[PCB_FORUM] Re: bga balls

Don't you mean pads are 80% of ball?
 

Patrick Westfeldt, Jr. 
720-406-0887 

 

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From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Schwartz, Jerome
Sent: Wednesday, April 26, 2006 8:15 AM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: bga balls


Balls are typically 80% of the pad.
 
 

Jerry 

-----Original Message-----
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of
sjchar3@xxxxxxxxxxxx
Sent: Wednesday, April 26, 2006 10:13 AM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] bga balls


Group: I have a data sheet that says the solderballs are .019 nominal. Is
there a rule of thumb for what pads size I should use?
TIA
Sam
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