JPS60153192A - Substrate for printed circuit board - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] A Invention A Loquat Pig Meat with Loquat 2 Irum Temple's Loquat Enki-like Meat 1 Royo 1 Ko σ One-sided Market Growth and Half and Fatigue Frequency τ- Increased number of holes was added to the board for the 7ζ print distribution board.
- In the printed wiring board, the inner 11I conductor is stacked with f and δr similar to the e-rut. Do it with through-hole plating fi/) stuttering 61. Inner J near the Surhole wall by the heat mi army, such as the opening of the underground
In order to avoid cracks in the surface of the printed wiring board, the surface area of the printed wiring board with through-holes is 47 cm. t' is added to the conductor of the part in advance on the board.
L'fc formed by etching VC of electrolytic steel f'h
.

Slit hole or through hole and land part T plating K
J: Even in the 11 tatami body conversion method, #1 force rC will push through the wall through the hole. The low cost of the wire becomes a problem.
Sieve the power of the secret shield by taking the materials of the locomotive. From then on, this place fell into place.
General 1/Cf? If the length of Bihan is enough, it becomes C, and the 11ζ labored 5gi vertical is not enough, so the above is 1C Kupoint Kameshin.

This invention is applied to t, a and t, so h
Both sides of the loquat substrate of the insulation board
It is desirable that one side of the fc be heat treated by self-priming at 160°C or higher in a reducing atmosphere so that the fc copper pongee can be stored.

In the present invention rc, heat treatment by-product a is 41J at 160℃ or higher.
o Heat treatment time a It's good to learn a short sword, so I'ff
15C Heat treatment is carried out at a temperature of 1°C or above in a normal atmosphere for tJm. When heat treated in a normal atmosphere, the copper surface will become brittle.
The color of the Lm surface changes to gray-black, and this layer with advanced Europeanization becomes weighted f. In this case, the flaking pieces may become defective foreign substances in the manufacturing process of the printed grater board, resulting in a decrease in quality. l'ff *J 8-11 pancreatic discoloration with significant discoloration and increased oxidation on the undressed surface 72 < 71
:! In addition, the atmosphere of heat treatment is such that the amount of copper increases and the fatigue level increases as well. By tracing the non-conducting gas τ such as argon gas, Tsugura n20
The heat-treated rh with the above-mentioned force method is due to the adhesion force with the loquat wire rod.There is a change in the precipitation type curved shape that can be formed. Reduction'$,
LA+1 white τ heat treated with a vortex key at 160℃ or higher in an ambient atmosphere
Laminated board, waxed film, copper laminated board,
Mackerel 1 night ka film (flexible indigo paulownia hina imitation base imitation) τ
A common method of mounting is used for small rice.

Used in the printed wiring board of the example tracer from Samurai F
Heat treatment time 1 hour in a furnace with gas atmosphere, heat treatment time 1.50,1
50,200,250.3oo, 65o, 400
Additional tests were carried out on copper pongee which had been heat treated at 0°C and its growth was evaluated. 1tato Toyo Boiled Wine table Tenron type tensile test) was used. Test piece size U
10×1201111O, Te'ry distance x'i s
o mm, tensile speed solidification = 66°-E7t at 21I1mZ min
J I 5-P-51135 is running out of time/8 hours 3
JR exam Shinjyo used bamboo 9 songs are far Qiangpeng τ leg Bear Co sample width l Q 01111. The radius is 155° for both the upper and lower sides, and the curve is at a speed of A175 and 1 time/min.
The results obtained using 1,000 K IJ 2 an 7 of a curved surface are shown in FIGS. 1 and 2 VC.

Hinduism? ! I, using the same electrolytic mountain as used in the example,
Heat treatment was carried out in a rich atmosphere at the same heat treatment time and final Jff rating as in the example. I investigated the elongation rate and the bending distance in the case of 11η with the btM example.
The results of 〇 and others, which were also measured under the same conditions, are combined with the results of the actual N cases in Figure 1゜Figure 21/(Boss).

As is clear from Fig. 1 and Fig. 2, the Kjfl of the present invention causes a change τ in the human shape and curve by heat treatment in the reducing atmosphere of an electrolytic copper mine. Beyond 551iI appearance?
In the process of printing, the cracks in the tatami body are caused by the etching of the electrolytic copper recess (near the through hole), which is caused by one ball per heat of the solder. suppressed nru Q

[Brief explanation of drawings]

The first one is the heat treatment vorticity and the elongation rate of the steel plate, and the second one is the heat treatment groove, and the 9 nails of the turtle scales are the flash of strength. Figure 1: Thermal temperature (0C) Figure 2: ψ The temperature of Ayu (0C)

Claims (1)

[Claims] 1. Printed on the ice surface of the insulating substrate, heat-treated at 150 degrees Celsius or higher in an atmosphere that will last for 7 years. len
Removal for M plate