# US 9,435,854 B2 · Electrical contactor and contact method for the same

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- Number: US 9,435,854 B2
- Document ID: US9435854B2
- Status: Granted
- Kind: B2
- Application number: 13/914,952
- Filed: 2013-06-11
- Published: 2014-01-09
- Granted: 2016-09-06
- Earliest claimed: 2012-07-06
- Assignees: Kabushiki Kaisha Nihon Micronics
- Applicants: Kabushiki Kaisha Nihon Micronics
- Inventors: Mika Nasu; Akihiro Karouji; Takayuki Hayashizaki
- Web page: https://patentgrep.com/patent/US9435854B2

## CPC

- G01R 31/2889: {Interfaces, e.g. between probe and tester (G01R31/31905 and G01R1/07364 take precedence)}
- G01R 1/067: Measuring probes
- G01R 1/06727: {Cantilever beams}
- G01R 31/2891: {related to sensing or controlling of force, position, temperature (G01R31/2874 takes precedence; sensing of force G01L; sensing of position G01B, G01D; sensing of temperature G01K; controlling in general G05)}
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)

## Abstract

An electrical contactor has a contact portion that is pressed onto a terminal of an electronic device and is electrically connected. When the dimension of the contact portion is S1, the contact dimension of the contact portion and the terminal of the electronic device is V, the amount of sliding of the contact portion is W, and the additional element including at least positional accuracy of the contact portion is X, the dimension of the contact portion S1 satisfies S1>V+W+X. In a contact method for the electrical contactor, when the sum of a clearance on the front end side in the sliding direction in starting contact and a clearance on the back end side in the sliding direction in ending contact is X3, the crushed area S2 of the terminal is set to satisfy a relationship of S2<S1−X3.

## Claims

### Claim 1

An electrical contactor in which a contact portion on a distal end of a main body is, with its base end of the main body supported, pressed onto a terminal provided on a surface of an electronic device and electrically connected, characterized in that,
when a dimension in a sliding direction of the contact portion is defined as S1, said contact portion being in contact with the terminal of the electronic device,
an average value of a dimension of contact between the contact portion and the terminal of the electronic device in a contact starting position and the dimension of the contact in a contact end position is defined as V,
an amount of sliding of the contact portion is defined as W, and
an additional value is defined as X, the additional value X including at least a positional accuracy of the contact portion and a sum of a clearance of the contactor from an end portion on a front side in a sliding direction to a contact surface in the contact starting position and a clearance of the contactor from an end portion on a back end side in the sliding direction to the contact surface in the contact end position,
the dimension of the contact portion S1 is set to satisfy a relationship of S1>V+W+X.

### Claim 2 (depends on 1)

The electrical contactor according to claim 1, wherein
the dimension of the contact portion S1 is set within a range not to contact with adjacent electrical contactors.

### Claim 3 (depends on 1)

The electrical contactor according to claim 1, wherein
a minimum value Vmin. of the contact dimension V of the contact portion and the terminal of the electronic device is 14% of the terminal size.

### Claim 4 (depends on 1)

The electrical contactor according to claim 1, wherein
a maximum value Vmax. of the contact dimension V of the contact portion and the terminal of the electronic device is 40% of the terminal size.

### Claim 5 (depends on 1)

The electrical contactor according to claim 1, wherein
a shape of the terminal of the electronic device is circular, polygonal, or elliptical.