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Missing BGA Balls

Views: 1315

CKH

#42634

Missing BGA Balls | 10 July, 2006

Hi Folk,

if i have already mounted a BGA ICs with Missing BGA Balls onto the board, what will the Missing BGA Balls look like in X-Ray (2D & 3D).... A Big Void or will it look the same as other BGA Balls?

Appreciate your advice.

Thks & Rdgs CKH

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SWAG

#42635

Missing BGA Balls | 10 July, 2006

Should look like a void (light spot in the ball pattern). Might even not show much detail like a void does, could look more like the perimeter of the chip in the x-ray or the detail you see between balls in the x-ray. Depends on how good the shot is. You just won't see the dark spot that is a ball.

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RDR

#42642

Missing BGA Balls | 10 July, 2006

it will lok like an empty pad, very light in color, it will be very obvious in Xray

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CKH

#42857

Missing BGA Balls | 21 July, 2006

Thks for the advice....

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CKH

#42858

Missing BGA Balls | 21 July, 2006

Thank you for your advice...

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