eeprom chip needs a repair

[devde]

hi

I have an eeprom chip (6 x 8 mm) with a few legs broken, that i need it fixed.

in order to fix it, the ceramic coating has to be remove and solder new legs.

It doesn't have to be a cosmetic look, just fixed enough to extract the data on it

can someone guide me to the right direction ? an electronic engineer who can get the job done ? ...

[Amarbir[CDR-Labs]]

hi

I have an eeprom chip (6 x 8 mm) with a few legs broken, that i need it fixed.

in order to fix it, the ceramic coating has to be remove and solder new legs.

It doesn't have to be a cosmetic look, just fixed enough to extract the data on it

can someone guide me to the right direction ? an electronic engineer who can get the job done ? ...

Sir ,
What HDD Is this or its some other device

[Haltec]

Any skilled cellphone repairmen will solve that issue fast.


Can you post few pics or just eeprom model?

[digisupport]

Clean up the connections, connect wires with Loctite 3863 under a microscope.
Read eeprom and program a new one.

Digitalsupport

[devde]

Sir ,
What HDD Is this or its some other device

st9250315as

[devde]

Any skilled cellphone repairmen will solve that issue fast.


Can you post few pics or just eeprom model?

model W25X40AL09

[devde]

Clean up the connections,

how, it's broken

Last edited by devde on December 30th, 2014, 18:52, edited 1 time in total.

[devde]

It's from an hard drive ?
If so you might be lucky and not even need to fix the chip....

it appears i'm not so lucky it's a seagate F3 architecture

[digisupport]

Post some pictures.
Digitalsupport

[devde]

Post some pictures.
Digitalsupport

Attachments

[Amarbir[CDR-Labs]]

Post some pictures.
Digitalsupport

Boss ,
Useless Picture Do Something

[digisupport]

Ouch - that one is in a bad shape
Still inspect under a microscope, find the broken connections.
Fix the chip on veroboard and connect thin wires under a microscope with Loctite 3863
Read out the chip if still possible.

Digitalsupport

[mr_spokk]

Looks like the chip is dead anyway, look at the "bubbles" on top of it....looks like big internal damage.

Bosse

[Amarbir[CDR-Labs]]

Looks like the chip is dead anyway, look at the "bubbles" on top of it....looks like big internal damage.

Bosse

Wrong ,
thats the down side with solder .I suggest you put this on a adapter as 7 legs out of four will be connected you will need to connect the eight leg to the adapter via a small copper wire .Please use simple adapter and not a zif type .This case is a piece of cake for me

[dick]

Looks like the chip is dead anyway, look at the "bubbles" on top of it....looks like big internal damage.

Bosse

Wrong ,
thats the down side with solder .I suggest you put this on a adapter as 7 legs out of four will be connected you will need to connect the eight leg to the adapter via a small copper wire .Please use simple adapter and not a zif type .This case is a piece of cake for me

Thats right its a blob of solder. You think its a simple snap your fingers and job done but in my opinion the damage might be terminal. Consider how much heat might have been applied to even remove the ic as for sure it hadn't been done in any form of a controlled environment. And that is separate from the physical issues of damaged case, broken connections etc.

I would suggest to the op he appears to have some knowledge about the subject, f3 series architecture, adaptives, reading/writing roms etc. and all this considering it was his first post on Hddguru.

@op it would be helpful if you come clean and clearly describe what led you to this point (including what happened before the botched rom removal) rather than the short responses to the questions being asked. There are many people here who can help/advise and some are geographically close to your location.

[mr_spokk]

Looks like the chip is dead anyway, look at the "bubbles" on top of it....looks like big internal damage.

Bosse

Wrong ,
thats the down side with solder .

Yes, I saw that now...but pretty bad pic.

[LarrySabo]

Consider how much heat might have been applied to even remove the ic as for sure it hadn't been done in any form of a controlled environment. And that is separate from the physical issues of damaged case, broken connections etc.

Probably not enough heat was used, which is why the packaging broke. Was it pried off with a chisel or something? Hurts to just look at it (especially with that fuzzy picture).

[devde]

@mr_spokk thats the down side, with a blob of solder

[devde]

@Amarbir can you explain i don't understand

[devde]

@dick thats what i'm asking "can someone guide me to the right direction ? an electronic engineer who can get the job done ? ..."