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16 Threads found on 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
pad dimensions are calculated, based on the dimension of the leads and the type of the leads. IPC has developed a standard for land pattern dimensions. IPC-7351 I am doing land pattern creation for over 10 years now and all the dimensions needed for calculating the pad dimensions are there. You can use the free calculator from (...)
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} 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 (...)
check the color settings and display settings. As the pads are visible when you connect them so i think that they are properly created so check the settings.
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 . (...)
I am using allegro 16.3V. here i attached one image file in this file one big pads has four vias. but these vias added seperatelly its not a single symbol. Please guide me. Thanks for guideness.
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 (...)
Most definitely a SMT version. Although it is basically a PTH version where they have just straightened the pins out (or not bent them) to make it SMT, a very poor way of making it SMT. You just need pads big enough to take those pins, although your able to cut them down if you wish. Here
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
Hi guyz This is sathish.I am new to this forum.I am entry level user of cadence allegro.I would like to know whether we can design a padstack with surface pad attached to a via(by shoting) as a single pad. Please help me . regards sathish