KR19980038777A - Boards for Multiple Printed Wiring Circuits - Google Patents

Abstract

The present invention relates to a printed circuit board (PCB) that can be used regardless of the pin spacing of each IC in experiments using various integrated circuits (IC). To this end, the present invention can insert an IC having a 2.5 mm standard into a PCB. And a separate hole designed to insert an IC of 1.75 mm at a predetermined distance from a hole in which a hole and a 2.5 mm IC can be inserted.

Description

Boards for Multiple Printed Wiring Circuits

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed circuit board (abbreviated as PCB), and more particularly, to an IC (integrated circuit, abbreviated as IC) in a PCB mainly used for various circuit experiments. It relates to a multi-standard PCB that can be used regardless of pin specifications.

As is well known, a PCB is a printed wiring circuit board manufactured by printing a required circuit by coating copper foil on a sheet of paper epoxy or glass epoxy, and removing other parts thereof. However, if necessary, both sides are used to attach ICs and other components to manufacture various devices.

In the conventional conventional PCB, when performing various experiments using ICs, there are many cases in which the specifications of the pins attached to each IC, that is, the spacing between the pins and the like, are different. Since it is fixed at 2.5mm and various sockets are generally sold in accordance with this standard, for example, when using a microcomputer with a pin spacing of 1.75mm, it is impossible to use or design a separate PCB and It is used by soldering wires between sockets of 1.75mm size.

Therefore, it takes a lot of time, there is a problem that the malfunction of the IC occurs due to a short circuit due to a poor contact, and there was a problem that a lot of effort and cost must be paid for a separate PCB design.

Accordingly, an object of the present invention is to solve the above-described problems of the prior art, and to provide a PCB capable of accommodating ICs having different hole spacings.

In order to achieve the above object, the present invention can insert an IC of 1.75 mm standard at a predetermined interval from a hole into which a 2.5 mm IC can be inserted into a PCB and a hole into which a 2.5 mm IC can be inserted. Multiple PCBs with separate holes designed to provide

1 is a view showing a substrate for a printed wiring circuit according to a preferred embodiment of the present invention

* Explanation of symbols for the main parts of the drawings

10: hole spaced 2.5 mm 20: hole spaced 1.75 mm

30: PCB

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings by those skilled in the art.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a substrate for a printed wiring circuit according to a preferred embodiment of the present invention, a plurality of holes 10 uniformly spaced at 2.5mm intervals on the PCB 30, evenly spaced at 1.75mm intervals It includes a plurality of holes (20).

In general, in the process of manufacturing and testing various devices, the IC is mainly used in that the pin spacing is mostly 2.5 mm or 1.75 mm, and as shown in FIG. In designing the hole, a hole 20 for inserting an IC of 1.75 mm standard at a predetermined interval from the hole 10 into which an existing IC of 2.5 mm can be inserted is separately installed.

In addition, since the diameters of the holes 10 and 20 into which the respective ICs can be inserted are the same in the thickness of each pin in the IC of 2.5 mm or the IC of 1.75 mm, the diameters of the holes into which the pins are inserted are all the same. It is designed to insert and fix the pin with proper adhesion to prevent the pin from falling off and ease of insertion.

Therefore, an IC of 2.5 mm and an IC of 1.75 mm can be connected to one PCB at the same time.

As described above, according to the present invention, an IC of 2.5 mm and an IC of 1.75 mm can be used in a single PCB, and thus a short circuit due to poor contact or a separate PCB is required when manufacturing and testing various devices. This can save time and money.

Claims (2)

In a printed circuit board (PCB) to which an IC can be mounted, at least two first hole lines each consisting of a plurality of holes uniformly arranged according to a first standard in which each hole spacing is set, and the first hole line And at least two second hole lines each having a predetermined arrangement interval therebetween, each of which comprises a plurality of holes uniformly arranged in a second standard set at least smaller than the set first standard. The multiple PCB according to claim 1, wherein the set first standard is 2.5 mm and the set second standard is 1.758 mm.