The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Recently, high frequency signal transmission has been widely used in communication and broadband technologies, and even in mini-electronic devices. When signals travel at a high speed, how to maintain signal integrity becomes an important issue. Therefore, the electric properties in terms of dielectric constant (Dk) and loss factor (Df) of laminate materials for PCB production are more and more concerned...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.