{"action":"created","issue":{"url":"https://api.github.com/repos/KiCad/kicad-footprints/issues/990","repository_url":"https://api.github.com/repos/KiCad/kicad-footprints","labels_url":"https://api.github.com/repos/KiCad/kicad-footprints/issues/990/labels{/name}","comments_url":"https://api.github.com/repos/KiCad/kicad-footprints/issues/990/comments","events_url":"https://api.github.com/repos/KiCad/kicad-footprints/issues/990/events","html_url":"https://github.com/KiCad/kicad-footprints/pull/990","id":366171837,"node_id":"MDExOlB1bGxSZXF1ZXN0MjE5OTEyNzAy","number":990,"title":"Add 44- and 64-pin dual row QFN","user":{"login":"fauxpark","id":4781841,"node_id":"MDQ6VXNlcjQ3ODE4NDE=","avatar_url":"https://avatars3.githubusercontent.com/u/4781841?v=4","gravatar_id":"","url":"https://api.github.com/users/fauxpark","html_url":"https://github.com/fauxpark","followers_url":"https://api.github.com/users/fauxpark/followers","following_url":"https://api.github.com/users/fauxpark/following{/other_user}","gists_url":"https://api.github.com/users/fauxpark/gists{/gist_id}","starred_url":"https://api.github.com/users/fauxpark/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/fauxpark/subscriptions","organizations_url":"https://api.github.com/users/fauxpark/orgs","repos_url":"https://api.github.com/users/fauxpark/repos","events_url":"https://api.github.com/users/fauxpark/events{/privacy}","received_events_url":"https://api.github.com/users/fauxpark/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":{"login":"evanshultz","id":1936989,"node_id":"MDQ6VXNlcjE5MzY5ODk=","avatar_url":"https://avatars0.githubusercontent.com/u/1936989?v=4","gravatar_id":"","url":"https://api.github.com/users/evanshultz","html_url":"https://github.com/evanshultz","followers_url":"https://api.github.com/users/evanshultz/followers","following_url":"https://api.github.com/users/evanshultz/following{/other_user}","gists_url":"https://api.github.com/users/evanshultz/gists{/gist_id}","starred_url":"https://api.github.com/users/evanshultz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/evanshultz/subscriptions","organizations_url":"https://api.github.com/users/evanshultz/orgs","repos_url":"https://api.github.com/users/evanshultz/repos","events_url":"https://api.github.com/users/evanshultz/events{/privacy}","received_events_url":"https://api.github.com/users/evanshultz/received_events","type":"User","site_admin":false},"assignees":[{"login":"evanshultz","id":1936989,"node_id":"MDQ6VXNlcjE5MzY5ODk=","avatar_url":"https://avatars0.githubusercontent.com/u/1936989?v=4","gravatar_id":"","url":"https://api.github.com/users/evanshultz","html_url":"https://github.com/evanshultz","followers_url":"https://api.github.com/users/evanshultz/followers","following_url":"https://api.github.com/users/evanshultz/following{/other_user}","gists_url":"https://api.github.com/users/evanshultz/gists{/gist_id}","starred_url":"https://api.github.com/users/evanshultz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/evanshultz/subscriptions","organizations_url":"https://api.github.com/users/evanshultz/orgs","repos_url":"https://api.github.com/users/evanshultz/repos","events_url":"https://api.github.com/users/evanshultz/events{/privacy}","received_events_url":"https://api.github.com/users/evanshultz/received_events","type":"User","site_admin":false}],"milestone":null,"comments":0,"created_at":"2018-10-03T04:35:14Z","updated_at":"2018-10-04T16:12:09Z","closed_at":null,"author_association":"CONTRIBUTOR","pull_request":{"url":"https://api.github.com/repos/KiCad/kicad-footprints/pulls/990","html_url":"https://github.com/KiCad/kicad-footprints/pull/990","diff_url":"https://github.com/KiCad/kicad-footprints/pull/990.diff","patch_url":"https://github.com/KiCad/kicad-footprints/pull/990.patch"},"body":"Used by several Atmel MCUs. Not sure how to name them, it seems to be referred to in the datasheet as \"DRQFN\".