PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/footprint-for-chip-tantalum-capacitor-with-nib_topic1503&OB=ASC_page2.html
: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5252 Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 16 Oct 2015 at 8:45am If the component mfr
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/cs-CZ/divisions/efd/products/two-component-2k-products-mixers?con=t&page=4
řešení pro přesné dávkování tekutin společnosti Nordson EFD, která umožňují nanášet tenčí povrchové vrstvy, dosáhnout vyšší přesnosti a zúžit tolerance při… Elektronika Nordson EFD
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/topic889&OB=DESC.html
. Same idea though - just switch the center pad to maximum tolerance and trim the outer lands. jnelso09 Members Profile Send Private Message Find Members Posts Add to Buddy List Active User Joined: 31 Jan 2013 Status: Offline Points
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/son-qfn-calculations_topic889_post3258.html
(thermal) land dimensions for QFN/SON is fundamentally flawed. Why? Because it assumes maximum tolerance dimensions for the center land and then trims the inside of the peripheral lands to achieve the desired gap around the center pad
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic889&OB=ASC.html
(thermal) land dimensions for QFN/SON is fundamentally flawed. Why? Because it assumes maximum tolerance dimensions for the center land and then trims the inside of the peripheral lands to achieve the desired gap around the center pad
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/cs-CZ/divisions/efd/products/two-component-2k-products-mixers?con=t&page=5
řešení pro přesné dávkování tekutin společnosti Nordson EFD, která umožňují nanášet tenčí povrchové vrstvy, dosáhnout vyšší přesnosti a zúžit tolerance při… Dávkovací hroty na návnady Nordson EFD Dávkovací hroty na návnady Nordson EFD se
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/cs-CZ/divisions/efd/products/two-component-2k-products-mixers?nor_division_facet_a=90a83b4d7dfd498896af1f6308bc567b&con=t&page=5
řešení pro přesné dávkování tekutin společnosti Nordson EFD, která umožňují nanášet tenčí povrchové vrstvy, dosáhnout vyšší přesnosti a zúžit tolerance při… Systémy držáků kartuší Nordson EFD Držáky kartuší Optimum® jsou lisované z vysoce pevného čirého
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/RSS_use-extended-footprint-names_topic997.xml
= QFN50P500X700-20NT300X500SOP, QFP, SOD, SOT Gull Wing Lead Length Tolerance = SOP50P710X120-14NL50BGA Ball Size = BGA121C50P11X11_600X600X100NB23For "component mfr
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic1649&OB=DESC.html
. There still is a minimum of 0.10 mm +/- tolerance on every dimension. No manufacturer can produce component packages that are 100% perfect every time. i.e.: no one should ever put
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/specified-vs-calculated-nominal-sizes_topic1649_post6725.html
. There still is a minimum of 0.10 mm +/- tolerance on every dimension. No manufacturer can produce component packages that are 100% perfect every time. i.e.: no one should ever put
