Homebrew PCBs

http://img713.imageshack.us/img713/8166/mpuw.jpg

Hi , i want to make my pcb's for small mem's sensors.

Which method is more precise for these dimensions. Photoresist PCB's (
Bungard ) and printing masters with laser printer ( i dont have any but
if i choose this method i'll buy 1200x1200 dpi one ) and the other
alternative direct printing with inkjets. for example Epson's some
printers (r2880) don't need to mod to print direct to pcb's.

I have no problem doing 0.5mm pitch ICs with UV films and an Epson R280
(2880 dpi) inkjet printer, although I use the jetstar films and custom
printing software for the densest artwork.

0.5mm is 20 mil (12px for 600 dpi), and the pads are 13mil with 7mil
gap.  You might be able to do get away with 8/4 pixels (8 pixel lines, 4
pixel spaces) on a 600 dpi laser printer, if you've practiced enough :)

The DPI of the laser printer isn't as important as how accurately it can
place the toner without the toner being "fuzzy" around the edges.  Most
of the time, the copper edges aren't straight - they're "lumpy" as the
toner is sort of "thrown" at the paper and doesn't always land exactly
where you expect it.  The "lumpyness" depends on your technique,
printer, paper, etc.

For reference, though, here's 6/6 done with toner:
    http://www.delorie.com/pcb/lab/66-0.jpg
Compared to 6/6 done with UV film:
    http://www.delorie.com/pcb/lab/6mil-front.jpg

Here's a sample 0.5mm pitch part done with UV films:
    http://www.delorie.com/pcb/lab/6mil-0.5mm.jpg

Your links don't work as your site says don't hot link when you click on them!

Malcolm


 
I don't suffer from insanity I enjoy it!
Mene, mene, tekel, upharsin
The writing is on the wall.


________________________________

 From: DJ Delorie <dj@...>
To: Homebrew_PCBs@yahoogroups.com 
Sent: Sunday, November 25, 2012 10:22 PM
Subject: Re: [Homebrew_PCBs] Need comparing methods for smaller IC's (0.35mm pads and 0.15mm interpads area)
 

  

I have no problem doing 0.5mm pitch ICs with UV films and an Epson R280
(2880 dpi) inkjet printer, although I use the jetstar films and custom
printing software for the densest artwork.

0.5mm is 20 mil (12px for 600 dpi), and the pads are 13mil with 7mil
gap.  You might be able to do get away with 8/4 pixels (8 pixel lines, 4
pixel spaces) on a 600 dpi laser printer, if you've practiced enough :)

The DPI of the laser printer isn't as important as how accurately it can
place the toner without the toner being "fuzzy" around the edges.  Most
of the time, the copper edges aren't straight - they're "lumpy" as the
toner is sort of "thrown" at the paper and doesn't always land exactly
where you expect it.  The "lumpyness" depends on your technique,
printer, paper, etc.

For reference, though, here's 6/6 done with toner:
http://www.delorie.com/pcb/lab/66-0.jpg
Compared to 6/6 done with UV film:
http://www.delorie.com/pcb/lab/6mil-front.jpg

Here's a sample 0.5mm pitch part done with UV films:
http://www.delorie.com/pcb/lab/6mil-0.5mm.jpg

 

[Non-text portions of this message have been removed]

They work fine for me


On Sun, Nov 25, 2012 at 3:33 PM, Malcolm Parker-Lisberg <
mparkerlisberg@...> wrote:

> **
>
>
> Your links don't work as your site says don't hot link when you click on
> them!
>
> Malcolm
>
>
> I don't suffer from insanity I enjoy it!
> Mene, mene, tekel, upharsin
> The writing is on the wall.
>
> ________________________________
> From: DJ Delorie <dj@...>
> To: Homebrew_PCBs@yahoogroups.com
> Sent: Sunday, November 25, 2012 10:22 PM
> Subject: Re: [Homebrew_PCBs] Need comparing methods for smaller IC's
> (0.35mm pads and 0.15mm interpads area)
>
>
>
>
>
> I have no problem doing 0.5mm pitch ICs with UV films and an Epson R280
> (2880 dpi) inkjet printer, although I use the jetstar films and custom
> printing software for the densest artwork.
>
> 0.5mm is 20 mil (12px for 600 dpi), and the pads are 13mil with 7mil
> gap. You might be able to do get away with 8/4 pixels (8 pixel lines, 4
> pixel spaces) on a 600 dpi laser printer, if you've practiced enough :)
>
> The DPI of the laser printer isn't as important as how accurately it can
> place the toner without the toner being "fuzzy" around the edges. Most
> of the time, the copper edges aren't straight - they're "lumpy" as the
> toner is sort of "thrown" at the paper and doesn't always land exactly
> where you expect it. The "lumpyness" depends on your technique,
> printer, paper, etc.
>
> For reference, though, here's 6/6 done with toner:
> http://www.delorie.com/pcb/lab/66-0.jpg
> Compared to 6/6 done with UV film:
> http://www.delorie.com/pcb/lab/6mil-front.jpg
>
> Here's a sample 0.5mm pitch part done with UV films:
> http://www.delorie.com/pcb/lab/6mil-0.5mm.jpg
>
> [Non-text portions of this message have been removed]
>
>  
>


