The electrical models of leadframe plastic CSPs (Chip Scale Packages) for RFICs have been established based on the S-parameter measurement. To evaluate their RF performance, an on-chip 50 ohm microstrip line was housed in a 32-pin BCC (Bump Chip Carrier) package. The insertion and return losses were calculated against frequency and compared to measurement. Excellent agreement has been observed up to 15 GHz. The package acts as a low-pass filter to cause a sharp cut off for the 50 ohm microstrip line operating above a certain frequency, which was predicted successfully from the established package models
Published in:
Electronic Components and Technology Conference, 2001. Proceedings., 51st
Date of Conference: 2001