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16 Threads found on edaboard.com: Pad Creation
Hi everyone, I am using an technology which provides the IO cells with layout but no schematics and symbols. In order to facilitate the creation of the pad ring, we made the schematics and symbols for the IO cells that we need. Nevertheless, such cells has not an associated netlist. I think there is a file with the netlists of all IO cells of th
hiii all, I am just stuck with designing of one footprint, Freescale's FXTH87xx IC. Datasheet did not mention about footprint dimension,only IC dimension. Even though I have completed footprint,doubt is there regarding pad dimension. If anyone have this particular footprint,please share me or else give me a suggestion. pdf also attached. Th
Hello, I have looked for a solution to this problem everywhere, but I could not find any solution. I am trying to create a custom footprint with some custom pads. These pads are nothing special: they are a joining of 2 elementary pads. One pad is only on the top layer, the second is a multilayer pad, so (...)
hi pavan, 1.create the pad using pad Designer;{pad size is 1.47mmx0.3mm or else convert in mils 58 milx12 mil} 2.open the cadence allegro-->file-->new-->package symbol {select} then save footprint name as ssop-28pin 3.assign the path of library using setup-->user preference-->path-->library then select the pin, using Logic-->pin 4.keep one (...)
I have a question about the visibility of pads on inner layers. If i'am routing traces on inner layers i don't see the pads of , for example via's, until these are connected. I like to see all the pads on all the inner and outer layers. Is the a setting or is this normal in CR5000 ?
Use Route command and than double click to add via during footprint creation or you can use multiple drill option in pad Designer.
Hi guys This Siddharth I am new one user of cadence allegro 16.3, when I am going to create new package it is not showing any pad in default pad stack to use for symbol pins and when I am going to add new pad in package creation also no one pad showing in pad stack Box after browsing . (...)
As Kabaleevisu wrote these might be via assigned to pad during footprint creation. These vias take net alias of the pad they are placed. As you can see in blue coloured pads all vias are covered with the shape as they have same net but only yellow coloured pads and vias have isolation from shape. or (...)
sroute writes to the log many lines of the following, and then it fails to connect the power pads in the pad ring to the core... Failed to place a cell at (2847.200 2651.600) for followpin creation Failed to place a cell at (152.480 2653.280) for followpin creation Failed to place a cell at (2847.200 2653.280) for (...)
hi jayasurya, according to your data sheet it is 100% smd component. Anonymous_Ricky's data sheet is also very helpful. the pad size only directly not mentioned in that. you can grant it as 0.64x3.5mm(approx) pad size and edge to edge of total component is 15.74mm according to outline drg. you can add 0.254 mm for pad outer dimension for so
In DRD from foundry, At pad related rules sections, They will clearly describe the pad structure and layer description. If you have any doubts then...we can discuss...!!!
I'm not exactly sure what you mean by clearance between pad and drill. If you're talking about DIL pads, (the ones wih holes through the board and a solder pad), then your packeage creation tool will have these already. But for minimum clearance distances it'll be your PCB manufacturer which will supply these guidelines. (...)
HOw can i create thermal pad for pth pads in allegrow?
Hello, I am using Synopsys tools for P&R. Have completed hard macro placement, I/O pad placement, power ring creation and power strap creation on Jupiter XT and/or Astro. Would like to know how to connect the VCC and GND I/O pads to the respective power rings? Thanks in advance chetan
I am using OrCAD Layout 10.5 Can someone step me through the process for creating surface mount pads for a component. How do I create new pads that are a specific size and space them to match the part? I am new to Layout so I need all the steps. Thanks in advance
There is no need to define surface pad as shape you can easiliy attach via in to sm pad in drawing file in symbol creation. Majnoon