Mehmet, I am using SPR 220-7 instead of SJR 5740 as a photoresist. I
know that SPR reflows if you hard-bake it above 100degrees Celsius.
Have you tried it without hardbake? SPR is pretty stable.

Tolga

On 7/12/05, Mehmet Unlu  wrote:
> Hi everyone,
> we are trying to replace SJR 5740 with SPR 220-3 for electroplating
> process. However we observed that SPR220 can not withstand inside the
> cyanide gold plating solution even for a hardbake temperature of 120 C
> for 12 hours.  For SJR 5740, we managed to achieve very stable features
> for a plating duration of 30 minutes. The hardbake temperature for SJR
> 5740 is 80 C for 12 hours. Do you have any experience about the
> durability of SPR 220-3? Do you have any alternatives to be used as mold
> photoresist for 30-40 minutes of gold plating?