Industry Directory | Consultant / Service Provider / Manufacturer
BBG will service your quick turn prototype, your small volume run as well as your full production requirement. We have plants dedicated to quick turn, small volume and prototype applications.
Industry Directory | Manufacturer
a pcb manufacturer in China specializing in multi-layer pcbs that meet RoHs, UL, IPC standards.
New Equipment | Assembly Services
Hitechpcb is an expert PCB manufacturing & assembly company that proudly supplies PCB assembly solutions to businesses of all sizes in China. Our industry-leading PCB assembly processes create PCBs of the highest quality. Our expert team is made up o
New Equipment | Assembly Services
Shenzhen YatSing PCB Co,.Ltd has been supplying printed circuit boards since 1981 ,as a leading manufacturer of Printed Circuit Boards in China,we provide excellent quality and lower price(specially lower price in single&double layer boards),and we
Electronics Forum | Tue Feb 06 13:24:31 EST 2007 | stepheniii
Good afternoon, > > You have to use lead paste > since none-RoHS components won�t withstand > elevated temperatures. Solder paste manufacturers > offer a lot of transitional pastes designed > specially for mixed process. Ask your paste > suppli
Electronics Forum | Mon Feb 06 10:12:30 EST 2006 | Yash Sutariya
Hi, I authored the presentation so I may be able to help you out with your Q's. 1. IPC is in draft stage for 4 new material specs. These are in the presentation. I would focus on IPC 4101/ 121 and /124. Match your current Tg requirement to the T
Used SMT Equipment | General Purpose Equipment
Apply The Bare Board Loader designed for automatically loading unpopulated boards at the beginning, or in the middle of a PCB assembly line. The bare boards are lifted one by one from the stack by vacuum and are gently lowered onto the belt se
Used SMT Equipment | General Purpose Equipment
Apply The PCB Inverter is used for inverting the PCBs to process the board at both sides without manaul handling. Features 1. PLC Control system. 2. FUJI button or touch screen control, easily operation. 3. By pass mode selectable. 4. Width
Industry News | 2018-01-08 18:17:43.0
Computrol today announced plans to exhibit in Booth #2247 at MD&M West, scheduled to take place Feb. 6-8, 2018 at the Anaheim Convention Center in Anaheim, CA. Computrol is equipped to serve the medtech industry, with ISO 9001-2008 certification, ISO 13485 specific to medical device quality systems, AS9100 specific to military and aerospace quality systems, IPC class II and III and J-STD certified as well as being ITAR registered and lead-free RoHS compliant.
Industry News | 2010-04-19 12:56:32.0
BANNOCKBURN, Ill., USA, - The world’s most widely used standards for printed boards and electronic assemblies were recently updated, providing new coverage for advanced technologies and processes as well as guidance on the new challenges that state-of-the-art can bring. To help industry members understand the ramifications of the changes to the standards that they and their customers depend on, IPC will host a number of full-day technology workshops, taught by the leaders of the task groups that worked on the standards’ revisions.
Parts & Supplies | Screen Printers
DEK Wiping mechanism magnet spring-G0332 (FLEXO) MORE DEK PARTS IN STOCKS DEK STEPPER MOTOR 140452-181245 DEK SPRING SHAFT KIT 145884 DEK SPRING G0332 DEK SOLVENT PUMP ASSY 191088 DEK SOLVENT 183668 DEK SOLENOID VALVE 165431 DEK SINGLE BOARD
Parts & Supplies | Screen Printers
DEK plywood cylinder (158921) Description: DEK plywood cylinder CYLINDER ^ PNEUMATIC ^ COMPACT ^ 12X10 Part NO.: 158921 MORE DEK PARTS IN STOCKS DEK STEPPER MOTOR 140452-181245 DEK SPRING SHAFT KIT 145884 DEK SPRING G0332 DEK SOLVENT PUMP
Technical Library | 2015-07-01 16:51:43.0
Aerospace and military companies continue to exercise RoHS exemptions and to intensively research the long term attachment reliability of RoHS compliant solders. Their products require higher vibration, drop/shock performance, and combined-environment reliability than the conventional SAC305 alloy provides. The NASA-DoD Lead-Free Electronics Project confirmed that pad cratering is one of the dominant failure modes that occur in various board level reliability tests, especially under dynamic loading. One possible route to improvement of the mechanical and thermo-mechanical properties of solder joints is the use of Pb-free solders with lower process temperatures. Lower temperatures help reduce the possibility of damaging the boards and components, and also may allow for the use of lower Tg board materials which are less prone to pad cratering defects. There are several Sn-Ag-Bi and Sn-Ag-Cu-Bi alloys which melt about 10°C lower than SAC305. The bismuth in these solder compositions not only reduces the melting temperature, but also improves thermo-mechanical behavior. An additional benefit of using Bi-containing solder alloys is the possibility to reduce the propensity to whisker growth
Technical Library | 2020-10-27 02:07:31.0
