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devde
 Post subject: eeprom chip needs a repair
PostPosted: December 30th, 2014, 12:41 
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Joined: December 29th, 2014, 4:14
Posts: 19
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 ? ...
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Amarbir[CDR-Labs]
 Post subject: Re: eeprom chip needs a repair
PostPosted: December 30th, 2014, 14:26 
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Joined: August 15th, 2006, 3:01
Posts: 3522
Location: CDRLabs @ Chandigarh [ India ]
devde wrote:
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

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Haltec
 Post subject: Re: eeprom chip needs a repair
PostPosted: December 30th, 2014, 15:27 
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Joined: June 25th, 2013, 6:32
Posts: 37
Location: Blank
Any skilled cellphone repairmen will solve that issue fast.


Can you post few pics or just eeprom model?
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digisupport
 Post subject: Re: eeprom chip needs a repair
PostPosted: December 30th, 2014, 16:41 
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Joined: March 6th, 2010, 3:46
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Location: Kolding | Denmark
Clean up the connections, connect wires with Loctite 3863 under a microscope.
Read eeprom and program a new one.

Digitalsupport

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devde
 Post subject: Re: eeprom chip needs a repair
PostPosted: December 30th, 2014, 18:45 
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Joined: December 29th, 2014, 4:14
Posts: 19
Amarbir wrote:

Sir ,
What HDD Is this or its some other device


st9250315as
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devde
 Post subject: Re: eeprom chip needs a repair
PostPosted: December 30th, 2014, 18:46 
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Joined: December 29th, 2014, 4:14
Posts: 19
Haltec wrote:
Any skilled cellphone repairmen will solve that issue fast.


Can you post few pics or just eeprom model?


model W25X40AL09
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devde
 Post subject: Re: eeprom chip needs a repair
PostPosted: December 30th, 2014, 18:49 
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Joined: December 29th, 2014, 4:14
Posts: 19
digisupport wrote:
Clean up the connections,


how, it's broken


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

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devde
 Post subject: Re: eeprom chip needs a repair
PostPosted: December 30th, 2014, 18:50 
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Joined: December 29th, 2014, 4:14
Posts: 19
Spildit wrote:
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
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digisupport
 Post subject: Re: eeprom chip needs a repair
PostPosted: December 30th, 2014, 20:37 
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Joined: March 6th, 2010, 3:46
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Location: Kolding | Denmark
Post some pictures.
Digitalsupport

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devde
 Post subject: Re: eeprom chip needs a repair
PostPosted: December 30th, 2014, 21:02 
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Joined: December 29th, 2014, 4:14
Posts: 19
digisupport wrote:
Post some pictures.
Digitalsupport


Attachments:
IMG_20141231_005640.jpg
IMG_20141231_005640.jpg [ 1.39 MiB | Viewed 13242 times ]
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Amarbir[CDR-Labs]
 Post subject: Re: eeprom chip needs a repair
PostPosted: December 31st, 2014, 5:42 
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Location: CDRLabs @ Chandigarh [ India ]
devde wrote:
digisupport wrote:
Post some pictures.
Digitalsupport


Boss ,
Useless Picture Do Something :(

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digisupport
 Post subject: Re: eeprom chip needs a repair
PostPosted: December 31st, 2014, 5:48 
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Joined: March 6th, 2010, 3:46
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Location: Kolding | Denmark
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

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mr_spokk
 Post subject: Re: eeprom chip needs a repair
PostPosted: December 31st, 2014, 5:50 
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Joined: May 21st, 2007, 16:10
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Location: Gothenburg/ Sweden
Looks like the chip is dead anyway, look at the "bubbles" on top of it....looks like big internal damage.

Bosse

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Amarbir[CDR-Labs]
 Post subject: Re: eeprom chip needs a repair
PostPosted: December 31st, 2014, 6:02 
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Location: CDRLabs @ Chandigarh [ India ]
mr_spokk wrote:
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 :mrgreen:

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dick
 Post subject: Re: eeprom chip needs a repair
PostPosted: December 31st, 2014, 6:32 
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Joined: January 8th, 2008, 5:21
Posts: 927
Location: uk
Amarbir wrote:
mr_spokk wrote:
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 :mrgreen:
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.
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mr_spokk
 Post subject: Re: eeprom chip needs a repair
PostPosted: December 31st, 2014, 7:02 
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Joined: May 21st, 2007, 16:10
Posts: 1592
Location: Gothenburg/ Sweden
Amarbir wrote:
mr_spokk wrote:
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. :D

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LarrySabo
 Post subject: Re: eeprom chip needs a repair
PostPosted: December 31st, 2014, 9:39 
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Joined: December 8th, 2010, 11:37
Posts: 738
Location: Ottawa, Canada
dick wrote:
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).

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devde
 Post subject: Re: eeprom chip needs a repair
PostPosted: December 31st, 2014, 10:54 
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Joined: December 29th, 2014, 4:14
Posts: 19
@mr_spokk thats the down side, with a blob of solder
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devde
 Post subject: Re: eeprom chip needs a repair
PostPosted: December 31st, 2014, 10:55 
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Joined: December 29th, 2014, 4:14
Posts: 19
@Amarbir can you explain i don't understand
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devde
 Post subject: Re: eeprom chip needs a repair
PostPosted: December 31st, 2014, 10:55 
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Joined: December 29th, 2014, 4:14
Posts: 19
@dick thats what i'm asking "can someone guide me to the right direction ? an electronic engineer who can get the job done ? ..."
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