80% board failure, 18mil spacing in design, 30VDC caused fire.
I have had multiple failures from this company work. They are simply terrible. I ordered ten 4 layer boards with, 2 Oz copper. I saw di-electric failures between 18mil spacing at 30V DC. I assembled 4 boards out of the 10. I wont be wasting my time or money with this company again. As a nominal exercise i always flow back information to manufacturers to support fixing their process and maybe a refund, considering they dont even meet IEC standards. So... no good dead goes un-punished... I took photos and documented three individual failures.i dentified the fire location and took DMM measurements between the failures. In their response ignored the photos and brought up a Gerber and drew arrows around it and tried to tell me the connection was on the Gerber... Company dissident even read my feedback before wasting my time and sending back a response that is simply designed to deflect. Dont waste your time. Its not worth the savings unless you value your time at 0$/hour. UPDATE: boards shipped back. two hours of emails exchanges later and they still accept no responsibility. Gave written disposition to energize failed boards between the gerber geometry likely to fail. They have not done the test and bassicly just reply back with another email each time. Never resolves anything. I think the moral of the story here is dont order 4 layer boards here. that or 2Oz copper. Anyways they are about as helpful as an allergy is.