New Equipment | Board Handling - Pallets,Carriers,Fixtures
Blessed with a team of dexterous professionals, our organization counted as leading Exporter, Manufacturer & Supplier of Anti-Static ESD POM Acetal Delring Sheet in Shenzhen, Guangdong, China. Energetic offers copolymer grade of POM Rod, Sheet. is
New Equipment | Board Handling - Pallets,Carriers,Fixtures
Backed by rich industry experiences, we are leading Exporter, Manufacturer & Supplier of ESD Anti-Static Phenolic Bakelite Sheet in Shenzhen, Guangdong, China. Phenolics are a uniformly dense and structurally strong material that will not soften appr
Electronics Forum | Wed Dec 13 13:42:57 EST 2000 | Mike Ihm
The dielectic absorption characteristic of printed circuit board materials is usually not listed on the manufacturers spec. sheets. Can anyone point me in a direction to help determine which laminate materials might exhibit better dielectric absorpt
Electronics Forum | Wed Dec 13 20:42:57 EST 2000 | Dave F
Material Dk @ 1GHz tan d @ 1GHz Difunctional 4.40 0.020 Multifunctional 4.43 0.018 Polyimide 4.06 0.006 Cyanate ester 3.65 0.005 Bismaleimide triazine 2.94 0.011 PPO-epoxy 3.85 0.012 PTFE-glass 2.60 0.001 PTFE-mat-CE 2.79 0.003 PTFE-ceramic 4.06 0.00
Used SMT Equipment | In-Circuit Testers
Megger MIT510-2 This item is to become discontinued on May 31, 2013 and replaced with the Megger MIT515 Megger Model# 1000-372 Catalog # MIT510/2 - 5 and 10-kV Insulation Resistance Testers Line supply or battery operated Digital/an
Used SMT Equipment | In-Circuit Testers
Megger MIT510-2 This item is to become discontinued on May 31, 2013 and replaced with the Megger MIT515 Megger Model# 1000-372 Catalog # MIT510/2 - 5 and 10-kV Insulation Resistance Testers Line supply or battery operated Digital/an
Industry News | 2003-06-24 08:14:51.0
R/flex� 3850 laminate is produced in a range of copper and LCP thicknesses, just as the single-clad laminate, and is available in standard panel formats.
Industry News | 2018-12-08 03:29:29.0
SMT Dictionary – Surface Mount Technology Acronym and Abbreviation
Technical Library | 2012-02-16 16:53:16.0
Channel simulations are only as accurate as the models used to develop them. While we have seen much effort placed on printed circuit board (PCB) materials (copper finish, dielectric moisture absorption), other elements within the channel have been largel
Technical Library | 2018-04-11 22:18:05.0
Millimeter-wave (mmWave) frequency applications are becoming more common. There are applications utilizing PCB technology at 60 GHz, 77 GHz and many other mmWave frequencies. When designing a PCB for mmWave frequency, the properties of the circuit materials need to be considered since they can be critical to the success of the application. Understanding the properties of circuit materials at these frequencies is very important.This paper will give an overview of which circuit material properties are important to mmWave frequency applications using PCBs. There will be data supplied which demonstrates why these properties are essential to the circuit material selection for mmWave applications. Some properties discussed will be dielectric constant (Dk) control, dissipation factor, moisture absorption, thickness control and TCDk (Temperature Coefficient of Dk). Measured comparisons will be shown for insertion loss and Dk versus frequency for different types of circuit materials up to 110 GHz. As part of the test data, the impact on circuit performance due to TCDk and moisture absorption will be shown at mmWave frequencies.
circuit board (PCB) materials (copper finish, dielectric
Imagineering, Inc. | https://www.pcbnet.com/blog/fr-4-vs-rogers-material-for-manufacturing-rf-pcbs/
. Generally, high temperature PCBs should aim for a continuous thermal load that is 25°C below the glass transition temperature. Moisture Absorption Printed circuit boards are sensitive to changes in atmospheric humidity, and RF PCBs are no exception
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