PCB Libraries, Inc. | https://www.pcblibraries.com/forum/different-tolerances_topic1618_post6614.html
. All Unique parts that use the mfr. recommended pattern have the mfr. abr. at the beginning of the land pattern name. This way when you look at the land pattern name you know instantly if it's IPC-7351C calculation or mfr
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/ipc7351c-draft-or-release-date_topic1818_post10416.html
. These chapters are very old and taken from the 1987 IPC-SM-782 and explain the mathematical model for land pattern calculation. But the math model is intended for public knowledge and we created an Excel spreadsheet reference calculator to prove that it works
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/ipc7351c-draft-or-release-date_topic1818&OB=ASC_page3.html
. But MANY designers will want to go smaller, even to the point where the pad area is the same size as the lead area (like power pads under no-lead devices for example
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/ipc7351c-draft-or-release-date_topic1818_page1.html
. These chapters are very old and taken from the 1987 IPC-SM-782 and explain the mathematical model for land pattern calculation. But the math model is intended for public knowledge and we created an Excel spreadsheet reference calculator to prove that it works
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/standard-chip-component-dimensions_topic1729.html
. Notice that the Height and Tolerances are missing because that is unique for every manufacturer. And the Height plays into the Toe solder joint calculation and the tolerances affect every aspect of the Land Pattern (footprint
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/standard-chip-component-dimensions_topic1729_post7070.html
. Notice that the Height and Tolerances are missing because that is unique for every manufacturer. And the Height plays into the Toe solder joint calculation and the tolerances affect every aspect of the Land Pattern (footprint
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/standard-chip-component-dimensions_topic1729_post7084.html
. Notice that the Height and Tolerances are missing because that is unique for every manufacturer. And the Height plays into the Toe solder joint calculation and the tolerances affect every aspect of the Land Pattern (footprint
| https://www.smtfactory.com/i-c-t-global-technical-support-for-automotive-electronics-europe-station.html
Robot Dispensing Robot Routing Robot SMT Peripheral Equipments SMD Counter Machine Solder Paste Products Other Equipment Consumables Solder Bar SMT Software Solution Applications LED Industry
| https://www.smtfactory.com/Development-Stage-of-SMT-Pick-and-Place-Machine-id47535177.html
Robot Dispensing Robot Routing Robot SMT Peripheral Equipments SMD Counter Machine Solder Paste Products Other Equipment Consumables Solder Bar SMT Software Solution Applications LED Industry
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/polymer-processing-systems/news/news/2019-03-13
&D and customer trials and a dedicated aftermarket center for BKG systems and EDI® extrusion and coating dies. The aftermarket center provides European customers with consumables, spare parts, and rework and repair services and is designed to minimize order lead times and reduce downtime for customers. “The new
