Shengyi Technology Earns UL Listing for FR-4 with RTI of 150°C


Reading time ( words)

For over 50 years, printed circuit applications using FR-4 as a base material were limited to 130°C continuous maximum operating temperature (MOT). This was more a definition limit set by UL and ANSI rather than a lack of thermal performance by the FR-4 products. Recently, UL changed the definition to allow FR-4 to be used at temperatures up to 150°C if the long term thermal aging (LTTA) data passed the electrical and mechanical requirements.  

Shengyi is the first base material supplier world-wide to have an FR-4 product listed with an electrical and mechanical Relative Thermal Index (RTI) of 150°C. The product, S1170G, is a halogen-free epoxy system with a Tg of 180°C and a Td of 390°C designed for lead-free processing. The excellent CAF resistance allows S1170G to be used for high reliability applications including automotive, smartphone, and consumer electronics

The product is listed in Shengyi’s UL File # E109769 as an ANSI Grade FR-15.1. FR-15.1 indicates that it is a halogen-free FR-4 product with RTI of 150°C.

Board designers can feel more comfortable knowing that S1170G can be used at higher   temperatures than for traditional FR-4s. Other current FR-4 products will also be listed as

FR-15 in the Shengyi UL file as customer requirements dictate.

About Shengyi Technology Company Ltd.

Based in Dongguan since 1985, Shengyi Technology Co., Ltd. (SYTECH) is a world leader in the development and production of laminates and prepregs. The company maintains a high commitment to on-going R&D efforts and provides a complete portfolio of products ranging from composites to high reliability, thermal management, HSD and RF/PTFE laminate materials. Shengyi maintains a state-of-the-art manufacturing facility in Dongguan where it manufactures FR4, CEM-1, CEM-3 and a variety of Prepregs. In addition, the company maintains laminate and prepreg manufacturing operations in Suzhou, Shaanxi and Changshu. Shengyi’s products are used in single-sided, double-sided and multilayer printed circuit boards and the company’s global customer base spans a broad spectrum of markets including mobile phones, automotive, telecommunication equipment, computers and higher-level electrical products. For more information can be found here

Share

Print


Suggested Items

EIPC Technical Snapshot: Supply Chain and Material Price Pressures

04/26/2021 | Pete Starkey, I-Connect007
EIPC’s seventh Technical Snapshot webinar on April 14 was timely and appropriate. In the context of current supply chain issues and material price pressures facing the PCB industry, particularly in Europe, the EIPC team brought together an outstanding group of experts—each a leading authority in his field—to analyse and comment upon the areas of concern and to respond to questions raised by a capacity audience. As Alun Morgan said, “If you don’t use the European supply chain, you won’t have it anymore!”

Time, Space, Structure, and Model Analysis of CCL Price Increase

04/19/2021 | Hu Yang, Zhongtai Securities Research Center
According to the CCL Association, copper foil accounts for the largest proportion of raw materials (traditional CCL uses epoxy resin, glass fiber cloth and copper as raw materials). Copper foil in thin plate accounts for about 30% of the overall cost; in thick plate copper accounts for 50%. In CCL production, using Shengyi Technology and Chaohua Technology as examples, the cost of raw materials accounts for about 88% of the total cost, with labor accounting for about 4%. Other costs such as equipment depreciation account for about 8%.

Top Five Takeaways from IPC APEX EXPO 2021

04/15/2021 | Chris Mitchell, IPC VP, Global Government Relations
IPC APEX EXPO 2021, which went all virtual this year, exemplified how the electronics industry has responded to the COVID-19 global pandemic: with resiliency, agility, and an unwavering commitment to build electronics better. APEX EXPO featured great content and robust discussions on topics of critical importance to the global electronics industry. From my vantage point leading IPC’s government relations programs, here are my top five takeaways from this year’s event.



Copyright © 2021 I-Connect007. All rights reserved.