Novel Low-transmission-loss Multilayer Materials for PWBs Applied to High GHz Bands
With the evolution of information technology, the frequency applied to electronic devices has become higher to handle the growing volumes of data. Signals on printed wiring boards (PWBs) used in these applications have come to adapt higher frequencies. At higher frequencies, signal will attenuate more easily. The important problem in high-frequency circuits is the way to reduce the transmission loss and the delay of signal propagation on PWBs.We have developed novel low-transmission-loss multilayer material which is suitable for PWBs applied to high GHz bands. The laminate made with new resins has good dielectric properties and shows the same level of low dissipation factor as the PTFE laminate. Moreover, this has high Tg, low moisture absorption, and good heat resistance which is suitable for the lead-free soldering process.
Hiroshi Shimizu Shinichi Kamoshida Kazutoshi Danjobara Hikari Murai Yasuyuki Mizuno
Hitachi Chemical Co.,Ltd.1500 Ogawa,Chikusei-Shi,Ibaraki,Japan
国际会议
上海
英文
2008-03-17（万方平台首次上网日期，不代表论文的发表时间）