JPS5973940A - Manufacture of laminated 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] Fl warp screw box used for unexploded BA, printed wiring board # construction, etc., has good dimensional stability, water resistance, and electrical performance υ
The present invention relates to a method for producing a thermosetting resin laminate. Paper-based thermosetting resin copper-clad laminates used in electronic devices are widely used with paper made from rco, linter pulp, and kraft valves.

In recent years, the thread screw 111, which has excellent water resistance, electrical performance, and high dimensional stability, has been developed in recent years.
When it comes to IL engineering, there is a strong demand for improved performance.

In other words, the automation of the number of printed circuit boards and the automation of the insertion of sound IS products (/J) has become extremely popular, and the use of printed circuit boards for various purposes has made shapes more complex and the residual copper ratio uneven, etc. However, the use of multi-phase paper and linter pulp in combination with paper as a raw material for Kizuki bulk materials with less size reduction has become popular. A plurality of sheets are in use.

In this process, the impregnation of resin into paper, drying efficiency, laminated board (IJ thickness, etc.) in the manufacturing process of Kurireg are considered.
The different performance of the paper used for each pre-leg is particularly important for the lifting platform made with horizontal laminates for intoxication pressurization. The warp screw IL for printed wiring boards is dimensionally stable and can be titrated to light.
S-Amaso, where changes have occurred in the shape and residual copper ratio of the printed wiring board,
The dimensional change of fL is so severe that it has become impossible to put it into practical use.Uninventively, it has not been possible to take these 191 points into account. In this method, the direction with the highest tensile strength is 25# with respect to the paper making direction.
Within/! S paper base material? 1 history is used as an enemy of Q''.

Paper base printing raw material valve A used in the invention.

Oak, maple, beech, birch, etc. υ broad-leafed oak, red pine, rainbow pine 5
If necessary, it can be changed to a pulburi ridge made of coniferous trees such as fir and fir, and cotton, or a combination of two or more of them.

The paper base material is produced by pouring it onto an endless wire mesh that is rotating in a pulp slurry machine, forming a paper layer, pressing the soil, and drying it through a papermaking process. ') The traveling direction is the paper making direction. .

The tensile strength of paper base materials is stipulated in JIS P8113 as follows.

In other words, parallel to the direction in which the load is applied: the specimen is clamped between two clamps with a flat surface, and during the test the specimen is Hold the test paper on one plane;
Cut the specimen to a length of about 250 mm. After installation, the tensile strength of the paper is determined by the load indicated when the test piece breaks.

In the invention, the strongest tensile strength is determined when the 41st direction is within 25 degrees to the paper making direction and the 41st paper base material is conveniently used.
1. Ru. If the angle exceeds 25 degrees, the laminate warp screw IL will become larger.

It is preferable to use less than 15 breaths.

The strength of the paper is the resin impregnation factor.
When the laminate is moistened with a force of 11, the voids remaining in the laminate are the cause of water damage and deterioration of the glaze performance. However, depending on the paper making process and the grain manufacturing process, a certain amount of strength is required, and a range of 0.4 to 066 g/cm' is preferable. In addition, the difference in translucency of castor m1 in the paper-based mounting plate caused differences in the amount of molding shrinkage of the laminating machine due to heating and pressure V due to the difference in lifting platform and resin impregnation. It is in the first phase, which has the disadvantage of not changing enough.

The castor oil strength was determined by floating a sample cut into 8mm x 8mm pieces on a castor oil soil that had been kept at a CV of 30cm, and applying castor oil to the entire surface of the sample. In the present invention, the difference in castor oil immersion speed between the front and back sides is 0 to 5 seconds (/
It is preferable to use a paper base material in the J range.

If the ratio of the tensile strength of the tensile strength of the material to the horizontal direction is the same, then the M-layer plate will be constructed with IJ, and the difference in dimensional expansion and contraction will occur between the valley grip pregs, resulting in a warpage of 7'l-1 dimensional change. The drawback is that there is not enough energy.

From this single point, the paper base tensile strength C/) warp direction and work direction orientation ratio is 1.0 to 1.4. : IG/J range ri) 2 usage; 6<t) is good.

Adding flammability and wet strength to the paper base, antimony trichloride, clay, and aluminum hydroxide (/JL
In addition, halogen, phosphorus, nitrogen, melamine, phenol, etc. can be applied to the skin, and for healing purposes, it can be applied.

