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Old 13th July 2013, 12:19 PM   #31
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Just released tinned pcb on FR4 support is attached.
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File Type: jpg PCB-FR4-TINNED.jpg (380.2 KB, 313 views)
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Old 19th July 2013, 05:16 PM   #32
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Printed circuit board ( PCB ) on CEM3 support.
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File Type: jpg PRINTED-CIRCUIT-BOARD-CEM3.jpg (246.8 KB, 280 views)
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Old 20th July 2013, 04:52 PM   #33
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Below you can see my DEMO BOARD = traces = 0,2 mm , spaces=0,2 mm
(8/8 DRC )
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File Type: jpg DEMO BOARD- 40x30 mm -0.2-trace-0.2-space.jpg (94.0 KB, 280 views)
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Old 20th July 2013, 05:00 PM   #34
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Has anyone used these ? I bought some cheap PCBs the other week, the first one blew up, the second one went into the bin. I hasten to add that they were not from this guy.
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Old 20th July 2013, 05:04 PM   #35
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Could you be more clear ?

What you mean ?

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Originally Posted by KatieandDad View Post
Has anyone used these ? I bought some cheap PCBs the other week, the first one blew up, the second one went into the bin. I hasten to add that they were not from this guy.
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Old 20th July 2013, 05:07 PM   #36
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You pay your money and you takes your choice.

I bought some cheap PCBs and they were utter rubbish.
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Old 20th July 2013, 05:16 PM   #37
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On FR4 fiiberglass the quality is OK ! ( look above feedback from Francisco Perez -Spain ) .........he was very happy for my release.

On CEM3 support ( yellow , nontransparent ) here we cal talk about diferent quality of boards ( some of them could not be strong enough if you solder /unsolder for too much times.

Anyway I don't use also this kind of CEM3.

But in general , even on FR4 could be the same if you use a not correctly temperature of solder station when you solder / unsolder.

TINNING is very helpful for soldering.

I consider that my pcb's are looks great for a home-made release.

If I can do it them in cheapest way don't means that have low quality.

All the best,

Mihai


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You pay your money and you takes your choice.

I bought some cheap PCBs and they were utter rubbish.
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Old 27th July 2013, 01:10 PM   #38
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Bellow can be found , the just released printed circuit board , double layer , on fiberglass support.
The backside layer is "untouched" because is the screen of transverter 1296 Mhz.

The quality of pcb is amazing if we take in consideration that has been done from a very old scanned document with less than 200 dpi grey, resolution.
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Old 27th July 2013, 01:17 PM   #39
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Can you please detail the minimum track width and minimum track clearance that your process can accurately deal with.
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Old 27th July 2013, 01:26 PM   #40
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KatieandDad, I already uploaded above a DEMO BOARD

Below you can see my DEMO BOARD = traces = 0,2 mm , spaces=0,2 mm



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Can you please detail the minimum track width and minimum track clearance that your process can accurately deal with.
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