The 80umx80um PAD size for COB package

Status
Not open for further replies.
C

chang830

Full Member level 5
Joined
Feb 11, 2006
Messages
267
Helped
14
Reputation
28
Reaction score
3
Trophy points
1,298
Activity points
3,424
hi,
My project used 0.5um CMOS process and the design rule gives 90umx90um PAD size recommendations. For area considerations, my pad is decreased to 80Umx80um and the chip will be COB(Chip on board) packaged.

Would any one pls. give me advcie if it have any risks?

Thanks
 

Dear Chang:

In choosing PAD sizes, one needs to discuss with package company to discuss about the PAD size and the PAD pitch. There are different limitations for different packages.

In my experiment, 80*80 is OK for COP.
 

    C

    chang830

    Points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…