Is there a specific type of adhesive pad for holding a PS1 modchip in place?

[GALLERY=media, 93]Image by Taijigamer2 posted Jun 30, 2015 at 8:56 AM[/GALLERY]
[GALLERY=media, 92]Image by Taijigamer2 posted Jun 30, 2015 at 8:55 AM[/GALLERY]

I just super glued mine to the top of an IC (I forget which one now). As mine is mounted on a little pcb breakout board I made, I can re-flash whenever I want without having to take the chip out.

 

why use a cuustom sop8 pcb?
I do say the wider pad layout is a plus over the sop to dip pcbs

 

I was ordering some other pcbs from oshpark so it was no bother to quickly draw up a breakout pcb. I prefer to work with SOP if I can due to smaller footprints and naturally insulated on the bottom side. I sometimes use DIP in my designs if it's more beneficial ie minimising the need for too many vias.

As u can see the pads are nice and big to solder to without increasing the footprint too much. I actually glued it down before soldering the wires to it so it was nice and steady for soldering. I did program it away from the mobo but I could have done that on board as well.

I avoid hot glue too. While it can be used well, as has been demonstrated already, it is usually used badly. With 25-30AWG wires, I find kapton tape adequate for fixation. But as we all know, there are many ways to skin a cat.

 

Yeah I've switched to mostly surface mount for things like this now, it's a lot more professional looking to use a breakout IMO.

Thought about redesigning yours to add in a bypass cap?

 

I did think about that after the mod. I'm not trained in electronics so I'm learning as I go. As a result I'm always finding ways to improve my designs as I learn more. I think I read that this chip with this code doesn't require it as the code is simple pulses of SCEx strings. I did use a bypass cap when programming the chip but it was a simple ceramic soldered on and then removed.

I have included a bypass cap in my Sega Genesis switch less mod board which will go in my Sega Neptune mod.

 

That looks really nice as well! I may be misinformed but doesn't superglue corrode wires and such? I imagine it would be fine between an insulated board and the top of a chip though.

 

Thanks.

I'm sure it does but this was a tiny drop between underside of pcb and IC so no worry of corroded traces/wires. It's all about choosing the right tool for the right job. It worked for me but I would never use super glue near any pads or wires. I'm sure there is a horror story out there somewhere.