[Non-text portions of this message have been removed]

i had no problems with the links try a different browser

On Sun, Nov 25, 2012 at 5:33 PM, Malcolm Parker-Lisberg <
mparkerlisberg@...> wrote:

> **
>
>
> Your links don't work as your site says don't hot link when you click on
> them!
>
> Malcolm
>
>
> I don't suffer from insanity I enjoy it!
> Mene, mene, tekel, upharsin
> The writing is on the wall.
>
> ________________________________
> From: DJ Delorie <dj@...>
> To: Homebrew_PCBs@yahoogroups.com
> Sent: Sunday, November 25, 2012 10:22 PM
> Subject: Re: [Homebrew_PCBs] Need comparing methods for smaller IC's
> (0.35mm pads and 0.15mm interpads area)
>
>
>
>
>
> I have no problem doing 0.5mm pitch ICs with UV films and an Epson R280
> (2880 dpi) inkjet printer, although I use the jetstar films and custom
> printing software for the densest artwork.
>
> 0.5mm is 20 mil (12px for 600 dpi), and the pads are 13mil with 7mil
> gap. You might be able to do get away with 8/4 pixels (8 pixel lines, 4
> pixel spaces) on a 600 dpi laser printer, if you've practiced enough :)
>
> The DPI of the laser printer isn't as important as how accurately it can
> place the toner without the toner being "fuzzy" around the edges. Most
> of the time, the copper edges aren't straight - they're "lumpy" as the
> toner is sort of "thrown" at the paper and doesn't always land exactly
> where you expect it. The "lumpyness" depends on your technique,
> printer, paper, etc.
>
> For reference, though, here's 6/6 done with toner:
> http://www.delorie.com/pcb/lab/66-0.jpg
> Compared to 6/6 done with UV film:
> http://www.delorie.com/pcb/lab/6mil-front.jpg
>
> Here's a sample 0.5mm pitch part done with UV films:
> http://www.delorie.com/pcb/lab/6mil-0.5mm.jpg
>
> [Non-text portions of this message have been removed]
>
>  
>



-- 
jeremy youngs


[Non-text portions of this message have been removed]

Works for me too ...

Was the toner transfer with paper or vinyl ?

Mike KC7NOA 

> To: Homebrew_PCBs@yahoogroups.com
> From: jcyoungs76@...
> Date: Sun, 25 Nov 2012 18:38:43 -0500
> Subject: Re: [Homebrew_PCBs] Need comparing methods for smaller IC's (0.35mm pads and 0.15mm interpads area)
> 
> i had no problems with the links try a different browser
> 
> On Sun, Nov 25, 2012 at 5:33 PM, Malcolm Parker-Lisberg <
> mparkerlisberg@...> wrote:
> 
> > **
> >
> >
> > Your links don't work as your site says don't hot link when you click on
> > them!
> >
> > Malcolm
> >
> >
> > I don't suffer from insanity I enjoy it!
> > Mene, mene, tekel, upharsin
> > The writing is on the wall.
> >
> > ________________________________
> > From: DJ Delorie <dj@...>
> > To: Homebrew_PCBs@yahoogroups.com
> > Sent: Sunday, November 25, 2012 10:22 PM
> > Subject: Re: [Homebrew_PCBs] Need comparing methods for smaller IC's
> > (0.35mm pads and 0.15mm interpads area)
> >
> >
> >
> >
> >
> > I have no problem doing 0.5mm pitch ICs with UV films and an Epson R280
> > (2880 dpi) inkjet printer, although I use the jetstar films and custom
> > printing software for the densest artwork.
> >
> > 0.5mm is 20 mil (12px for 600 dpi), and the pads are 13mil with 7mil
> > gap. You might be able to do get away with 8/4 pixels (8 pixel lines, 4
> > pixel spaces) on a 600 dpi laser printer, if you've practiced enough :)
> >
> > The DPI of the laser printer isn't as important as how accurately it can
> > place the toner without the toner being "fuzzy" around the edges. Most
> > of the time, the copper edges aren't straight - they're "lumpy" as the
> > toner is sort of "thrown" at the paper and doesn't always land exactly
> > where you expect it. The "lumpyness" depends on your technique,
> > printer, paper, etc.
> >
> > For reference, though, here's 6/6 done with toner:
> > http://www.delorie.com/pcb/lab/66-0.jpg
> > Compared to 6/6 done with UV film:
> > http://www.delorie.com/pcb/lab/6mil-front.jpg
> >
> > Here's a sample 0.5mm pitch part done with UV films:
> > http://www.delorie.com/pcb/lab/6mil-0.5mm.jpg
> >
> > [Non-text portions of this message have been removed]
> >
> >  
> >
> 
> 
> 
> -- 
> jeremy youngs
> 
> 
> [Non-text portions of this message have been removed]
> 
> 
> 
> ------------------------------------
> 
> Be sure to visit the group home and check for new Links, Files, and Photos:
> http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links
> 
> 
> 
 		 	   		  

