Fanout technology-based acceleration value recording device for penetration measurement

Abstract

The invention relates to a Fanout technology-based acceleration value recording device for penetration measurement. The device is characterized in that an amplifier bare chip (4), a filter bare chip, a processor bare chip (6), a power circuit bare chip and a memory bare chip are integrated in a plastic package molded body (7), are led out through a BGA ball (5), and are correspondingly connected with a circuit on a substrate (14); an MEMS accelerometer (11) is bonded on the substrate, and the MEMS accelerometer is connected with the circuit on the substrate through the BGA ball; the other surface of the MEMS is adhered to the bottom part of a tube shell (1) by using insulating glue (12); and the MEMS and the bottom part of the tube shell are protected and encapsulated by hard glue (10), and the other surface of the substrate is protected and encapsulated by soft glue (8). The fanout technology-based acceleration value recording device has the advantages that the defect that the penetration overload of the projectile body is analyzed and evaluated purely through experiments or theories at present is overcome, the device has the advantages that the evaluation result is accurate and rapid, the test cost can be reduced, the research period can be shortened, and the device can be applied to the evaluation of the penetration overload and the design of the penetration experiment projectile body.

Description

technical field [0001] The invention belongs to the field of micro-measurement system manufacture, and relates to an acceleration value recording device for penetration measurement based on Fanout technology. Background technique [0002] Penetrating ammunition is currently an important means of attacking ground structures, underground command centers, hangars, ammunition depots, and aircraft carrier decks. Penetrating ammunition can penetrate deep into hard targets with solid protection to achieve high-efficiency internal high-value targets. Damage, with the intensification of the confrontation between the offensive and defensive sides, high-value targets continue to go deep into the ground and the protection is more solid, the strength of the steel deck of the ship is getting higher and higher, the speed of the penetrating bomb is continuously increasing, and the penetrating overload sensed by the accelerometer is as high as 60,000 g, even more than 100,000 g, and transien...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the defects existing in the prior art that cannot meet the environmental reliability requirements of high overload resistance of missiles due to the large number of welding points, and provide a kind of acceleration value record for penetration measurement based on Fanout technology Device and its preparation method

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