\r\nPad sizes are again just nominal lead size so they probably need adjusting to conform to IPC specs.\r\n\r\n![44](https://user-images.githubusercontent.com/4781841/46389864-00b7fb00-c718-11e8-8dc9-b22f0260d709.png)\r\nDatasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-8272-8-bit-AVR-microcontroller-ATmega164A_PA-324A_PA-644A_PA-1284_P_datasheet.pdf#page=646\r\n\r\n![64](https://user-images.githubusercontent.com/4781841/46389871-04e41880-c718-11e8-8eda-35c7049564b7.png)\r\nDatasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-8074-8-and-16-bit-AVR-Microcontroller-XMEGA-B-ATxmega64B3-ATxmega128B3_Datasheet.pdf#page=70\r\n\r\n------------\r\n\r\nThanks for creating a pull request to contribute to the KiCad libraries! To speed up integration of your PR, please check the following items:\r\n\r\n- [x] Provide a URL to a datasheet for the footprint(s) you are contributing\r\n- [x] An example screenshot image is very helpful \r\n- [x] If there are matching symbol or 3D model pull requests, provide link(s) as appropriate\r\n- [x] Check the output of the Travis automated check scripts - fix any errors as required\r\n"},"comment":{"url":"https://api.github.com/repos/KiCad/kicad-footprints/issues/comments/427078423","html_url":"https://github.com/KiCad/kicad-footprints/pull/990#issuecomment-427078423","issue_url":"https://api.github.com/repos/KiCad/kicad-footprints/issues/990","id":427078423,"node_id":"MDEyOklzc3VlQ29tbWVudDQyNzA3ODQyMw==","user":{"login":"evanshultz","id":1936989,"node_id":"MDQ6VXNlcjE5MzY5ODk=","avatar_url":"https://avatars0.githubusercontent.com/u/1936989?v=4","gravatar_id":"","url":"https://api.github.com/users/evanshultz","html_url":"https://github.com/evanshultz","followers_url":"https://api.github.com/users/evanshultz/followers","following_url":"https://api.github.com/users/evanshultz/following{/other_user}","gists_url":"https://api.github.com/users/evanshultz/gists{/gist_id}","starred_url":"https://api.github.com/users/evanshultz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/evanshultz/subscriptions","organizations_url":"https://api.github.com/users/evanshultz/orgs","repos_url":"https://api.github.com/users/evanshultz/repos","events_url":"https://api.github.com/users/evanshultz/events{/privacy}","received_events_url":"https://api.github.com/users/evanshultz/received_events","type":"User","site_admin":false},"created_at":"2018-10-04T16:12:09Z","updated_at":"2018-10-04T16:12:09Z","author_association":"CONTRIBUTOR","body":"So you made these by hand, right? Not scripted?\r\n\r\nInstead of the datasheet as documentation, could you use the Microchip packaging info? It also includes footprint recommendations. For the 64 pin on, it's either http://ww1.microchip.com/downloads/en/DeviceDoc/64L_VQFN_7x7_Dual_Row_[SVB]_C04-21420a.pdf or http://ww1.microchip.com/downloads/en/DeviceDoc/64L_VQFN_7x7_Dual_Row_[SUB]_C04-21420a.pdf. Can you figure out which one (both say ZXC so I gave up at that point) and find the right 44 pin one? Your silk style is perfect and we should be able to use rounded rect pads in all locations (IPC 7351C is replacing oblong/oval and D-shape with rounded rect) but it may take seeing it built to know if this will maintain at least 0.2mm clearance between all pads. We can dig into the heel and toe requirements from IPC for this type of package if we need to.\r\n\r\nAlso, could you include a thermal vias version of each? A grid of 0.3mm drill (0.6mm annular ring) vias about 1mm apart (3x3 for the 2.6mm EP and 5x5 for the 4mm EP) should be good.\r\n\r\nTo confirm, symbols using these footprints are not in the lib yet, right? I don't see them but I could just be missing them."}}
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