JPH04163303A - Antistatic fingerstall - Google Patents

Abstract

PURPOSE:To obtain the title fingerstall useful for handling products, preventing electrostatic breaking failure of semiconductor product by static electricity caused by friction to product by partially exposing a net composed of electrically conductive fine wire on the surface and the back of rubber fingerstall. CONSTITUTION:A net composed of electrically conductive fine wire 2a comprising copper wire having 1-100mum diameter is impregnated with a rubber material 1 to give the objective fingerstall wherein the electrically conductive fine wire 2a is partially exposed on the outer surface and the inner surface of fingerstall.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a finger cot, and more particularly to the structure of a portion that comes into contact with a product and a human body during product handling.

[Conventional technology]

Conventional finger cots are made of a stretchable material such as rubber, or a mixture of conductive powder (for example, carbon powder), as shown in Figure 3 (a) and (1: l). However, in the former case, the entire bag made of insulating material is likely to become electrically charged. In addition, the finger sack made of the latter material has a total resistance of several MΩ.
It has a structure that makes it difficult for electrification to occur due to its conductivity.

[Problem to be solved by the invention]

When conventional finger sacks are used for work such as handling products, the finger sacks become charged due to friction with the product, etc., and with finger sacks that do not contain conductive powder, the charged potential is 500V.
It becomes more than that. Also, if you use a product that contains conductive powder, the surface will deteriorate due to friction, so the
There was a problem in that the semiconductor products were charged with electricity even at the 0■ level, causing electrostatic damage to the semiconductor products and causing them to malfunction.

[Means to solve the problem]

A first invention of the present application provides an antistatic finger cot having conductive parts on an outer surface and an inner surface, respectively, and in which the conductive parts on the outer surface and the inner surface are electrically connected to each other. Parts of the front and back surfaces of the net (the electrical conduction means is made of thin conductive wires) are exposed to the outer surface and the back surface, respectively.

Further, the antistatic finger cot according to the invention in Box 2 has a conductive film coated on the front and back surfaces of the rubber finger cot.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1(a) is a front view of an embodiment of the invention in box 1, and FIG. 1(b) is a partially enlarged sectional view. A rubber material 1 is impregnated into a net made of thin conductive wires 2a (copper wire or carbon fiber) having a diameter of several μm to 100 μm, and a portion of the thin conductive wires 2a are exposed on the outer and inner surfaces of the finger cot. When this antistatic finger cot is worn on a finger, conductive wires exposed on the outside and the human body are electrically connected to each other, so that the charged potential can be lowered.

As shown in FIG. 1(b), several thinner conductive wires may be made into a bundle or a net.

FIGS. 2(a) and 2(b) are a front view and a sectional view of an embodiment of the second invention.

It is coated with Ni, etc. (deposited by sputtering). Although sputtered films are mechanically strong, they are subject to significant wear and tear. Furthermore, since the entire surface is conductive, the antistatic effect is even more excellent.

In any of the above cases, the charged potential of the finger cot is: ~1o
oV4. d'aj Kusu 7p, l: is "r."

[Effects of the invention] ′ □・As explained above, the present invention provides a conductive surface that comes into contact with personnel on the finger cot surface that comes into contact with products, etc. when handling them, thereby reducing static electricity caused by friction with the product. This has the effect of preventing electrostatic breakdown failures in semiconductor products. Furthermore, the use of conductive thin wires and the like can suppress deterioration due to abrasion during handling of the product.

[Brief explanation of drawings]

FIG. 1(a) is a front view of one embodiment of the invention in box 1, FIG. 1(b) is a partially enlarged sectional view, and FIG. 1(c) is a
Fig. 2 (, a) and (, b, ) are a partially enlarged sectional view showing a modification of the one shown in b), and Fig. 3 (a) is a front view and a sectional view of an embodiment of the invention in box 2; and (b) are a front view and a sectional view of a conventional finger cot.
, 1... Rubber material, 2.2a, 2b... Conductive thin wire, 3... Conductive film. , ゛

Claims (1)

[Scope of Claims] 1. An antistatic finger cot having conductive parts on the outer and inner surfaces, and electrically conducting between the conductive parts on the outer and inner surfaces, wherein the electrically conductive means is electrically conductive. 1. An antistatic finger cot characterized in that a part of the front surface and the back surface of the net made of fine wires are exposed on the outer surface and the back surface, respectively. 2. An antistatic finger cot characterized by having a conductive film adhered to the front and back surfaces of the rubber finger cot.