Manufacturing method for arc chip, circuit board of electronic device and electronic device

Abstract

The invention discloses a manufacturing method for an arc chip. The manufacturing method for the arc chip comprises the following steps that (1) a chip workpiece is placed in a die; (2) the chip workpiece is fixed in the die; (3) the chip workpiece is polished by a polishing component according to preset parameters, so that the arc chip is formed. When the manufacturing method for the arc chip is applied, the chip workpiece can be polished by the polishing component according to the preset parameters, and the arc chip is formed under the premises that functional components inside the chip workpiece are prevented from being damaged and function completeness of the chip is guaranteed; thus, a rear shell of an electronic device is conveniently arranged to be in an arc shape, and the rear shell is attached to the fingers of a user and conveniently held by the user with hand. The invention further provides a circuit board of the electronic device. The chip manufactured with the method is applied to the circuit board. The circuit board has the advantages that the rear shell of the electronic device is conveniently arranged to be in the arc shape and is conveniently held by the user with hand. The invention further provides the electronic deice. The circuit board is applied to the electronic device, and the rear shell is in the arc shape and is conveniently held by the user with hand.

Description

technical field [0001] The present invention relates to the technical field of machinery industry, and more specifically, to a method for manufacturing an arc-shaped chip; it also relates to a circuit board of an electronic device, which uses the arc-shaped chip prepared by the above-mentioned manufacturing method; and relates to a An electronic device using the above-mentioned circuit board. Background technique [0002] With the development of society, electronic devices such as mobile phones and tablet computers are more and more widely used in people's daily life. The electronic device includes a casing and a circuit board; the casing includes a front cover part and a rear casing; the circuit board has a substrate and a chip disposed on the substrate; wherein the chip is disposed on the circuit board on a side facing the rear casing of the electronic device. [0003] In the existing electronic equipment, the chip has a rectangular structure with edges, resulting in a st...

AI Technical Summary

Problems solved by technology

However, when the user holds the electronic device, the finger is bent, and the flat back shell cannot fit the user's finger, which is inconvenient for the user to hold

[0004] In addition, the back shell has a flat plate structure, and its edges will limit the bending direction of the user's fingers, which further aggravates the disadvantage that it is not convenient for the user to hold

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