

Thanks.

[hitec]

I believe the 722 may use a different chip, but the 211 and 622 uses a BGA64 setup, with 1 mm ball spacing. You can get away with 0.5mm or 0.6mm solder balls.

I have never seen a BGA64 socket that installs over BGA pads, so I doubt you can find a solution that allows you to swap your BGA chip without rework.

Changing your BGA is not for the faint of heart. You need the following:

1) Hot air station
2) Reworking 'stuff' - flux, wick, cleaner, solder balls, ball mask
3) Flash memory programmer, with BGA64 adapter
4) Appropriate Flash chip
5) Lots of practice!

The last is free, #4 might be difficult to find, and #1 and #2 could cost you a few bucks. Unless you want the experience of doing it, better to send it out....

[hitec]

I stand corrected. I guess they DO make these things....

hxxp://www.advintcorp.com/fliptopsockets.html

[janusambrose]

I believe the 722 may use a different chip, but the 211 and 622 uses a BGA64 setup, with 1 mm ball spacing. You can get away with 0.5mm or 0.6mm solder balls.

I have never seen a BGA64 socket that installs over BGA pads, so I doubt you can find a solution that allows you to swap your BGA chip without rework.

Changing your BGA is not for the faint of heart. You need the following:

1) Hot air station
2) Reworking 'stuff' - flux, wick, cleaner, solder balls, ball mask
3) Flash memory programmer, with BGA64 adapter
4) Appropriate Flash chip
5) Lots of practice!

The last is free, #4 might be difficult to find, and #1 and #2 could cost you a few bucks. Unless you want the experience of doing it, better to send it out....


hitec,
does a 811/311 bga use the 0.5mm or 0.6mm solder balls? would like to take the tsop of an 311 with known subbed info and transfer it over to an 811. thanks.

[lefty]

I have never seen a BGA64 socket that installs over BGA pads, so I doubt you can find a solution that allows you to swap your BGA chip without rework.


Yes, they do make such an animal.....

And they ain't cheap.......

Even to get them you have to buy them in bulk to get the price of $25 per section.

I was damned lucky to get these as a sample from Millworks. They ended the free samples program.

[ra8844]

Thanks for the info everyone. I guess now I just need to verify the TSOP hasnt changed b/w the 622 and 722 then Im good to go for my st19xl mod...

Can anyone confirm whether the 722 BGA is similar or differnt to the 622 one and what size the 722 BGA is if different?

Thanks again!

[sdeens]

same identical: .5mm balls, 1.00 mm pitch, 8x8 array EBGA64 chip
the only differenmce is they got rid of the slave BGA at U21, so the VIP722 onlyhas one chip at U20 and its double the size 256mb of the VIP622 (128mb)

[ruciz]

can you cardslot?? might be easier than reballing and reworking...

even solder some 30awg onto the 4 points on the chip, expoy upside down and wire to the slot/board BGA points?