Industry Directory | Manufacturer
We manufacture and market stencil rolls for the PCBA industry. The cleaning material is ideal for cleaning stencils with fine pitch apertures. It prevents smearing, solder balls and other problems on the PC boards. Our stencil product is of high g
Industry Directory | Consultant / Service Provider / Manufacturer
One of the major suppliers of stencils and pallets to the SMT industry. Stentech offers Electroformed and laser cut stencils, pallets and fixtures.
New Equipment | Solder Paste Stencils
SMT Foil Stencils are laser cut solder paste stencils designed to work on their own for hand printing or with stencil tensioning systems. These laser cut stencils do not need to be permanently glued in a frame. These so-called frameless stencils are
New Equipment | Solder Paste Stencils
SMT Framed Stencils are laser cut solder paste stencils designed to work on SMT printing machines. These laser cut stencils are permanently glued into a frame. These framed stencils are are designed for highly repeatable continuous operation in volum
Electronics Forum | Thu Jun 16 08:31:15 EDT 2005 | jh0n!
The most part I have the most difficulty with is a 16mil QFN. We found that reducing stencil thickness to 4mil, and reducing aperatures for the IC by 20%, and setting local fiducials to the IC helped immensely. We used to get 75% or more bridged ou
Electronics Forum | Thu May 18 10:20:55 EDT 2006 | slthomas
Russ asks good questions and I think Chunks pretty much nailed it. Aspect ratio (aperture width/stencil thickness) s/b 1.2 minimum (I like 1.5 if I can get it). If your aperture width = lead width (.008"), yours is 1. Tough to get consistent paste r
Industry News | 2016-02-27 20:41:52.0
BEST Inc. instructors will be conducting 2 training sessions this year at the APEX Expo 2016 - Advanced Rework: Hands-on BGA Reballing, Lead-Free Devices, and Fine-Pitch Parts, and the 2nd session - Stencil Printing: Consistent Print Volumes for SMT Rework.
Industry News | 2009-03-02 00:28:54.0
DEK has announced the launch of its VectorGuard� Platinum stencil technology. Now available for DEK customers in Asia, Europe and the Americas, the new technology provides semiconductor manufacturers with an ideal solution for a diverse range of next-generation challenges.
Technical Library | 2023-07-25 16:50:02.0
Some of the new handheld communication devices offer real challenges to the paste printing process. Normally, there are very small devices like 01005 chip components as well as 0.3 mm pitch uBGA along with other devices that require higher deposits of solder paste. Surface mount connectors or RF shields with coplanarity issues fall into this category. Aperture sizes for the small devices require a stencil thickness in the 50 to 75 um (2-3 mils) range for effective paste transfer whereas the RF shield and SMT connector would like at least 150 um (6 mils) paste height. Spacing is too small to use normal step stencils. This paper will explore a different type of step stencil for this application; a "Two-Print Stencil Process" step stencil. Here is a brief description of a "Two-Print Stencil Process". A 50 to 75 um (2-3 mils) stencil is used to print solder paste for the 01005, 0.3 mm pitch uBGA and other fine pitch components. While this paste is still wet a second in-line stencil printer is used to print all other components using a second thicker stencil. This second stencil has relief pockets on the contact side of the stencil any paste was printed with the first stencil. Design guidelines for minimum keep-out distances between the relief step, the fine pitch apertures, and the RF Shields apertures as well relief pocket height clearance of the paste printed by the first print stencil will be provided.
Technical Library | 2008-01-16 18:25:55.0
The consumer's interest for smaller, lighter and higher performance electronics products has increased the use of ultra fine pitch packages, such as Flip Chips and Chip Scale Packages, in printed circuit board (PCB) assembly. The assembly processes for these ultra fine pitch packages are extremely complex and each step in the assembly process influences the assembly yield and reliability.
This is video shows how to print a PCB using a prototype foil only stencil. The SMT prototype stencil (www.soldertools.net) is made from a high nickel content material able to offer repeatable high precision apertures. The steps of alignment, printin
This is video shows how to print a PCB using a prototype foil only stencil. The SMT prototype stencil (www.soldertools.net) is made from a high nickel content material able to offer repeatable high precision apertures. The steps of alignment, printin
Events Calendar | Mon Mar 18 00:00:00 EDT 2019 - Mon Mar 18 00:00:00 EDT 2019 | ,
Webinar: Stencil Design for Solder Paste, In Process Inspection & Process Defects
Events Calendar | Wed May 31 00:00:00 EDT 2023 - Wed May 31 00:00:00 EDT 2023 | Holtsville, New York USA
Long Island Chapter Meeting: Fine Feature Paste Printing, Stencil Design and Solder Technology
Career Center | , | Engineering,Production
Project Management, SMT Process Engineering
Career Center | Bangalore, India | Engineering,Maintenance,Production,Technical Support
SMT Stencil designing & Knowledge of full SMT process software known CAD/CAM -circuit CAM Pro 7.3,GC Power station, GCCAM Edit,Auto CAD, Fault finding of Electronic Boards & Servicing electronic machines.
Process Development And Characterization Of The Stencil Printing Process For Small Apertures Process Development And Characterization Of The Stencil Printing Process For Small Apertures. The consumers interest for smaller, lighter and higher
SMTnet Express, December 31, 2015, Subscribers: 23,946, Members: Companies: 14,865, Users: 39,660 Study on Solder Joint Reliability of Fine Pitch CSP Yong Hill Liang, Hank Mao, YongGang Yan, Jindong (King) Lee; AEG, Flex (Flextronics International
