Hi, Perhaps there is someone who knows what this is about: We tried out a new pcb supplier. The first protos were fine, and we purchased a bigger batch. Even these pcb´s looked fine, with an exception; All the pads were rounded, so they haven`t used our apertures at all !! Rounded apertures are for my part OK, but question remains, how this could possible happen. I asked this question and I got this as an answer: "The reason of the problem is human error. For any new P/N we load the Aperture Wheel in our Cad system in this case the operator made a mistake ( didn't consider the shape 1-2). To avoid this problem on the future production, we propose: -Aperture wheel standard -Specific program-script to load the aperture wheel in automatic way in our Cad system" Forgive my ignorance, but I don`t know what is: -P/N -Aperture Wheel -Which kind program-script is he/she referring to ? I am asking this because so far I haven`t got the answer from the supplier. I am just curious. Brs, JoSi ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ################################################################