Industry News | 2009-02-21 17:56:00.0
BANNOCKBURN, Ill. and ARLINGTON, Va., USA, February 19, 2009 � IPC � Meeting the requirements of RoHS (restriction of the use of certain hazardous substances in electrical and electronic equipment) compliance and successfully implementing lead-free electronics assembly processes is an ongoing challenge for the electronic interconnect industry. To help companies work toward their compliance goals, IPC and JEDEC present �Transitioning to Lead Free � Strategies for Implementation,� a three-day conference to be held March 3�5, 2009 in Santa Clara, Calif.
New Equipment | Rework & Repair Equipment
Ultimate Performance, BGA Rework Station for small-large PCBs up to 24"/620mm The PDR E6 XL BGA Rework Station is made of only the finest materials and components for optimum precision and rework excellence. PDR's E6 SMD Rework Station is PDR's larg
Technical Library | 2015-02-27 16:46:30.0
During the last period of newly assembled electrical devices (pcbs), new component types like LGA and QFN were also qualified as well as smaller passive components with reliability requirements based on the automotive and industrial industry. In the narrow gaps under components, residues can accumulate more by the capillary forces. This is not that much a surface resistance than an interface issue. Also that the flux residues under such types of components creates interaction with the solder resists from the pcb, as well as the component body was not completely described in the standard SIR measurement. On the other hand also, electrical influence with higher voltage creates new terms and conditions, in particular the combination of power and logic in such devices. The standard SIR measurement cannot analyze those combinations.The paper will discuss the requirements for a measurement process, and will give results. The influences of the pcb and component quality will also be discussed. Furthermore it will describe requirements for nc solder paste to increase the chemical/thermical/electrical reliability for whole devices
Industry News | 2018-10-18 11:08:03.0
Different Techniques for Plating
Technical Library | 2023-08-04 15:38:36.0
The MicroLeadFrame® (MLF®)/Quad Flat No-Lead (QFN) packaging solution is extremely popular in the semiconductor industry. It is used in applications ranging from consumer electronics and communications to those requiring high reliability performance, such as the automotive industry. The wide acceptance of this packaging design is primarily due to its flexible form factors, size, scalability and thermal dissipation capabilities. The adaptation and acceptance of MLF/QFN packages in automotive high reliability applications has led to the development of materials and processes that have extended its capabilities to meet the performance and quality requirements. One of process developments that is enabling the success of the MLF/QFN within the automotive industry has been the innovation of side wettable flanks that provide the capability to inspect the package lead to printed circuit board (PCB) interfaces for reliable solder joints. Traditionally, through-board X-ray was the accepted method for detecting reliable solder joints for leadless packages. However, as PBC layer counts and routing complexities have increased, this method to detect well-formed solder fillets has proven ineffective and incapable of meeting the inspection requirements. To support increased reliability and more accurate inspection of the leadless package solder joints, processes to form side-wettable flanks have been developed. These processes enable the formation of solder fillets that are detectable using state-of-the-art automated optical inspection (AOI) equipment, providing increased throughput for the surface mount technology (SMT) processes and improved quality as well.
Technical Library | 2015-06-11 21:20:29.0
The use of bottom terminated components (BTC) has become widespread, specifically the use of Quad Flat No-lead (QFN) packages. The small outline and low height of this package type, improved electrical and thermal performance relative to older packaging technology, and low cost make the QFN/BTC attractive for many applications.Over the past 15 years, the implementation of the QFN/BTC package has garnered a great amount of attention due to the assembly and inspection process challenges associated with the package. The difference in solder application parameters between the center pad and the perimeter pads complicates stencil design, and must be given special attention to balance the dissimilar requirements
Industry News | 2010-12-10 12:27:00.0
Ironwood Electronics recently introduced a new spring pin socket addressing precise resistance measurement need for testing power management devices - SSK-QFN-7000.
Industry News | 2008-11-18 17:22:43.0
Moulded Interconnected Device (MID) applications are the current focus of the automotive and medical device industries. In such products, circuits are directly applied onto the surface of injection moulded plastic parts or are integrated as part of products. In a 3D-MID, SMD components typically are on multiple levels. Essemtec has developed a system that can dispense and place in three dimensions and is capable of placing 3D-MID technology.
Industry News | 2017-01-17 15:39:40.0
STI Electronics today announced that it has been selected to receive the “Best of Conference” award for a paper presented during SMTA International in September. The paper entitled “BTC/QFN Test Board Design Considerations and Method for Qualifying Soldering Materials and Cleaning Processes” was co-authored by Dr. Mike Bixenman of KYZEN, and Mark McMeen and Jason Tynes from STI Electronics.
Dinghua Technology-- the leading manufacturer of BGA rework station, Automatic screw locking machine, Automatic soldering station and non-standard equipment. For more details, please just contact John, WhatsApp/Wechat:+86 1576811 4827 , Skype: si