Vis? as the thermosetting force used in the present invention? Jba 2
Reaction of phenols such as enol, cresol, xylenol, etc. with formaldehyde 8.
v Phenol resins mixed with alkylphenols, drying oils, xylene resins, toluene resins, etc. during reaction CIJ, or bisphenol-based epoxy resins, novolac-based epoxy resins, novolak-based epoxy resins, and alicyclic Evoquin 191 resins. 11. Contains a mixture of two or more resins and an amine thread curing agent or an acid anhydride curing C/J mixture and is used for the production of thermosetting resin laminates. Can be used for general heat absorption and fat.

In addition, in order to impart flammability to these resins, halides such as tetrabromohisphenol, phosphide additives such as triphenyl phosphate, and antimony trioxide flammability agents are used. Wow.

As a thermally curing resin, phenol cleavage and epoxy resin have a relatively high molecular weight, which causes poor impregnation and poor water resistance and electrical performance of the laminate. Before impregnating with oil, prepare 1 to 2 particles that have good affinity for paper.
The method of soaking the nuclear body in enol resin is effective. In the present invention, the usual method can be used for lamination molding of the laminate, and adhesive is applied to one or both sides of the laminate. It is also possible to use a copper foil assembly and make a LIilI 11-point laminated board.

Mi University ≦ M Wataru 1 Tari 1 700g of phenol, 300g of cresol.

Formalin (67% formaldehyde water rgM) +00
g, 25% ammonia water 3jg/) mixture was boiled with heated charcoal L6L, 1ζ was boiled with fat water under reduced pressure, and 1+-IC bath additive was added to obtain phenol rail varnish. The strength of the strongest tensile strength is 10 degrees to the paper making direction 1/(l, @i0.50 g
10n', and the ratio of the vertical force of the tension site to the machine direction is 1.
25. The difference in castor oil penetration between the front and back sides was 3.0 seconds.Impregnated and dried the paper base, and the total resin coating weight was 50% (0
The required number of pieces of stiff buriplek and copper foil with a coupling agent are put together at 165℃, 85kg/a [P is 40 molecules M1 beads? −+
The lπ0 warpage performance of a copper-clad laminate with a thickness of 1.6 mm is shown in the table below.The strongest tensile force is applied to the hardwood pulp in the papermaking direction.
The direction with '1 strength is 22 degrees, and the density is 0.50
, g / (i, the ratio of the vertical direction and the horizontal direction is 1.25. Castor oil & transparent paper base with a difference of 6.0 seconds on the front and back sides are used, impregnated?!I Same as 1. Needle i15 long planting] Zeng Yi anti-fertility I like 1. The warping performance is shown in the following table.

The strongest tensile force in the papermaking direction made of hardwood pulp is 60 degrees from the direction of the paper, and the tensile strength is W1 0,50 g/cm'. 25. Using a castor oil immersion embankment with a difference of 6°O cedar C1J lease, a copper clad laminate was prepared in the same manner as in 1, and the warpage performance is shown in the following table.

The test method PHI was tested.

(+X2): ■Test, test piece size 5O-OX250 (
1 trowel direction) m1% (remaining copper rate 50%) ■Process Normal condition → Etching → 160℃, 10 minutes drying ■Measurement method Measure the 4 corners of the edge using the standing method, and measure the maximum value -f: Rito do. Also, the absolute value difference between the maximum 1 night and the minimum 1 target is screw 11 and ding ゐ○: 3);■ Size outside the test +40 10 minutes dry processing ■ Breeding method The dimensions of the normal and treated specimens were increased by 111 fish.

The warpage difference is divided by the normal state to find the threading rate.As explained above, the warp screw 7-1 is
．． , Dimensions: 2P, 11P, hardenability, 9Smoke W tM
C and Gade Sanko manufacture several pieces of Zhang Seshu.

Claims (1)

[Scope of Claims] 1. Brigleg (which is made by impregnating a paper base material with a thermosetting resin and drying it)
In the method of manufacturing laminates, heat the required number of sheets and use a paper substrate whose strongest tensile strength is in the paper making direction (within 25mm). 2.Special design for use in paper substrates with a density of 0.4 to 0.6 g/cm and a difference of 0 to 5 seconds between front and back when immersed in castor oil. i
? For the range of J requirement described in item 1 (manufacturing of laminates). 6. Tensile strength/J1ζ Ratio of warp direction to machine direction: Vertical direction: Machine direction = 1.0 to 1.4: 1.CJC/J
Claims 1 or 12 (/J Method for manufacturing laminates) that apply within the scope of claim 1 or -12.