[Non-text portions of this message have been removed]

I've had good luck doing toner transfer with kitchen parchment paper.

Rick

-----Original Message-----
From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com]
On Behalf Of MIKE DURKIN
Sent: Sunday, November 25, 2012 5:09 PM
To: homebrew_pcbs@yahoogroups.com
Subject: RE: [Homebrew_PCBs] Need comparing methods for smaller IC's (0.35mm
pads and 0.15mm interpads area)

Works for me too ...

Was the toner transfer with paper or vinyl ?

Mike KC7NOA 

> To: Homebrew_PCBs@yahoogroups.com
> From: jcyoungs76@...
> Date: Sun, 25 Nov 2012 18:38:43 -0500
> Subject: Re: [Homebrew_PCBs] Need comparing methods for smaller IC's 
> (0.35mm pads and 0.15mm interpads area)
> 
> i had no problems with the links try a different browser
> 
> On Sun, Nov 25, 2012 at 5:33 PM, Malcolm Parker-Lisberg < 
> mparkerlisberg@...> wrote:
> 
> > **
> >
> >
> > Your links don't work as your site says don't hot link when you 
> > click on them!
> >
> > Malcolm
> >
> >
> > I don't suffer from insanity I enjoy it!
> > Mene, mene, tekel, upharsin
> > The writing is on the wall.
> >
> > ________________________________
> > From: DJ Delorie <dj@...>
> > To: Homebrew_PCBs@yahoogroups.com
> > Sent: Sunday, November 25, 2012 10:22 PM
> > Subject: Re: [Homebrew_PCBs] Need comparing methods for smaller IC's 
> > (0.35mm pads and 0.15mm interpads area)
> >
> >
> >
> >
> >
> > I have no problem doing 0.5mm pitch ICs with UV films and an Epson 
> > R280
> > (2880 dpi) inkjet printer, although I use the jetstar films and 
> > custom printing software for the densest artwork.
> >
> > 0.5mm is 20 mil (12px for 600 dpi), and the pads are 13mil with 7mil 
> > gap. You might be able to do get away with 8/4 pixels (8 pixel 
> > lines, 4 pixel spaces) on a 600 dpi laser printer, if you've 
> > practiced enough :)
> >
> > The DPI of the laser printer isn't as important as how accurately it 
> > can place the toner without the toner being "fuzzy" around the 
> > edges. Most of the time, the copper edges aren't straight - they're 
> > "lumpy" as the toner is sort of "thrown" at the paper and doesn't 
> > always land exactly where you expect it. The "lumpyness" depends on 
> > your technique, printer, paper, etc.
> >
> > For reference, though, here's 6/6 done with toner:
> > http://www.delorie.com/pcb/lab/66-0.jpg
> > Compared to 6/6 done with UV film:
> > http://www.delorie.com/pcb/lab/6mil-front.jpg
> >
> > Here's a sample 0.5mm pitch part done with UV films:
> > http://www.delorie.com/pcb/lab/6mil-0.5mm.jpg
> >
> > [Non-text portions of this message have been removed]
> >
> >  
> >
> 
> 
> 
> --
> jeremy youngs
> 
> 
> [Non-text portions of this message have been removed]
> 
> 
> 
> ------------------------------------
> 
> Be sure to visit the group home and check for new Links, Files, and
Photos:
> http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links
> 
> 
> 
 		 	   		  

[Non-text portions of this message have been removed]



------------------------------------

Be sure to visit the group home and check for new Links, Files, and Photos:
http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links

Now that iv got a working 1700n laser printer ... I was planning on swiping a 4" square of vinyl from my wifes silhouette ... and probably print an image of a UHFSDR and see how that goes ...

