Danny, Man, I just hope you didn't get burned $$$wise on this. At least with the appropriate netlist provided, and your.rpt files the fab house HAS to eat these boards. I also hope you have found another fab house to use, that won't NOT tell you what it does. They didn't tell you they couldn't verify the gerbers? Unbelievable! But, I still won't use 274X. :) I'm working with fab houses using the ODB++ formats, and have Valor Enterprise. I thought Sceptor was for Mentor users to verify WYSIWYG their gerbers. I've never heard of a fab house using it. Mitch :) >Date: Thu, 22 Oct 1998 09:17:08 -0700 >To: "DesignerCouncil E-Mail Forum." <[log in to unmask]>, > Mitch Morey <[log in to unmask]> >From: Danny Gross <[log in to unmask]> >Subject: Re: [DC] RS274X format problem > >Mitch, > >I always provide an IPC356 netlist to the fab house, however not all fab >houses can use it. As it turns out, the prototype fab house we use has a >verification software package called Royal Sceptor by Mentor Graphics. I >run a script which produced several ".rpt" files which they import for >gerber verification against my CAD netlist. There is one BIG PROBLEM! >This verification software cannot handle composites. I did not know this >and as a result the verification was not done and we did indeed get back a >bad board. > >Regards, > >Danny > >At 04:44 PM 10/21/98 PDT, you wrote: >>Danny, >> >>I assume you also provided the fab house and IPC-356 netlist to verify >>your gerbers. (????) If not, DO! I'm hearing so many horror stories on >>fab houses only doing gerber-gerber generated netlists for comparison! >>We've been burned 3 times in the last 6 months! They've even done it >>when we did provide the 356 netlist! Unfortunately for me, the vendor >>selection is out of my hands, but we are learning what the "low-cost" >>vendors do. I'm just happy we have some great fab houses in the So.Cal >>area! :) >> >>Do provide an "electrical netlist" to verify the gerber files! And this >>is especially true if you use 274X. >> >>Good luck. >> >>Mitch Morey >> >>(P.S. you can get a SKILL routine for IPC-356 generation from the >>Cadence SourceLink site.) >> >> >>>Date: Mon, 19 Oct 1998 13:48:27 -0700 >>>Reply-To: "DesignerCouncil E-Mail Forum." >><[log in to unmask]>, >>> Danny Gross <[log in to unmask]> >>>From: Danny Gross <[log in to unmask]> >>>Subject: Re: [DC] RS274X format problem >>>To: [log in to unmask] >>> >>>I just recently submitted a RS274X output from Allegro Designer 13.0 to >>a >>>fab house that told me it would take them about 1 hour per layer to >>process >>>because of the number of composites. I had to resubmit the data in >>>standard gerber format. >>> >>>Regards, >>> >>>Danny Gross >>> >>>At 08:49 PM 10/13/98 -0400, you wrote: >>>>Hello, >>>> >>>>The fab house I'm using has encountered a problem importing my RS274X >>>artwork. >>>>I believe their software is having a hard time compositing(?) the >>power >>>plane layers. >>>>I'm still unsure what exactly is happening - I plan on visiting them >>>tomorrow and see >>>>first hand. >>>> >>>>My software (output) - Allegro designer - version 13 >>>>Theirs (Input) - Tibor Davos - version unknown. >>>> >>>>Has anyone else experienced any difficulties with RS274X formatted >>power >>>and ground planes >>>>generated from Allegro?? >>>> >>>>Any (I do mean ANY) help would be appreciated. >>>> >>>>Thanks >>>>Dennis Ward >>>>Net to Net Technologies >>>> >>>>################################################################ >>>>DesignerCouncil 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 DesignerCouncil <your full name> >>>>To unsubscribe: SIGNOFF DesignerCouncil >>>>################################################################ >>>>Please visit IPC's web site (http://www.ipc.org) "On-Line Services" >>>section for additional information. >>>>For technical support contact Hugo Scaramuzza at [log in to unmask] or >>>847-509-9700 ext.312 >>>>################################################################ >>>> >>>> >>>> >>>--------------------------------------------------------------------------- >>>Danny Gross (408)430-1706 >>>PCB Design Eng. [log in to unmask] >>>E-MU Systems, Inc. >>Pager(408)421-3603 >>>Scotts Valley, CA >>> >>>################################################################ >>>DesignerCouncil 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 DesignerCouncil <your full name> >>>To unsubscribe: SIGNOFF DesignerCouncil >>>################################################################ >>>Please visit IPC's web site (http://www.ipc.org) "On-Line Services" >>section for additional information. >>>For technical support contact Hugo Scaramuzza at [log in to unmask] or >>847-509-9700 ext.312 >>>################################################################ >>> >>> >> >> >>______________________________________________________ >>Get Your Private, Free Email at http://www.hotmail.com >> >>################################################################ >>DesignerCouncil 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 DesignerCouncil <your full name> >>To unsubscribe: SIGNOFF DesignerCouncil >>################################################################ >>Please visit IPC's web site (http://www.ipc.org) "On-Line Services" >section for additional information. >>For technical support contact Hugo Scaramuzza at [log in to unmask] or >847-509-9700 ext.312 >>################################################################ >> >> >> >--------------------------------------------------------------------------- >Danny Gross (408)430-1706 >PCB Design Eng. [log in to unmask] >E-MU Systems, Inc. Pager(408)421-3603 >Scotts Valley, CA > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com ################################################################ DesignerCouncil 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 DesignerCouncil <your full name> To unsubscribe: SIGNOFF DesignerCouncil ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################