# US 2021/0243926 A1 · Mounting accuracy measurement chip and mounting accuracy measurement kit

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- Number: US 2021/0243926 A1
- Document ID: US20210243926A1
- Status: Published application
- Kind: A1
- Application number: 16/967,658
- Filed: 2018-02-12
- Published: 2021-08-05
- Earliest claimed: 2018-02-12
- Assignees: Fuji Corporation
- Applicants: Fuji Corporation
- Inventors: Yusuke YAMAKAGE
- Web page: https://patentgrep.com/patent/US20210243926A1

## CPC

- H05K 13/0882: {Control systems for mounting machines or assembly lines, e.g. centralized control, remote links, programming of apparatus and processes as such (H05K13/083 takes precedence)}
- H05K 13/08: Monitoring manufacture of assemblages
- H05K 13/089: {Calibration, teaching or correction of mechanical systems, e.g. of the mounting head}
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS

## Abstract

A mounting accuracy measurement chip includes a chip main body; and one or more protrusions provided on a mounting face of the chip main body, which serve as a contact surface with a mounting target at a position shifted from the mounting face of the chip main body. The one or more protrusions are disposed only within a range defined by a circle whose center is center of gravity of the mounting face and whose radius is half the length of the longest distance from center of gravity to the outer edge of chip main body. Further, a mounting accuracy measurement kit includes the above-mentioned mounting accuracy measurement chip and placement portion, having a degree of adhesiveness, to which the contact surface of mounting accuracy measurement chip, which can be placed, adheres.

## Claims

### Claim 1

A mounting accuracy measurement chip used to measure the mounting accuracy of a mounting device configured to mount a mounting member to a target mounting substrate, the mounting accuracy measurement chip comprising:
a chip main body; and one or more protrusions, provided on a mounting face of the chip main body, which serve as a contact surface with a mounting target at a position shifted from the mounting face of the chip main body;
wherein the one or more protrusions are disposed only within a range defined by a circle whose center is the center of gravity of the mounting face and whose radius is half the length of the longest distance from the center of gravity to the outer edge of the chip main body.

### Claim 2 (depends on 1)

The mounting accuracy measurement chip of claim 1, wherein the mounting accuracy measurement chip has multiple projections.

### Claim 3 (depends on 2)

The mounting accuracy measurement chip of claim 2, the mounting accuracy measurement chip comprising: four protrusions, including a first protrusion, a second protrusion, a third protrusion, and a fourth protrusion;
wherein the four protrusions are provided such that the first protrusion and the second protrusion are positioned symmetrically with respect to a line segment connecting the third protrusion and the fourth protrusion, and the third protrusion and the fourth protrusion are positioned symmetrically with respect to a line segment connecting the first protrusion and the second protrusion.

### Claim 4 (depends on 1)

A mounting accuracy measurement kit, comprising:
the mounting accuracy measurement chip of claim 1; and
a placement portion, having a degree of adhesiveness, to which the contact surface of the mounting accuracy measurement chip, which can be placed, adheres.