Integrated satellite navigation chip and manufacture method thereof

Abstract

The invention discloses an integrated satellite navigation chip and a manufacture method thereof. The integrated chip comprises one or multiple substrates, bare chips, components, bonding wires and a BGA solder ball array, wherein the substrates are used for supporting functional chips to realize electrical connection between the functional chips, the bare chips and components of the radiofrequency, baseband, storage microprocessor and other functional chips are laid on the substrates in a stacked or planar manner, the bonding wires are used for realizing electrical connection among the functional chips as well as between the functional chips and the substrates, and the BGA solder ball array is formed at the back sides of the substrates via backflow in a C4 technology. The bare chips and components of the multiple functional chips for realizing Beidou&GPS dual-mode satellite navigation are integrated in a packaging body via a series of substrate and micro-assembly technologies to form a small electronic product with high performance, high density and low loss, reception and processing of Beidou&GPS dual-mode satellite navigation are realized, and the problems that a present satellite navigation product module is large in size, high in wring difficulty, high in cost and the like are solved.

Description

technical field [0001] The invention relates to the field of satellite navigation, in particular to a structure and a manufacturing method of a high-density and high-integration Beidou & GPS dual-mode satellite navigation integrated chip realized by using multi-chip packaging technology. Background technique [0002] The Beidou satellite navigation system is a global satellite navigation system with my country's independent intellectual property rights. With the gradual improvement of the construction of the Beidou satellite navigation system, the satellite navigation, precise timing and location service industries with Beidou as the core are playing an increasingly important role in the national economic life, becoming a crucial emerging industry, and the development prospects are very broad . [0003] High-performance satellite navigation terminals and chips are the core of satellite navigation systems and the foundation of the entire navigation service industry chain. A...

AI Technical Summary

Problems solved by technology

At present, the terminal application development of domestic Beidou satellite navigation is biased. Some focus on the development of radio frequency chips, and some focus on baseband processing chips. Few can provide independent integrated solutions for radio frequency and baseband processing chips. As a result, the core algorithms of the RF chip and the baseband processing chip are not well connected, and the performance of module development is also greatly reduced.

At the same time, due to the secondary development of packaged radio frequency and baseband discrete chips to realize the Beidou satellite navigation function, the modules have problems such as large size, high power consumption, and high development costs, which are not conducive to popularization and application.

In addition, the confidentiality of its technical solutions is also poor, which to a certain extent restricts the rapid development of the Beidou satellite navigation industry

Images