Technical Library | 2019-05-31 14:21:59.0
Microelectronics is the manufacture of systems built from extremely small electronic components. In today’s electronic world, devices must be portable, equipped with wireless technology and are driven by size, weight, power, and cost (SWaP-C). These system level drivers are crucial to all current and future electronic applications from personal computers and cellular telephones to military-fielded hardware, biomedical instrumentation, and space-flight hardware.
Technical Library | 2016-08-02 06:04:42.0
The next generation FUNDAS rest on one and only one motto (i.e.) technology up-gradation. For innovations in any corner of the world, a completely unique electronic solution is derived that accounts for fast trending modernization in the lifestyle of humans. With electronic design or manufacturing solution, the printed circuit boards are the groundwork for every electronic project. As the electronic control system and instruments are now applied in every predominant market across the globe, the use of PCB is predicted to have universal application in the global society. This article details you on the type of PCB’s used in the industrial sector, the application of PCB and innovations marked in the industrial sector with current steps taken by PCB manufacturers to provide unique solutions to the industrial sharks. See more: http://www.technotronix.us/pcbblog/printed-circuit-board-for-industrial-application-drives-a-wave-of-innovation/
Technical Library | 2016-08-02 06:10:56.0
As the technology has become a universal key to major developments, the marine and boat industry has shown elevated growth in recent time. The marine market circumscribes on the electronic and design solutions for every single innovation. All the developments in Marine sector has and are heading towards a notion of modernization and among these, printed circuit board is grounding the research and developments. How to increase the efficiency of the device? How to gain optimum fuel efficiency? Does the dual fuel concept become a buzz word for major innovations? These are the basic questions which are considered to bring new novelties in the market.
Technical Library | 2006-10-02 14:26:47.0
This paper addresses the assembly and reliability of 0.5 mm pitch leadless Chip Scale Packages (CSP) on .062" immersion Ag plated printed circuit boards (PCB) using Pb-free solder paste. Four different leadless CSP designs were studied and each was evaluated using multiple PCB attachment pad designs.
Technical Library | 2007-04-18 19:23:22.0
Recent investigations have revealed that Pb-free solder joints may be fragile, prone to premature interfacial failure particularly under shock loading, as initially formed or tend to become so under moderate thermal aging. Depending on the solder pad surface finish, different mechanisms are clearly involved, but none of the commonly used surface finishes appear to be consistently immune to embrittlement processes. This is of obvious concern for products facing relatively high operating temperatures for protracted times and/or mechanical shock or strong vibrations in service.
Technical Library | 2007-09-27 16:18:15.0
Considerable interest exists in the process known as the pinin- paste, or the Alternative Assembly and Reflow Technology (AART) process. The AART process allows for the simultaneous reflow of both odd-form and through hole devices as well as surface mount components. This process has several advantages over the typical mixed technology process sequence that includes wave soldering and/or hand soldering, often in addition to reflow soldering.
Technical Library | 2007-03-28 10:18:33.0
Legislation against the use of lead in electronics has been the driving force behind the use of lead-free solders, surface finishes, and component lead finishes. The major concern in using lead-free solders in the assembly and rework Chip Scale Packages (CSPs) is the relatively high temperatures that the components and the boards experience. Fine-pitch CSPs have very low standoff heights following assembly making inspection and rework of these components more difficult. One other concern pertinent to rework is the temperature of the neighboring components during rework. These issues, coupled with the limitations of rework equipment to handle lead-free reflow temperatures, make the task of reworking lead-free assemblies more challenging.
Technical Library | 2007-05-09 18:26:16.0
High Density Interconnect (HDI) technology is fast becoming the enabling technology for the next generation of small portable electronic communication devices. These methods employ many different dielectrics and via fabrication technologies. In this research, the effect of the proximity of microvias to Plated Through Holes (PTHs) and its effect on the reliability of the microvias was extensively evaluated. The reliability of microvia interconnect structures was evaluated using Liquid-To-Liquid Thermal Shock (LLTS) testing (-55oC to +125oC). Comprehensive failure analysis was performed on microvias fabricated using different via fabrication technologies.
Technical Library | 2007-06-27 15:43:06.0
Traditionally most flip chips were designed with large bumps on a coarse pitch. However, as the trend towards smaller, more compact assemblies continues the sizes of semiconductor packages are forced to stay in line. New designs are incorporating smaller bump diameters on increasingly aggressive pitches, and in many cases decreasing the total IO count. With fewer and smaller bumps to distribute the load of the placement force it is becoming increasingly vital for equipment manufacturers to meet the challenge in offering low force placement solutions. One such solution will be presented in the following discussion. Also presented will be ways to minimize the initial impact spike that flip chips experience upon placement.
Technical Library | 2007-08-09 12:23:10.0
Recent developments in No Flow-Fluxing Underfill (NFFUF) products have demonstrated their utility to enhance the reliability of flip chip assemblies with reduced processing steps over conventional capillary flow methods. This basic work considered processing conditions such as dispensed volume and placement force, speed and dwell time. Further evaluations of these new products on a variety of flip chip assembly configurations manufactured by various processes have been undertaken to provide further evidence of their suitability and potential in high volume electronic manufacturing. This paper summarizes the recent evaluations and discusses new studies of additional assembly configurations, which include higher input/output (l/O) counts up to full arrays in excess of 1200 l/Os.
