Integrated satellite navigation chip and manufacture method thereof
A satellite navigation and chip technology, which is applied in the field of satellite navigation, can solve problems such as insufficient connection between the core algorithm of the radio frequency chip and the baseband processing chip, restricting the rapid development of the Beidou satellite navigation industry, and poor confidentiality of technical solutions, so as to reduce secondary The effect of development difficulty, low cost, area and volume reduction
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[0040] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to specific embodiments and drawings.
[0041] Figure 1a to Figure 1e It is a cross-sectional schematic diagram of a specific implementation process of an integrated satellite navigation chip according to the present invention.
[0042] Step 1, design and produce such as Figure 1a The two-layer printed circuit substrate 101 shown for realizing the logical connection and supporting function between multiple chips can be manufactured using a conventional substrate process. In addition to the two layers used to realize the electrical connection of the integrated navigation chip, the substrate The redistribution layer and the pad structure 102 for the bonding wire pads of the surface die on the upper surface are generally composed of metals such as copper, nickel, and gold;
[0043] Step 2, such as F...
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