High-pin-count Quad Flat Package With Thin-film Termination Resistors

Abstract

This paper describes a high-pin-count quad flat package with termination resistors for high-speed and high-pin-count LSI chips. This package has 196 I/O leads with thin-film termination resistors formed around the chip mounting cavity. Termination resistors with accurate resistance values can easily be formed without trimming. This p,ackage has good electrical performance - low crosstalk noise and little waveform distortion - and it can transmit high-speed pulses up to 1.0 Gb/s (MU). This prototype package is suitable for high-speed, high-pin- count LSI chips for high-speed systems. INTRODUCI'ION