JPH01264202A - Resistance device for hybrid integrated circuit - Google Patents

Abstract

PURPOSE:To aim at a high integrity and reduce a cost as well as to extend the range of variable resistance values greatly by resistance trimming by forming resistors on a plurality of electrodes positioned on an insulation substrate so as for the longitudinal direction to become a substantially straight line. CONSTITUTION:Electrodes 2 and 3 are positioned on an integrated circuit insulation substrate 1 and along their longitudinal direction is continuously formed a resistor 4 on an insulation substrate 1 on each electrode and on its one side. First, these electrodes are provided each with one electrode shaped in a straight line, then with a resistor 4 formed by printing, and the electrodes may be cut together with a resistor to be made electrodes 2 and 3 at the time of trimming. For a trimming pattern 5, trimming should be performed beginning with a proper position on one of the electrodes by a desired resistance value. If the trimming pattern 5 is made close to the electrode, the resistance value R is decreased. On the other hand, if electrodes 2 and 3 are spacedly provided, the resistance value R is increased. Therefore, a resistor having a desired resistance value over a wide range can be obtained even if a similar printed resistor is used.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a resistance element for a hybrid integrated circuit.

[Conventional technology]

In a hybrid integrated circuit (hybrid IC), a resistive element is formed by providing opposing electrodes on an insulating substrate for a hybrid integrated circuit, printing a resistor thereon, and then trimming it to a desired resistance value. Further, a pair of opposing electrodes usually have their longitudinal directions opposed to each other, and both electrodes are arranged in parallel. Recently, in order to improve the precision of trimming, both electrodes are not parallel to each other,
It has also been proposed to form resistive elements diagonally opposing each other (Japanese Patent Application Laid-Open No. 61-256755).

[Problem to be solved by the invention]

However, all of the above resistor elements use electrodes with their longitudinal directions opposed, which poses a problem when high-density mounting is performed, and when the printing area of the resistor is limited, a wide range of resistance There is a problem in that it is not possible to perform trimming to obtain a value. To solve the above problem,
In forming resistors over a wide range of areas, the resistors are usually formed by repeating printing using inks having different resistance values, but this increases the number of times of printing, resulting in an increase in cost.

The purpose of the present invention is to solve the problems of the conventional hybrid integrated circuits. An object of the present invention is to provide a resistance element.

[Means to solve the problem]

That is, the present invention provides a hybrid integrated circuit characterized in that a plurality of electrodes are arranged on an insulating substrate so that the longitudinal direction thereof is substantially straight, and a resistor is formed on both electrodes. An object of the present invention is to provide a resistance element.

〔Example〕

Hereinafter, the present invention will be specifically explained with reference to the drawings.

FIG. 5 shows a conventional resistor element, ie, an integrated circuit insulating substrate 1 with electrodes 2.3 facing each other in the longitudinal direction, and a resistor 4 printed on the electrodes. In addition, in trimming, L pattern cut trimming pattern 5
The resistance value is trimmed to a desired value.

1 to 4 show one embodiment of the present invention.
In the figure, electrodes 2 and 3 are arranged on an integrated circuit insulating substrate l, and a resistor 4 is continuously formed on each electrode and on one side of the insulating substrate l along their longitudinal direction.

These electrodes may be provided separately and linearly in advance, but first one linear electrode is provided, then the resistor 4 is formed by printing, and during trimming, the electrode is attached together with the resistor. The electrodes 2 and 3 may be made by cutting.

The trimming pattern 5 may be trimmed from an appropriate position on one electrode according to a desired resistance value as shown in FIG.

In forming the resistor 4, it can be provided on the electrode and on one or both sides along the length of the electrode, but it is preferable to provide it on one side because trimming is easy. FIG. 2 shows the spacing between the electrodes 2.3. For the 0 interval, which is provided in advance, the position where the trimming pattern 5 is provided,
It can be determined appropriately by considering the resistance value.

In the present invention, although it depends on the trimming position, the resistance value R
is approximately proportional to β/W in Figure 1, so if the trimming pattern 5 is provided with the electrode 1.2 as shown in Figure 3 and the trimming pattern is brought closer to the electrode, the resistance value R will be lower;
If the electrodes 1.2 are spaced apart as shown in Figure 4, the resistance value R increases, so even with the same printed resistor, it is possible to obtain a resistor having a desired resistance value over a very wide range. .

〔Effect of the invention〕

In the resistance element for hybrid integrated circuits of the present invention, since the electrodes are arranged linearly, the area on which the resistor is formed can be reduced, allowing the formation of high-density hybrid integrated circuits. Since the resistance can be changed, the number of times the resistor is printed can be reduced and costs can be lowered.

[Brief explanation of the drawing]

1 to 4 are plan views of resistance elements according to embodiments of the present invention, and FIG. 5 is a plan view of a conventional resistance element. 1- Insulating substrate, 2.3-- Electrode, 4... Resistor cylinder roller No. 22 Fig. 3 Fig. 4

Claims (1)

[Claims] 1. A resistance element for a hybrid integrated circuit, characterized in that a plurality of electrodes are arranged on an insulating substrate so that the longitudinal direction thereof is substantially straight, and a resistor is formed on the electrodes.