On 03/09/15 02:12, Luke Kenneth Casson Leighton wrote:
ok, i checked with the eurocircuits online system, they can't handleIt's worth actually contacting PCB vendors with your requirements. The specs listed for the online pool/quick quote type services are often not the absolute limits of what the vendor can do.
the power board.
the LTC4155 is handling 4 amps, so the app note says that 2oz copperLTC recommend 0.25 mm pads and the chip has a 0.5 mm pad pitch which leaves a 0.25 mm between pads.
is needed. however, eurocircuits require a minimum track-to-track
clearance of 10mil which is totally incompatible with the distance
even between pads of the LTC4155 IC!
That is under 10 mil but only barely.
therefore we conclude, simply, that eurocircuits doesn't have goodIf you get desperate then contact zot, if they can't make it then proabablly noone can.
enough equipment, therefore it is necessary to find an alternative PCB
prototyping company.
i've managed to get the track-to-track distance to 7mil, smallest via
is 10mil with a 24mil ring, track width is a minimum of 8mil, and the
size of the PCB is tiny: 3.4in x 1.2in. it's only two layer,
components only on one side, but the copper needs to be 2oz.
can anyone help with PCB manufacturing at all?
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