[PEDA] Problems With Gerbers Generated With Protel 99SE SP5......
Hello all, I was just in the process of going over some gerbers for our latest board design. I was looking at Mid Layer 1, where in my design I have placed circular traces (8 mil wide tied to a internal ground plane with 30 mil diameter pad with a 15 mil hole) around areas where summing junctions of OP Amps pass from the top of the board to the bottom of the board. I noticed that in some cases there were some pads missing. Some of these guards have pads connecting them to an internal plane and some just have a drill hit. No pad what so ever. The pads are there in all cases when I look at the PCB in Protel. Has any one else seen this phenomenon? Shouldn't there be a pad everywhere there is a trace that passes through the board even on in internal signal layer? Thank you for your time and have a nice day. John Branthoover: Electrical Design Engineer : Acutronic R D:Phone (412) 968-1051 137/139 Delta Drive :Fax(412) 963-0519 Pittsburgh PA 15238 :Email [EMAIL PROTECTED] USA :WEBhttp://www.acutronic.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To join or leave this list visit: * http://www.techservinc.com/protelusers/subscrib.html * - or email - * mailto:[EMAIL PROTECTED]?body=leave%20proteledaforum * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Re: [PEDA] Problems With Gerbers Generated With Protel 99SE SP5......
I'm wondering if the missing pads are ones that end on an arc? I've seen this with SP5, any trace that ends in an arc and has a via at the end will not show up on mid layers on the gerbers. SP6 supposedly fixes this. A fix for SP5 is to add a small trace (one that doesn't go past the via) on the same layer as the arc. This has worked for me. - Original Message - From: John Branthoover [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, March 29, 2001 4:58 PM Subject: [PEDA] Problems With Gerbers Generated With Protel 99SE SP5.. Hello all, I was just in the process of going over some gerbers for our latest board design. I was looking at Mid Layer 1, where in my design I have placed circular traces (8 mil wide tied to a internal ground plane with 30 mil diameter pad with a 15 mil hole) around areas where summing junctions of OP Amps pass from the top of the board to the bottom of the board. I noticed that in some cases there were some pads missing. Some of these guards have pads connecting them to an internal plane and some just have a drill hit. No pad what so ever. The pads are there in all cases when I look at the PCB in Protel. Has any one else seen this phenomenon? Shouldn't there be a pad everywhere there is a trace that passes through the board even on in internal signal layer? Thank you for your time and have a nice day. John Branthoover: Electrical Design Engineer : Acutronic R D:Phone (412) 968-1051 137/139 Delta Drive :Fax(412) 963-0519 Pittsburgh PA 15238 :Email [EMAIL PROTECTED] USA :WEBhttp://www.acutronic.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To join or leave this list visit: * http://www.techservinc.com/protelusers/subscrib.html * - or email - * mailto:[EMAIL PROTECTED]?body=leave%20proteledaforum * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Re: [PEDA] Problems With Gerbers Generated With Protel 99SE SP5......
I was just in the process of going over some gerbers for our latest board design. I was looking at Mid Layer 1, where in my design I have placed circular traces (8 mil wide tied to a internal ground plane with 30 mil diameter pad with a 15 mil hole) around areas where summing junctions of OP Amps pass from the top of the board to the bottom of the board. I noticed that in some cases there were some pads missing. Some of these guards have pads connecting them to an internal plane and some just have a drill hit. No pad what so ever. The pads are there in all cases when I look at the PCB in Protel. Has any one else seen this phenomenon? Shouldn't there be a pad everywhere there is a trace that passes through the board even on in internal signal layer? John Branthoover I suspect that the option of including unconnected mid layer pads has not been selected. I don't have Protel 99 SE open at present, but in the CAM Manager server, the dialog box provided for setting up Gerber files has a number of tabs, and on one of those, there is a checkbox provided for controlling that setting. Check that checkbox and then re-generate your Gerber files. Regards, Geoff Harland. - E-Mail Disclaimer The Information in this e-mail is confidential and may be legally privileged. It is intended solely for the addressee. Access to this e-mail by anyone else is unauthorised. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. Any opinions or advice contained in this e-mail are confidential and not for public display. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To join or leave this list visit: * http://www.techservinc.com/protelusers/subscrib.html * - or email - * mailto:[EMAIL PROTECTED]?body=leave%20proteledaforum * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Re: [PEDA] Problems With Gerbers Generated With Protel 99SE SP5......
Yes with 99SE and SP5 I have seen inner layer gerbers with a pad missing. Luckily this was spotted during error checking of Gerbers by our PCB manufacturer and the missing pad added at Gerber level. No matter how hard we tried we could not get the pad to appear. Even trying different machines and setups, pad missing. Using SP6 though all pads present. So update to SP6 and try again. regards Ian -Original Message- From: John Branthoover [mailto:[EMAIL PROTECTED]] Sent: 29 March 2001 21:58 To: [EMAIL PROTECTED] Subject: [PEDA] Problems With Gerbers Generated With Protel 99SE SP5.. Hello all, I was just in the process of going over some gerbers for our latest board design. I was looking at Mid Layer 1, where in my design I have placed circular traces (8 mil wide tied to a internal ground plane with 30 mil diameter pad with a 15 mil hole) around areas where summing junctions of OP Amps pass from the top of the board to the bottom of the board. I noticed that in some cases there were some pads missing. Some of these guards have pads connecting them to an internal plane and some just have a drill hit. No pad what so ever. The pads are there in all cases when I look at the PCB in Protel. Has any one else seen this phenomenon? Shouldn't there be a pad everywhere there is a trace that passes through the board even on in internal signal layer? Thank you for your time and have a nice day. John Branthoover: Electrical Design Engineer : Acutronic R D:Phone (412) 968-1051 137/139 Delta Drive :Fax(412) 963-0519 Pittsburgh PA 15238 :Email [EMAIL PROTECTED] USA :WEBhttp://www.acutronic.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To join or leave this list visit: * http://www.techservinc.com/protelusers/subscrib.html * - or email - * mailto:[EMAIL PROTECTED]?body=leave%20proteledaforum * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
