most polyimides in Si processing are designed to have a good adhesion to
Si.  depends whether you want photosensitive or non-photosensitive one.
The three major suppliers whose products i've played with and found good
are hitachi, hoechst and ciba-giegy.

When you see the product catalagues, you'll see about a very big range and
hence its best to pick one up that suits your applications and processing
conditions best

Good luck,



>Hi;
>Does anybody know about the  ployimide which has good adhesion with Si and
>those suppliers?   In my case, adhesion is so important.   Any
>information would be welcome.
>Thanks.
>


________________________________________________________________
Shekhar Bhansali Ph.D
National Research Laboratory of Metrology
1-1-4 Umezono
Tsukuba, Ibaraki 305 JAPAN
Phone +81 298 54 4052       Fax:  +81 298 54 4135