BGA with glue under it - GSM-Forum

genocite · 11-27-2001, 18:24

anybody know how to open a bga with glue under it, but without destroying the bga or the pcb ? thanks before

Skyfox · 12-01-2001, 10:35

Warning - this is danger, but... if you still waiting for solution. Carefuly hot it with hot air. And push chip with tweezers up. The glue is melted then you hot it. Clean chip and pcb.

Freestyler2000 · 12-02-2001, 00:49

Hi Skyfox. I doubt it. The resin which is used to underfill Cobba on 3210, Ccont and RAM+Flash on 8210, also MAD2 on all models cannot be melted. I personaly managed to destroy one MAD2 (just for experiment) and did remove one Cobba, but with the PCB totaly damaged. Best regards Daniel

genocite · 12-02-2001, 03:24

yes, freestyler is right, i've already messed up some pcb and bga too, the glue can't be melted, even i've already heated it for a long time. i think that the solution is that we must find some liquid or compound which could melted the glue first, some friends of mine suggest me to use amoniak, anybody ever heard about it ?

Hanukkah · 12-03-2001, 14:39

The underfill "glue" , I think is called emicon. I've tried with scrap boards and was successful somehow. First, soak the board in lacquer thinner to soften the emicon then heat with large amounts of air. Not sure if it won't kill a useable board, but was successful in a scrap one. Hope this helps. Anybody with further info can chip in.

nokya · 12-07-2001, 00:18

Hi Guys.....maybe we r all being fooled....try freezing the board & then try breaking the glue off!!It seems to bond BETTER with more heat...hahaha...JUST AN IDEA!!Obviously i would suggest wrapping board in plastic or something....u never know,hey?

mobidoc · 12-07-2001, 09:59

hello m8

use laser rework station .

tested .

kind regards .

Skyfox · 12-07-2001, 21:08

There i can see how its look like? I newer hear before about laser rework station and i want to see it. Please email me photo of it or give url.

Trebor · 12-12-2001, 00:23

No way for clearing of glue under BGA, because it is epoxide glue.Sorry,One way exist.LASER cutter_but WHO HAVE ?????

11-27-2001, 18:24	#1 (permalink)
genocite No Life Poster Join Date: Jul 2001 Location: md Age: 25 Posts: 761 Member: 5379 Status: Offline Thanks Meter: 0	BGA with glue under it anybody know how to open a bga with glue under it, but without destroying the bga or the pcb ? thanks before

12-02-2001, 00:49	#3 (permalink)
Freestyler2000 No Life Poster Join Date: Dec 2000 Location: UK Posts: 724 Member: 2868 Status: Offline Thanks Meter: 514	Hi Skyfox.<br />I doubt it. The resin which is used to underfill Cobba on 3210, Ccont and RAM+Flash on 8210, also MAD2 on all models cannot be melted. I personaly managed to destroy one MAD2 (just for experiment) and did remove one Cobba, but with the PCB totaly damaged.<br />Best regards<br />Daniel

12-02-2001, 03:24	#4 (permalink)
genocite No Life Poster Join Date: Jul 2001 Location: md Age: 25 Posts: 761 Member: 5379 Status: Offline Thanks Meter: 0	yes, freestyler is right, i've already messed up some pcb and bga too, the glue can't be melted, even i've already heated it for a long time.<br />i think that the solution is that we must find some liquid or compound which could melted the glue first, some friends of mine suggest me to use amoniak, anybody ever heard about it ?

12-12-2001, 00:23	#9 (permalink)
Trebor Freak Poster Join Date: Jul 2001 Location: Czech rep. Posts: 168 Member: 5466 Status: Offline Thanks Meter: 0	No way for clearing of glue under BGA, because it<br />is epoxide glue.Sorry,One way exist.LASER cutter_but WHO HAVE ?????

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
i need bga ic glue remover	hans salim	BB5BOX	11	01-29-2008 08:06
For All Tunisien : Bga ic glue remover and Smart clip Tp cable in Stock	The_Gorr	Main Sales Section	0	10-19-2007 10:31
How to remove glue under Ccont in 8210?	Trier	Nokia Hardware & Hardware Repair	12	11-02-2002 01:20
8210 glue under ccont bga ic	digipulse	Nokia Legacy Phones ( DCT-1 ,2 ,3 ,L )	1	03-02-2002 21:21

12-01-2001, 10:35	#2 (permalink)
Skyfox Insane Poster Join Date: Aug 2000 Location: Russia Age: 48 Posts: 96 Member: 1881 Status: Offline Thanks Meter: 1	Warning - this is danger, but... if you still waiting for solution. Carefuly hot it with hot air. And push chip with tweezers up. The glue is melted then you hot it. Clean chip and pcb.

12-03-2001, 14:39	#5 (permalink)
Hanukkah No Life Poster Join Date: Jul 2001 Location: RP Age: 48 Posts: 890 Member: 5246 Status: Offline Thanks Meter: 9	The underfill "glue" , I think is called emicon. I've tried with scrap boards and was successful somehow. First, soak the board in lacquer thinner to soften the emicon then heat with large amounts of air. Not sure if it won't kill a useable board, but was successful in a scrap one. Hope this helps. Anybody with further info can chip in.

12-07-2001, 00:18	#6 (permalink)
nokya Freak Poster Join Date: Jul 2001 Posts: 174 Member: 5364 Status: Offline Thanks Meter: 0	Hi Guys.....maybe we r all being fooled....try freezing the board & then try breaking the glue off!!It seems to bond BETTER with more heat...hahaha...JUST AN IDEA!!Obviously i would suggest wrapping board in plastic or something....u never know,hey?

12-07-2001, 09:59	#7 (permalink)
mobidoc Freak Poster Join Date: Nov 2001 Age: 45 Posts: 410 Member: 7327 Status: Offline Thanks Meter: 12	hello m8 use laser rework station . tested . kind regards .

12-07-2001, 21:08	#8 (permalink)
Skyfox Insane Poster Join Date: Aug 2000 Location: Russia Age: 48 Posts: 96 Member: 1881 Status: Offline Thanks Meter: 1	There i can see how its look like? I newer hear before about laser rework station and i want to see it. Please email me photo of it or give url.