Sandwich-Layered Dielectric Film with Intrinsically Excellent Adhesion, Low Dielectric Constant, and Ultralow Dielectric Loss for a High-Frequency Flexible Printed Circuit

2021 ◽  
Author(s):  
Yang Zhang ◽  
Zhiyu Liu ◽  
Xianlong Zhang ◽  
Shaoyun Guo
Keyword(s):  
Dielectric Constant ◽  
Dielectric Loss ◽  
High Frequency ◽  
Dielectric Film ◽  
Low Dielectric Constant ◽  
Printed Circuit ◽  
Low Dielectric ◽  
Flexible Printed Circuit ◽  
Excellent Adhesion ◽  
Layered Dielectric

Photosensitive Polyimide having low loss tangent for RF application

2018 ◽  
Vol 2018 (1) ◽  
pp. 000476-000482 ◽  
Author(s):  
Masao Tomikawa ◽  
Hitoshi Araki ◽  
Yohei Kiuchi ◽  
Akira Shimada
Keyword(s):  
Molecular Structure ◽  
Dielectric Constant ◽  
Dielectric Properties ◽  
Dielectric Loss ◽  
High Frequency ◽  
Low Dielectric Constant ◽  
Low Loss ◽  
Elongation At Break ◽  
Low Dielectric ◽  
The Poor

Abstract Progress of 5G telecommunication and mm radar for autopilot, high frequency operation is required. Insulator materials having low loss at high frequency is desired for the applications. We designed the low dielectric constant, and low dielectric loss materials examined molecular structure of the polyimide and found that permittivity 2.6 at 20GHz, dielectric loss 0.002. Furthermore, in consideration of mechanical properties such as the toughness and adhesion to copper from a point of practical use. Dielectric properties largely turned worse when giving photosensitivity. To overcome the poor dielectric properties, we designed the photosensitive system. After all, we successfully obtained 3.5 of dielectric constant and 0.004 of dielectric loss, and 100% of elongation at break. In addition, we offered a B stage sheet as well as varnish. These materials are applicable to re-distribution layer of FO-WLP, Interposer and other RF applications for microelectronics.

An effective strategy for the preparation of intrinsic low-k and ultralow-loss dielectric polysiloxanes at high frequency by introducing trifluoromethyl groups into the polymers

2020 ◽  
Vol 11 (38) ◽  
pp. 6163-6170
Author(s):  
Fengping Liu ◽  
Xingrong Chen ◽  
Linxuan Fang ◽  
Jing Sun ◽  
Qiang Fang
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
Dielectric Loss ◽  
High Frequency ◽  
Low Dielectric Constant ◽  
Effective Strategy ◽  
Low Dielectric ◽  
5 Ghz ◽  
Low K ◽  
Trifluoromethyl Groups

Two new CF3-containing polysiloxanes with low dielectric constant (Dk) and dielectric loss (Df ) at a high frequency of 5 GHz were reported. The sample with two −CF3 groups exhibits better dielectric properties with Dk of 2.53 and ultralow Df of 1.66 × 10−3.

scholarly journals Materials with low dielectric constant and loss and good thermal properties prepared by introducing perfluorononenyl pendant groups onto poly(ether ether ketone)

RSC Advances ◽  
2018 ◽  
Vol 8 (14) ◽  
pp. 7753-7760 ◽  
Author(s):  
Handong Sun ◽  
Yunxia Lv ◽  
Chongyang Zhang ◽  
Xiaodan Zuo ◽  
Mengzhu Li ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Thermal Properties ◽  
Dielectric Loss ◽  
Polymer Chain ◽  
Low Dielectric Constant ◽  
Low Dielectric ◽  
Dielectric Constant And Loss ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone

Introducing long carbon–fluorine bonds into the polymer chain produced comb-shaped PEEK possessing a low dielectric constant (2.73) and low dielectric loss (3.00 × 10−3).

Poly(Arylene Ethers) as Low Dielectric Constant Materials for ULSI Interconnect Applications

1996 ◽  
Vol 443 ◽  
Author(s):  
Raymond N. Vrtis ◽  
Kelly A. Heap ◽  
William F. Burgoyne ◽  
Lloyd M. Robeson
Keyword(s):  
Thermal Stability ◽  
Dielectric Constant ◽  
Moisture Absorption ◽  
Dielectric Material ◽  
Mechanical Analysis ◽  
Low Dielectric Constant ◽  
Low Dielectric ◽  
Arylene Ether ◽  
Low Dielectric Constant Materials ◽  
Excellent Adhesion

AbstractPoly(arylene ethers)s are low dielectric constant organic spin on materials. PAE-2, which is a non-fluorinated poly(arylene ether), exhibits a dielectric constant below 3.0, thermal stability greater than 425 °C as well as excellent adhesion to Si, SiO2, and Al. These are the major atributes which makes it a very attractive candidate for integration as an interlevel or inter-metal dielectric material (ILD). Material properties including dielectric constant, thermal stability, moisture absorption, and mechanical analysis will be discussed.

Low Loss LTCC Ag System for 5G Applications

2021 ◽  
Vol 2021 (HiTEC) ◽  
pp. 000105-000111
Author(s):  
Ellen Tormey ◽  
Chao Ma ◽  
John Maloney ◽  
Bradford Smith ◽  
Sid Sridharan ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
High Frequency ◽  
Lower Cost ◽  
Low Dielectric Constant ◽  
Low Latency ◽  
Frequency Range ◽  
Low Loss ◽  
Green Tape ◽  
Low Dielectric ◽  
Wireless Telecommunications

Abstract Low dielectric constant/low loss LTCC materials have drawn much attention with the emergence of 5G wireless telecommunications. LTCC offers unique properties in the millimeter wave frequency range. The low dielectric constant and dielectric loss enable low latency devices with enhanced performance. To meet the market demands of higher performance and lower cost, Ferro has developed a new M7 LTCC/Ag cofireable system suitable for antenna in 5G and other high frequency applications. M7 LTCC ceramic green tape and cofireable Ag conductors have been developed and tested. Properties of the LTCC/Ag system are included herein including high frequency dielectric properties.

Influence of MgO Content on Microstructure and Dielectric Properties in (BaSr)TiO3 Ceramics

2007 ◽  
Vol 280-283 ◽  
pp. 85-88
Author(s):  
Lin Hu ◽  
He Ping Zhou ◽  
Hao Xue ◽  
Chun Lai Xu
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
Dielectric Loss ◽  
Low Dielectric Constant ◽  
Microwave Technology ◽  
Phased Array Antennas ◽  
Strontium Titanium Oxide ◽  
Low Dielectric ◽  
Barium Strontium ◽  
High Dielectric

Barium strontium titanium oxide (BSTO) has great advantages and potentiality for the application of microwave technology. In order to be used in phased array antennas, high dielectric tunability, relatively low dielectric constant and low dielectric loss are required. In this paper, MgO was mixed into BSTO and the microstructure and dielectric properties of MgO-mixed BSTO bulk ceramics were investigated. The mole ratio of Ba and Sr was rather fixed to 5:5 in this study. It is observed that a small amount of MgO (5 wt%) has gone beyond the solubility limits of Mg in BSTO. The dielectric constant and dielectric loss of BSTO ceramics decreased with the increase of the content of MgO mixed. However, the tunability of MgO-mixed BSTO ceramics decreased at the same time. 20wt% MgO-mixed BSTO ceramics exhibits preferable dielectric properties with acceptable tunability.

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