JPH0199285A - Solder member for mounting electronic component - Google Patents

Abstract

PURPOSE:To effectively mount an electronic component by engaging a ringlike solder with an insulation sheet, and welding the terminal of the component by passing it through the ring. CONSTITUTION:A recess 106 indicating a direction is formed similarly to an IC on one short side of a rectangle, and a terminal number 105 of the ID is marked near the hole 104. A metal ring 103 around the hole 104 is made of copper, and the part except the ring 103 is made of plastic. A brazing material 101 and flux 102 necessary to one welding are attached to the ring 103. A 16-pin IC 109 is inserted to a printed substrate 111, brought into contact with the terminal 100 of the IC 109, buried and soldered. Thus, an electronic component can be effectively mounted.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a solder used when mounting electronic components onto a printed circuit board.

[Conventional technology]

Conventionally, solder used to mount electronic components onto a printed circuit board has a main body shaped like a long and thin rod, as shown in FIG. 4, and consists of a flux 102 in the center and a brazing filler metal 101 on the outside.

[Problem that the invention seeks to solve]

Conventional solder is in the form of a long, thin rod, so it cannot be fixed in place, and it is difficult to hold down the electronic components being soldered by holding the solder in one hand and the soldering iron in the other, which often causes the solder to bend or float. Furthermore, due to its shape, solder can only be supplied from one direction, and the amount that melts and adheres varies depending on the temperature of the iron and the time you apply the iron, so unless you are an expert, it is difficult to apply the appropriate amount evenly around the terminal. The drawback is that it is time-consuming as it requires soldering one terminal at a time.

[Means for solving problems]

The solder member for mounting electronic components of the present invention includes a plurality of ring-shaped solders fitted into an insulating sheet at positions corresponding to the terminal arrangement of the electronic components.

〔Example〕

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

FIG. 1(a) is a perspective view of a first embodiment of the present invention, and FIG. 1(b) is a cross-sectional perspective view taken along line AA' in FIG. 1(a).

The plastic insulating sheet 107 has 16 holes with a diameter of 1 mm divided into two rows, and the distance between the centers of adjacent holes is 2.54 mm, and the distance between the centers of the holes in the adjacent row is 2.54 mm. is 7.62 mm. One of the short sides of the rectangle has a recess 1.06 indicating the direction like the IC, and the terminal number 105 of the IC is written near each hole 104. The metal ring 103 around the hole is made of copper, and the parts other than the ring are made of plastic. In addition, the ring part is filled with brazing filler metal 101 and flux 10 necessary for one welding.
2 is attached.

FIG. 2 shows I
FIG. 3 is a cross-sectional perspective view showing a state in which C is mounted on a printed circuit board.

The 16-pin IC 109 may be inserted into the printed circuit board 111, and the terminals 110 of the IC 109 may be pressed into the holes 104 of the electronic component mounting solder member 108 for soldering. Mounting of IC on printed circuit board can be done easily and reliably.

FIG. 3(a) is a perspective view of a second embodiment of the present invention, and FIG. 3(b) is a cross-sectional perspective view taken along line AA' in FIG. 3(a).

Hole size, distance between holes, terminal number 105,
The recess 106 is the same as in the first embodiment.

This embodiment has the advantage that since the solder part for welding is stretched toward the center, the stretched part can be easily welded with sheet wires, etc., if necessary.

〔Effect of the invention〕

As explained above, in the present invention, since the ring-shaped solder is fitted into the insulating sheet, the terminal of the electronic component can be passed through the ring and welded as is, so the electronic component can be mounted safely and reliably. be. In other words, a) When welding or wiring, terminal numbers can be determined visually, allowing more reliable welding and wiring in a shorter time.

b) Solder for one IC can be fixed at a time, so
I don't mind the hassle of welding.

C) When welding terminals, there is no need to hold the solder, so you can hold the workpiece with your hands.

d) All welds can be made evenly around the terminal with the appropriate amount of solder.

[Brief explanation of the drawing]

FIG. 1(a) is a perspective view of the first embodiment of the present invention, FIG. 1(b) is a cross-sectional perspective view taken along line AA' in FIG. 1(a), and FIG. 2 is a perspective view of the first embodiment of the present invention. FIG. 3 is a cross-sectional perspective view showing the state when an IC is mounted on a printed circuit board using the embodiment 1.
) is a perspective view of the second embodiment, a cross-sectional perspective view taken along line AA' in FIG. 3(b), and FIG. 4 is a perspective view of conventional solder. 101... Brazing metal, 102... Flux, 103
...metal ring, 104...hole, 105...terminal number, 106...dent, 107...insulating sheet,
108...Solder member for electronic component mounting, 109...
IC1110... terminal, 111... printed circuit board,
112...Conductive pattern.

Claims (1)

[Claims] A solder member for mounting electronic components, characterized in that a plurality of ring-shaped solder rings are fitted into an insulating sheet at positions corresponding to the terminal arrangement of electronic components.