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Switch, method of manufacturing the same, and electrostatic relay

A manufacturing method and switch technology, applied in the direction of electrostatic relays/electrical adhesion relays, relays, electric switches, etc., can solve the problems of peeling of conductive layers, difficulty in increasing the thickness of conductive layers with high hardness, etc., to achieve increased opposing area, Stable contact stability and the effect of reducing internal stress

Active Publication Date: 2014-09-17
OMRON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in such a contact structure, it is difficult to increase the thickness of the conductive layer with high hardness. In addition, when the thickness of the conductive layer with high hardness is increased, it is easy to cause peeling of the conductive layer.

Method used

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  • Switch, method of manufacturing the same, and electrostatic relay
  • Switch, method of manufacturing the same, and electrostatic relay
  • Switch, method of manufacturing the same, and electrostatic relay

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0067] (structure)

[0068] figure 1 It is a sectional view showing the structure of the switch of Embodiment 1. The switch 31 includes a fixed contact portion 33 and a movable contact portion 34 . The fixed contact portion 33 has its lower surface fixed to the upper surface of the base substrate 32 via the insulating film 42, and the movable contact portion 34 floats from the upper surface of the base substrate 32 and is connected to the base substrate 32 by a driving mechanism or an actuator. Move in the direction parallel to the upper surface (the direction indicated by the white arrow). For example, a MEMS switch having a structure disclosed in Patent Document 1 may be used as the switch of the present invention.

[0069] The fixed contact part 33 is provided with a wiring pattern part 48 on the upper surface of the fixed contact substrate 41 whose surface is covered with the insulating layer 40 . The wiring pattern portion 48 is composed of a base layer 43 located on ...

no. 2 approach

[0104] Figure 7 It is a sectional view showing the structure of a switch 31A according to Embodiment 2 of the present invention. In this switch 31A, without using base layer 43 , buffer layers 44 , 54 and conductive layers 45 , 55 are alternately laminated on the upper surfaces of insulating layer 40 and insulating layer 50 starting from buffer layers 44 , 54 .

[0105] Figure 8 (a)~(d), Figure 9 (a)~(c) and Figure 10 (a)-(c) are sectional views which show the manufacturing process of switch 31A. In this manufacturing method as well, the wiring pattern portions 48 and 58 are formed by vapor deposition, sputtering, and the like.

[0106] First, if Figure 8 As shown in (a), the upper surface of the substrate A1 is covered with the insulating layer A0, and the buffer layer A4 is formed on the upper surface of the insulating layer A0 by evaporation, sputtering, electroless plating, etc., and then, as Figure 8 As shown in (b), the conductive layer A5 is formed on the up...

no. 3 approach

[0114] Next, the configuration of the high-frequency electrostatic relay 31B according to Embodiment 3 of the present invention will be described. Figure 11 It is a top view showing the structure of the electrostatic relay 31B. Figure 12 will be Figure 11 The enlarged perspective view of part A of Figure 13 It is an enlarged perspective view showing the fixed contact portion 33 and the movable contact portion 34 . Figure 14 is along Figure 11 A schematic cross-sectional view of the B-B line.

[0115] In this electrostatic relay 31B, a fixed contact portion 33 , a movable contact portion 34 , a fixed electrode portion 35 , and a movable contact portion supporting the movable contact portion 34 are provided on the upper surface of a base substrate 32 made of a Si substrate, a glass substrate, or the like. The electrode part 36 , the spring 37 , and the supporting part 38 supporting the spring 37 .

[0116] Such as Figure 14 As shown, the fixed contact part 33 passes...

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Abstract

A switch, its manufacturing method, and a relay, using a contact material with high hardness to form contacts with a large opposing area. The end face of the movable contact part (34) in the moving direction faces the end face of the fixed contact part (33). The fixed contact part (33) alternately laminates multiple buffer layers (44) and conductive layers (45) on the fixed contact substrate (41) by vapor deposition, sputtering, electroplating and the like. The end of the conductive layer (45) facing the movable contact part (34) protrudes more than the end surface of the buffer layer (44), and the end surface of the conductive layer (45) becomes a fixed contact (46) (contact surface). The movable contact part (34) alternately laminates multiple buffer layers (54) and conductive layers (55) on the movable contact substrate (51) by vapor deposition, sputtering, electroplating and the like. The end of the conductive layer (55) facing the fixed contact part (33) protrudes more than the end surface of the buffer layer (54), and the end surface of the conductive layer (55) becomes a movable contact (56) (contact surface).

Description

technical field [0001] The present invention relates to a switch, a method of manufacturing the same, and an electrostatic relay. Specifically, it relates to a switch having a contact surface perpendicular to the moving direction of a movable contact portion, a method of manufacturing the same, and an electrostatic relay using the switch structure. Background technique [0002] In switches and relays, since the switches and relays cannot operate when the contacts are welded together, it is important to take countermeasures against welding of the contacts. One of the countermeasures for avoiding welding of the contacts is to use a contact material that is as hard as possible. [0003] In addition, in order to stably contact the contacts when there is a processing error in the contacts or there is variation in the movement of the movable contact each time, the opposing area of ​​the contacts has to be increased. When the side surfaces of the conductive layer formed on the su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H59/00H01H49/00
CPCH01H3/001H01H1/0036H01H1/06Y10T29/49105H01H59/0009H01H1/023H01H1/021H01H2001/0078
Inventor 吉武直毅增田贵弘
Owner OMRON CORP
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