Technical Library | 2015-05-21 18:46:31.0
In this work the reliability of an embedded planar capacitor laminate under temperature and voltage stress is investigated. The capacitor laminate consisted of an epoxy-BaTiO3 composite sandwiched between two layers of copper. The test vehicle with the embedded capacitors was subjected to a temperature of 125oC and a voltage bias of 200 V for 1000 hours. Capacitance, dissipation factor, and insulation resistance were monitored in-situ. Failed capacitors exhibited a sharp drop in insulation resistance, indicating avalanche breakdown. The decrease in the capacitance after 1000 hours was no more than 8% for any of the devices monitored. The decrease in the capacitance was attributed to delamination in the embedded capacitor laminate and an increase in the spacing between the copper layers.
Technical Library | 2016-06-16 15:29:31.0
Embedding components within the PC board structure is not a new concept. Until recently, however, most embedded component PC board applications adapted only passive elements. The early component forming processes relied on resistive inks and films to enable embedding of resistor and capacitors elements. Although these forming methods remain viable, many companies are choosing to place very thin discrete passive components and semiconductor die elements within the PC board layering structure. In addition to improving the products performance, companies have found that by reducing the component population on the PC board's surface, board level assembly is less complex and the PC board can be made smaller, The smaller substrate, even when more complex, often results in lower cost. Although size and cost reductions are significant attributes, the closer coupling of key elements can also contribute to improving functional performance.This paper focuses on six basic embedded component structure designs described in IPC-7092.
Technical Library | 2014-01-09 16:40:33.0
Embedded Passive Technology is a viable technology that has been reliably used in the defense and aerospace industry for over 20 years. Embedded Passive (Resistors and Capacitors) Technology have a great potential for high frequency and high density applications. It also provides better signal performance, reduced parasitic and cross talk. This paper summarizes the selection of resistor embedded materials, evaluations of resistive material (Phase 1) and duplication of a complex digital design (Phase 2). Phase 1 –resistive materials (Foil 25Ω/sq NiCr and 1kΩ/sq CrSiO) and resistive-Ply materials (25Ω/sq and 250Ω/sq NiP) were chosen for evaluation.
#Module Thyristor Type:Snubberless Peak Repetitive Off-State Voltage Vdrm:600V On State RMS Current, IT(rms):12A Gate Trigger Current (QI), Igt:35mA Gate Trigger Current Max, Igt:35mA - Global Electronic Components Distributor Supply of electronic
Industry News | 2018-09-06 15:18:14.0
Although many High Q capacitors are available on the market, performance can vary widely depending on design and quality of manufacturing
Industry News | 2010-04-12 15:30:49.0
IPC APEX Expo Conference and Exhibition, Las Vegas – Design engineers in the electronics industry who are seeking ways to improve power integrity and reduce electromagnetic interference (EMI) while meeting halogen-free requirements now have a new solution to meet their needs. The 3M Electronic Solutions Division now offers halogen-free* versions of its Embedded Capacitance Material (ECM).
New Equipment | Assembly Services
Layers 2-64L Plate Thiickness 0.6-10mm Minimum mechanical aperture 0.2mm Minimum laser aperture 4mil HDI Type 1+n+1、2+n+2、3+n+3 Minimum line width & spacing 4/4mil
New Equipment | Assembly Services
Layers 2-64L Plate Thiickness 0.6-10mm Minimum mechanical aperture 0.2mm Minimum laser aperture 4mil HDI Type 1+n+1、2+n+2、3+n+3 Minimum line width & spacing 4/4mil
New Equipment | Assembly Services
Layers 2-64L Plate Thiickness 0.6-10mm Minimum mechanical aperture 0.2mm Minimum laser aperture 4mil HDI Type 1+n+1、2+n+2、3+n+3 Minimum line width & spacing 4/4mil
Oak-Mitsui has developed a novel thin substrate, FaradFlex�, which is the next generation of Buried Capacitance material. Buried Capacitance utilizes the technology of putting a capacitor plane inside the PCB to reduce the overall impedance of the po