For companies that choose to take the Pb-free exemption under the European Union's RoHS Directive and continue to manufacture tin-lead (Sn-Pb) electronic products, there is a growing concern about the lack of Sn-Pb ball grid array (BGA) components. Many companies are compelled to use the Pb-free Sn-Ag-Cu (SAC) BGA components in a Sn-Pb process, for which the assembly process and solder joint reliability have not yet been fully characterized. A careful experimental investigation was undertaken to evaluate the reliability of solder joints of SAC BGA components formed using Sn-Pb solder paste. This evaluation specifically looked at the impact of package size, solder ball volume, printed circuit board (PCB) surface finish, time above liquidus and peak temperature on reliability. Four different BGA package sizes (ranging from 8 to 45 mm2) were selected with ball-to-ball pitch size ranging from 0.5mm to 1.27mm. Two different PCB finishes were used: electroless nickel immersion gold (ENIG) and organic solderability preservative (OSP) on copper. Four different profiles were developed with the maximum peak temperatures of 210oC and 215oC and time above liquidus ranging from 60 to 120 seconds using Sn-Pb paste. One profile was generated for a lead-free control. A total of 60 boards were assembled. Some of the boards were subjected to an as assembled analysis while others were subjected to an accelerated thermal cycling (ATC) test in the temperature range of -40oC to 125oC for a maximum of 3500 cycles in accordance with IPC 9701A standard. Weibull plots were created and failure analysis performed. Analysis of as-assembled solder joints revealed that for a time above liquidus of 120 seconds and below, the degree of mixing between the BGA SAC ball alloy and the Sn-Pb solder paste was less than 100 percent for packages with a ball pitch of 0.8mm or greater. Depending on package size, the peak reflow temperature was observed to have a significant impact on the solder joint microstructural homogeneity. The influence of reflow process parameters on solder joint reliability was clearly manifested in the Weibull plots. This paper provides a discussion of the impact of various profiles' characteristics on the extent of mixing between SAC and Sn-Pb solder alloys and the associated thermal cyclic fatigue performance.
Attractive price smt multi magazine loader with CE certificate APPLICATION: The Single magazine loader is used at the starting of the line for loading of PCB’s to the production line. The unit loads the production line automatically by pushing PCB’
CE certified Factory price Automatic pcb destacker bare bored loader used in smt production line APPLICATION The PCB Destacker is used for loading bare board onto the PCB assembly line. A mechanism separates the bottom PCB from the stacker and
Career Center | Los Angeles, California USA | Sales/Marketing
Quickshot XRF is looking to expand our distribution network for RoHS Testing needs. The primary area of interest is a sales organization based on the West Coast but consideration will be given to any sales company that has a dedicated focus on suppl
Career Center | Orange County, California USA | Quality Control
Job Description: Summary: Reporting to the COO/CTO the VP of Quality role will involve creating and/or augmenting the Quality system and programs to be a pro-active vs. a reactive structure. This will involve creating an overall quality vision, se
Career Center | , Minnesota USA | Engineering,Management,Production,Quality Control,Technical Support
Engineer with a diverse background in management, quality, computer and customer service. Experience includes optics, electrical, mechanical, physics, chemistry, process and systems engineering, implementing computers and computer applications for m
Career Center | , Minnesota | Engineering,Management,Production,Quality Control,Technical Support
Engineer with a diverse background in management, quality, computer and customer service. Experience includes optics, electrical, mechanical, physics, chemistry, process and systems engineering, implementing computers and computer applications for m
Modelling of Thermal Stresses in Printed Circuit Boards Modelling of Thermal Stresses in Printed Circuit Boards Results of FEM modelling of thermal stress analysis in printed circuit boards are given in the article. It is shown that thermal
found on functional RoHS-compliant hardware. The samp
Imagineering, Inc. | https://www.pcbnet.com/
. ITAR Registered AS9100D/ISO 9001:2015 Certified SAM Registered RoHS Compliant IPC Member Who we Are Since 1986, our focus on delivering the quality hasn’t changed
PCB Libraries, Inc. | http://www.pcblibraries.com/Products/FPX/Board-Station.asp
Denmark France Germany Italy Netherlands Sweden U.K. North America Canada USA Contact Us Footprint Expert User Guide Training & Webinars PCB Footprint Expert - for Board Station Features Flexibility IPC Software Specifications Customers Welcome to the next generation of PCB library development
