AVR-Chat

I have never made two-layer boards but I have made many double-sided
boards myself. I'm not set up to mass-produce boards but I can usually
make 3 or 4 at a time with no problem.

I made some boards for 47 and 78 GHz (millimeter-wave) ham radio
projects. The tiny circuits are etched on 5-mil thick Duroid
teflon-fiberglass board. I used some HSCH9251 "flip-chip" diodes.
These have packages about 10 mils square, and with leads the devices
are about 28 mils long. The leads are a few mils wide. They look like
fly specks. You can't solder them; there are two common ways of
mounting them - wirebonding and with conductive silver-epoxy such as
Epotek H20e. I use the silver epoxy.

Zack

On 5/13/11, Hakon Gudmundsson <h_instruments@yahoo.com> wrote:
> If you need a PCB board of your design try H-Instruments:
>
> Get 5 pcs of your PCB boards. 5 indentical boards.
> 2 layers. Any size less than 100x100mm only 59.95$ with shipping
> Any size less than 50x50mm only 29.95 $ with free shipping
>
> See: http://www.h-instruments.com or http://www.h-instruments.ecrater.com
>
> We accept Gerber files in RS-274X Format.
> Gerber files should contain following layers:
> - Gerber Board Outline
> - Gerber Bottom Layer
> - Gerber Top Layer
> - Gerber Bottom Solder Resist
> - Gerber Top Solder Resist
> - Gerber Bottom Overlay
> - Gerber Top Overlay
> - Gerber Bottom Paste
> - Gerber Top Paste
> Spec:
> Files Types: Gerber 274-X, 274 and Aperture file
>
> Material: FR - 4
>
> Layer Count: 2
>
> Maximum Panel Size: 100mm x 100mm
>
> Board Size Tolerance: +/- 0.2mm
>
> Board Thickness: 1.6 mm
>
> Board Thickless Tolerance: +/- 10%
>
> Minimum Line Width and Spacing: 0.1524mm
>
> Minimum Hole Diameter: 0.3mm
>
> Standard Lead Time: 5 - 7 business days
>
>
> Free airmail shipping with tracking no. includet
> We send to USA, Canada and most countries in Europe.
>
>
>