Hello group, We have a customer who is applying a fresh set of eyes to some 6012 details. He bought ~1000 panels of class 2 product and ask us to perform structural integrity conformance testing. There are no A-B coupons, so he sent 27 arrays. We took one board from each array and pulled 4 rows of holes. We do this over sampling in an attempt to level the playing field with coupon work. For instance there should be (at least) 12- layer 2 or N-1 plating connections to observe... So anyway, although I don't remember exactly, there was about 20 holes per panel sectioned. Great lookin boards, but... of the 27, 15 of them exhibited one isolated thin area of plating (a void) and 1 of the 27 had two isolated areas. Although I have a opinion, I believe that there is not a unique answer to the proper "6012 disposition" of this lot. Any ideas? Don't forget section 4.2.2. Thanks in advance, Chris Chris Mahanna Quality Manager Robisan Laboratory Inc. 6502 E 21st Street Indianapolis, Indiana 46219 phone 317.353.6249 fax 317.917.2379