Eliminate Body Stress with Versatile CF-8 GPD's CF-8 eliminates component body stress. Versatility is the key word for the CF-8. Simple tooling changes make short or long run production jobs quick and easy. Capabilities Meets exacting military s
The PCB Footprint Expert is a powerful CAD library development tool powered by our own proprietary CAD LEAP Technology (Libraries Enhanced with Automated Preferences). It is packed with very powerful advanced library management features that cuts foo
Electronics Forum | Thu Mar 28 13:19:14 EDT 2019 | davef
There is no industry standard for BTC stand-off height. "IPC-7093A Design and Assembly Process Implementation for Bottom Termination SMT (BTC) Components" just finished "Final Draft for Industry Review" in December 2018. It mentions stand-off height
Electronics Forum | Wed Nov 12 04:34:17 EST 2008 | kywl
Hi all, Assuming that i were to design a PCB and there are multiple components, what is the minimum spacing required to ensure that i won't have problems in my SMT process later on? Also, is there a minimum component stand-off height spec as well?
Used SMT Equipment | Screen Printers
Very Nice Ekra E5 Stencil Printer For Sale! See attached pictures and information below Equipment Description Ekra Screen Printer Model Number: E5 Serial Number: E501582 Year 2001 Left to Right PCB Flow "Front and Back
Used SMT Equipment | Adhesive Dispensers
Camelot 1818 Glue Dispenser $3,700.00 1993 vintage -Primo Condition! Refurbished by Speedline in 2000 and only used it a few times after that! Solder Paste Syringe Downward Looking Fiducial Camera-Manual Adjust Tactile Sensor- Probe for measurin
Industry News | 2013-01-17 11:15:42.0
One of the “cleanest” areas on the IPC APEX EXPO® show floor will be found at the IPC/NPL Cleaning and Contamination Testing Center
Industry News | 2011-09-14 12:04:43.0
The SMTA announced a session on QFN Assembly and Reliability will take place on Tuesday, October 18 during their annual conference, SMTA International, in Ft. Worth, Texas. Andrew Mawer of Freescale Semiconductor will chair the session and Viswam Puligandla, Ph.D., Nokia (Retired) will co-chair.
Parts & Supplies | SMT Equipment
CM402/CM602 solenoid valve 1, CM402/CM602 cutter solenoid valve N510029538AA / KXF0DR6AA00: VQZ1321Y-5MO-C6 (old) / VQZ1321Y-5MO1-C6 (new) 2, CM402/CM602 cutter solenoid valve N510028350AA: VV5QZ12-03-X132 3, CM402/CM602 valve head KXF0
Parts & Supplies | SMT Equipment
CM402/CM602 solenoid valve 1, CM402/CM602 cutter solenoid valve N510029538AA / KXF0DR6AA00: VQZ1321Y-5MO-C6 (old) / VQZ1321Y-5MO1-C6 (new) 2, CM402/CM602 cutter solenoid valve N510028350AA: VV5QZ12-03-X132 3, CM402/CM602 valve head KXF0
Technical Library | 2017-08-17 12:28:30.0
At SMT assembly, flux outgassing/drying is difficult for devices with poor venting channel, and resulted in insufficiently dried/burnt-off flux residue for no-clean process. Examples including: Large low stand-off components such as QFN, LGA Components covered under electromagnetic shield which has either no or few venting holes Components assembled within cavity of board Any other devices with small open space around solder joints
Technical Library | 2019-07-23 22:33:47.0
The Quad Flat Pack No Leads (QFN) style of leadless packaging [also known as a Land Grid Array (LGA)] is rapidly increasing in us e for wireless, automotive, telecom and many other areas becaus e of its low cost, low stand-off height and excellent thermal and electri cal properties. With the implementation of any new package type, there is always a learning curve for its use in design and processing as well as for the Process and Quality Engineers who have to get to grips with the challenges that these packages bring. Therefore, this paper will provide examples of the common process defects that can be seen with QFNs /LGAs when using optical and x-ray inspection as part of manufacturing quality control. Results of trials conducted on four PCB finishes and using vapour phase and convection reflow will be discussed.
Eliminate Body Stress with Versatile CF-8 GPD's CF-8 eliminates component body stress. Versatility is the key word for the CF-8. Simple tooling changes make short or long run production jobs quick and easy. Capabilities Meets exacting military s
Events Calendar | Mon Dec 02 00:00:00 EST 2019 - Mon Dec 02 00:00:00 EST 2019 | ,
Webinar: QFN/LGA Design, Assembly Process Issues & Reliability Failures
GPD Global | https://www.gpd-global.com/co_website/pdf/lead-former/CF8-Die-Catalog-800-000.pdf
) Dimple (.045/ .055 Protrusion) 800R-4000 .045/ .062 (A) Dimple (.045/ .055 Protrusion) 800R-4100 .045/ .062 (B) Dimple (.045/ .055 Protrusion) 800R-4200 .045/ .062 (C) Dimple (.045/ .055 Protrusion) 800R-4300 .045/ .062 (D) Dimple (.045/ .055 Protrusion) STAND OFF DIE SET (4 PIECE) 25 & 26 800E-1000 .015/ .030 Stand Off Die Set 800E-3000
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/trim-pad-under-component-feature_topic574_post1844.html
. However, you can still "Trim Pads" in the Footprint Expert if you want to. i.e.: The "Trim Pad" feature is still there, the component stand-off default value is set to zero "0
winsouce.jpg)
