The product in question was in prototype phase with 2 sets of blind/buried vias without much manufacturing success. Several board shops had tried to manufacture the board and the customer was getting faulty boards. Candor was given the board and requested to see what the problem was and provide some design recommendations to the customer. The blind and buried vias were a board real estate issues and conventional board shops cannot do anything about it. Candor recommended the board use landless vias, a Candor specialty instead of all the complex drilling, the extra real estate allowed for a pure through via build saving cost and time with prototyping. Once the testing was done on a landless prototype, a suitable design for mass production was built with overall savings across the whole process of prototyping.
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