KC7NOA 

To: Homebrew_PCBs@yahoogroups.com

From: rgsparber@...
Date: Sun, 25 Nov 2012 17:11:15 -0700
Subject: RE: [Homebrew_PCBs] Need comparing methods for smaller IC's (0.35mm pads and 0.15mm interpads area)
















 



  


    
      
      
      I've had good luck doing toner transfer with kitchen parchment paper.



Rick



-----Original Message-----

From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com]

On Behalf Of MIKE DURKIN

Sent: Sunday, November 25, 2012 5:09 PM

To: homebrew_pcbs@yahoogroups.com

Subject: RE: [Homebrew_PCBs] Need comparing methods for smaller IC's (0.35mm

pads and 0.15mm interpads area)



Works for me too ...



Was the toner transfer with paper or vinyl ?



Mike KC7NOA 



> To: Homebrew_PCBs@yahoogroups.com

> From: jcyoungs76@...

> Date: Sun, 25 Nov 2012 18:38:43 -0500

> Subject: Re: [Homebrew_PCBs] Need comparing methods for smaller IC's 

> (0.35mm pads and 0.15mm interpads area)

> 

> i had no problems with the links try a different browser

> 

> On Sun, Nov 25, 2012 at 5:33 PM, Malcolm Parker-Lisberg < 

> mparkerlisberg@...> wrote:

> 

> > **

> >

> >

> > Your links don't work as your site says don't hot link when you 

> > click on them!

> >

> > Malcolm

> >

> >

> > I don't suffer from insanity I enjoy it!

> > Mene, mene, tekel, upharsin

> > The writing is on the wall.

> >

> > ________________________________

> > From: DJ Delorie <dj@...>

> > To: Homebrew_PCBs@yahoogroups.com

> > Sent: Sunday, November 25, 2012 10:22 PM

> > Subject: Re: [Homebrew_PCBs] Need comparing methods for smaller IC's 

> > (0.35mm pads and 0.15mm interpads area)

> >

> >

> >

> >

> >

> > I have no problem doing 0.5mm pitch ICs with UV films and an Epson 

> > R280

> > (2880 dpi) inkjet printer, although I use the jetstar films and 

> > custom printing software for the densest artwork.

> >

> > 0.5mm is 20 mil (12px for 600 dpi), and the pads are 13mil with 7mil 

> > gap. You might be able to do get away with 8/4 pixels (8 pixel 

> > lines, 4 pixel spaces) on a 600 dpi laser printer, if you've 

> > practiced enough :)

> >

> > The DPI of the laser printer isn't as important as how accurately it 

> > can place the toner without the toner being "fuzzy" around the 

> > edges. Most of the time, the copper edges aren't straight - they're 

> > "lumpy" as the toner is sort of "thrown" at the paper and doesn't 

> > always land exactly where you expect it. The "lumpyness" depends on 

> > your technique, printer, paper, etc.

> >

> > For reference, though, here's 6/6 done with toner:

> > http://www.delorie.com/pcb/lab/66-0.jpg

> > Compared to 6/6 done with UV film:

> > http://www.delorie.com/pcb/lab/6mil-front.jpg

> >

> > Here's a sample 0.5mm pitch part done with UV films:

> > http://www.delorie.com/pcb/lab/6mil-0.5mm.jpg

> >

> > [Non-text portions of this message have been removed]

> >

> >  

> >

> 

> 

> 

> --

> jeremy youngs

> 

> 

> [Non-text portions of this message have been removed]

> 

> 

> 

> ------------------------------------

> 

> Be sure to visit the group home and check for new Links, Files, and

Photos:

> http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links

> 

> 

> 

 		 	   		  



[Non-text portions of this message have been removed]



------------------------------------



Be sure to visit the group home and check for new Links, Files, and Photos:

http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links






    
     

    
    






  






 		 	   		  

[Non-text portions of this message have been removed]

Malcolm Parker-Lisberg <mparkerlisberg@...> writes:
> Your links don't work as your site says don't hot link when you click on them!

If you're viewing my messages in a web browser instead of mail, replace
".jpg" with ".html" to get the image.

I had a lot of problems with people using my web server to serve images
for their sites, so I auto-blocked those.

MIKE DURKIN <Patriot121@...> writes:
> Was the toner transfer with paper or vinyl ?

I've tried both the Pulsar paper and transparencies.