Industry Directory | Manufacturer
Buyers of Scrap Materials and Surplus Machinery, Equipment and Inventories Precious Metal Refining Warehouse Liquidation PCB & Electronic Scrap Recycling Purchasing of Used Surplus Semiconductor
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
New Equipment | Solder Paste Stencils
Simplify and Speed Up QFN and LGA device rework. StencilMate™ leadless device rework stencils make the process of reworking leadless devices such as QFNs and LGAs simple and fast. These adhesive-backed poyimide stencils are placed on to the bottom o
Electronics Forum | Fri Feb 18 23:21:00 EST 2005 | JSS
Hi Everybody, Mostly customer asked about the solder paste height checking after printing process.Is it compulsory to check the height if we are using stainless steel stencil and metal blades in fully automatic printer.Any technical answer to their
Electronics Forum | Mon Feb 21 02:02:54 EST 2005 | JSS
First of all THANKS for thr reply. I totally agree with u that paste dried,stencil aperture clogged like probs comes during the production but we hv a visual inspection stage (with 5X illuminated lamp)after printing process and before inserting the
Used SMT Equipment | AOI / Automated Optical Inspection
BF-Frontier is used in the inspection of large-size printed circuit boards. In this device, the unique control sequence of software and hardware, accelerated scanning mode and stable optical illumination system can allow BF-Frontier to easily complet
Used SMT Equipment | AOI / Automated Optical Inspection
YAMAHA AOI YSi-V MACHINE KLT-000 1. Model: Yamaha ysi-v 2. Target substrate: l610 x w560 (maximum) ~ l50 x w50 (minimum) & supports l750mm super long substrate (optional) 3. Resolution: visible light (red/green/blue) & infrared (infra-
Industry News | 2018-09-06 12:12:07.0
GPD Global offers the ideal tabletop robots (Catalina Series) for precision dispensing.
Parts & Supplies | SPI / Solder Paste Inspection
Quick programming, friendly programming interface Multiple measurement methods True one-button measurement Eight-way motion button, one-click focus Adjustable scanning pitch Solder paste 3D simulation function Powerful SPC function MARK
Parts & Supplies | Soldering Equipment/Fluxes
3D Solder Paste Inspection Machine Features : Easy to use by fully motorize X-Y scan mechanism. Easy to program by Gerber image navigator Easy to repeat the same job by loading the saved program User-friendly color image live view operation Ea
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 | 2023-07-25 16:25:56.0
This paper address two significant applications of stencils in advance packaging field: 1. Ultra-Thin stencils for miniature component (0201m) assembly; 2. Deep Cavity stencils for embedded (open cavity) packaging. As the world of electronics continues to evolve with focus on smaller, lighter, faster, and feature-enhanced high- performing electronic products, so are the requirement for complex stencils to assemble such components. These stencil thicknesses start from less than 25um with apertures as small as 60um (or less). Step stencils are used when varying stencil thicknesses are required to print into cavities or on elevated surfaces or to provide relief for certain features on a board. In the early days of SMT assembly, step stencils were used to reduce the stencil thickness for 25 mil pitch leaded device apertures. Thick metal stencils that have both relief-etch pockets and reservoir step pockets are very useful for paste reservoir printing. Electroform Step-Up Stencils for ceramic BGA's and RF Shields are a good solution to achieve additional solder paste height on the pads of these components as well as providing exceptional paste transfer for smaller components like uBGAs and 0201s. As the components are getting smaller, for example 0201m, or as the available real estate for component placement on a board is getting smaller – finer is the aperture size and the pitch on the stencils. Aggressive distances from step wall to aperture are also required. Ultra-thin stencils with thicknesses in the order of 15um-40um with steps of 15um are used to obtain desired print volumes. Stencils with thickness to this order can be potential tools even to print for RDLs in the package.
https://www.ascen.ltd/Products/Solder_paste_printer/513.html full auto PCB screen printer and SMT solder paste printing machine with Image and optical system,It is a very accurate fully automatic SMT stencil printer.automatic PCB screen printer main
https://www.ascen.ltd/Products/Solder_paste_printer/513.html full auto PCB screen printer and SMT solder paste printing machine with Image and optical system,It is a very accurate fully automatic SMT stencil printer.automatic PCB screen printer main
Training Courses | ONLINE | | PCB Assembly Courses
The PCB assembly courses provide knowledge of different processes and equipment used in TH and SMT assembly of printed circuit boards.
Career Center | Fremont, California USA | Production,Quality Control
Local industry leading EMS Company seeking SMT operators. Will be doing SMT line Change overs, SMT machine operation for solder printing, placement, reflow. Solder paste height measurement and record. Solder printing quality check after solder paste
Career Center | Durham, North Carolina USA | Engineering,Production,Quality Control
Immediate position openings available in Durham, NC for SMT Technicians. Selected candidates will work in a Surface Mount Technology environment with Solder Screen Printers, Pick & Place equipment, Solder Paste Inspection, Reflow Oven and Automated
Career Center | Muzzaffarnagar, India | Production
Complete programming of Pick & Place as per BOM. Working with both low & high Profile solder Paste, and Glue. Accurate Placement of all SMT Component like Chip, SOT, SOD, QFP, Tantalum Capacitor & etc. Familiar with the critical problem in process
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.
SMT Express, Volume 3, Issue No. 5 - from SMTnet.com Volume 3, Issue No. 5 Thursday, May 17, 2001 Featured Article Return to Front Page Solder Paste Measurement: A Yield Improvement Strategy That Helps Improve Profits by Mike Riddle , ASC
KingFei SMT Tech | https://www.smtspare-parts.com/quality-11936650-220v-50-60hz-solder-paste-inspection-table-top-3d-spi-7500-vision-ce
; 5, using 3-axis automatic movement, focusing, automatic compensation to correct the warpage deformation of the substrate, to obtain accurate solder paste height
ASCEN Technology | https://www.ascen.ltd/Products/Automatic_SMT_equipment/PCB_marking_machi/171.html
. About the pcb solder paste printer more application in the SMT assembly line, Please check the technical solution detail in the” How to build your SMT electronic intelligent production line ” . Features
