Hello,
I have some years of experience in soldering common DIP components, and only some simple SMD components replacements.
I need to use big memories such as 29F032 (32 Mbits) flash. Its package is TSOP 40 or 48 pin. I need to make a PCB for it. I've already made 5 or 6 PCBs (drawing on copper boards, and using ferric clorhidre). So far I get good results.
But I'm afraid I won't be able to make such small and close together pads for the TSOP device. Any advide??
I use a standar JBC 14W iron, with 0.5mm tip.
I make my PCBs using permanent pens and cutting tools to make thin tracks.
Would I be able to made the pads on a PCB like this, and solder a TSOP, maybe using flux??
I want to try the toner transfer using iron. I heard of magazine paper working great. Any magazines paper?? It should be a white paper I suppose? or doesn't it matter??
I want to try the toner transfer using iron. I heard of magazine paper working great. Any magazines paper?? It should be a white paper I suppose? or doesn't it matter??
thank you
No the color of the magazine paper doesn't matter as it wont come off while ironing. All you need is a glossy paper which will leave the toner ink as soon as heat is applied.
To build that circuit, you need a PCB design software and some way to transfer the desing to a copper board, because the TSOP is tiny.
Which software can I use to create a PCB desing like this, with white background and black wires, ready to print??. I tried some but none worked for me, and Eagle seems to hard, because I can't wire the TSOP device...
If you are not able to put wires to all pins, you might have to adjust the grid settings to your TSOP package's dimensions. I just tried it with a 14 leads TSSOP, and since by default Eagle has a 0.05 grid (0.025 when Alt key is held down), I had to press down Alt to reach all the pins. I could also have changed the grid to 0.025 spacing (View -> Grid...) Hope that helps.
Yes, but if you move the TSOP device, the wires don't move. They are not attached. Is it normal?
Also, how can I export it as a white background image with black traces?? I managed to do with black background and white wires... Of course, it has to be 1:1 scale.
Great, working now.
But When I use DIP devices, the pads are just too big (and oval). Is there a way to make them circular ?? (so they are a bit smaller?)