CN87214958U

CN87214958U - New type roofing clutch gold veneer sheet for printing curcuit

Info

Publication number: CN87214958U
Application number: CN 87214958
Authority: CN
Inventors: 刘俊泉
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-11-09
Filing date: 1987-11-09
Publication date: 1988-10-05

Abstract

The utility model relates to a copper foil covered laminated board used for printed circuits (hereinafter referred to as a composite foil board). The copper foil covered laminated board used for printed circuits is characterized in that the mechanical strength, the planeness and processability of punching shear are improved through using two reinforcing materials which are natural fiber paper and glass fiber felt. The utility model has the advantages of simple production process, low cost and firm combination of the glass fiber felt and the paper. The mechanical strength of the utility model is between a composite foil board with glass cloth paper element and a composite foil board with papers, so the utility model is suitable for punching shear and machining. Other electric performance, physical performance, etc. are capable of being compared beauty with the composite foil board with papers, so the utility model is also adequate for producing circuit boards, such as a television, a voice recorder, a radio, etc.

Description

New type roofing clutch gold veneer sheet for printing curcuit

The utility model relates to a kind of printed circuit of using glass mat and natural fiber paper to make reinforcing material with the novel copper-clad laminate of answering.

The multiple copper-clad laminate of used for printed circuit (hereinafter to be referred as multiple paper tinsel plate) mainly contains two big classes: multiple paper tinsel plate of glass cloth and the multiple paper tinsel plate of paper, the latter comprises that also the top layer has the multiple paper tinsel plate of refill of glass cloth again.Their national standard is seen GB4723～4725-84, and foreign standard has JISC6482～6485 of Japan; The ASTMD1867-78 of the U.S. etc.

The multiple paper tinsel plate of glass cloth has good electric, physics, mechanical performance; But because its mechanical strength is big, should not carry out the punching processing operation, cost is also high, generally is used to make the harsh circuit board of applied environment condition; The multiple paper tinsel plate of paper is widely used in the household electronic products that streamline produces (as television set, radio-cassette player etc.).The equipment precision requirement of producing the multiple paper tinsel plate of good quality paper is higher, and technology is complicated, and cost is higher; Defectives such as and the multiple paper tinsel plate of economical paper exists angularity big, and mechanical strength is on the low side; Thereby its broader applications have been limited; The surface has the multiple paper tinsel plate (CEM of the refill of glass cloth again ₁Type) phenomenon of glass cloth and paper imperfect bonding usually appears; Also exist in the punching processing the bigger defective of die apparatus infringement.

The purpose of this utility model is to provide a kind of production technology simpler, lower-cost improved novel multiple paper tinsel plate, it is except that having the same good electric physical property of the multiple paper tinsel plate of paper, it is good also to have evenness, glass mat combines the jail with paper, its mechanical strength is answered the paper tinsel plate between the two between multiple paper tinsel plate of glass cloth refill and paper, is fit to carry out the punching machining characteristics.These characteristics can be proved absolutely by table 1.

The utility model is because only need with glass mat replaced C EM ₁Glass cloth in the multiple paper tinsel plate, to production equipment, technical recipe, control of process parameters and operation generally need not be changed, and can realize.

The concrete structure of utility model is provided by following examples and Fig. 1 thereof.

Fig. 1 is the multiple paper tinsel plate structure profile that the utility model proposes.Describe in detail according to multiple paper tinsel plate structure and the production technology that the utility model proposes below in conjunction with Fig. 1.

The paper tinsel plate is by surface treated gluing electrolytic copper foil (1) again, and sized paper (2) and gluing glass mat (3) are formed.

JSF is coated then normally through anodic oxidation or alligatoring Passivation Treatment in electrolytic copper foil (1) surface ₄Adhesive, through baking, its glue amount is 15～20 grammes per square metre/rice ²(siccative); For the multiple paper tinsel plate of epoxy type, also coating adhesive not;

Sized paper and gluing glass mat are to soak with phenol-formaldehyde resin modified or modification E type epoxy resin alcohol acetone mixed solution with paper and glass mat on the special glue machine, make through baking.Control its resin content and be 50～70% volatile matters below 2%, solubility is in 60～100% scopes; Then according to product thickness specification and specification requirement thereof, usually be made into superimposed with 6～8 of this sized papers and 2 of gluing glass mats, and at the multiple above-mentioned electrolytic copper foil (1) of its one or both sides, put into hot press, in 150～170 ℃, unit pressure is that 3～10PMa kept 60 minutes down, makes the multiple paper tinsel plate of single or double.Its detailed performance is referring to № in the table 11;

№ 2 is the multiple paper tinsel plate performances of self-extinguishing type glass mat paper in the table 1.Its used sized paper is an impregnation at twice, and head is all over soaking with the low-molecular-weight thermosetting resin, and resin content is 15～20%; Soak for second time to add and account for resin total amount 10～30% bromide fire retardants (as TBA, TBC, BDDP etc.), 2～10% synergists (as stibium trioxide, Firebrake ZB etc.), phenol-formaldehyde resin modifieds such as 3～10% plasticizer (as epoxy soybean grease, phosphoric acid, triphenylmethyl methacrylate etc.) and an amount of pigment, release agent, solvent are again by the aforesaid multiple paper tinsel plate that is pressed into quadrat method.

Comparative example 1 is the multiple paper tinsel plate performance of economical paper;

Comparative example 2 is the multiple paper tinsel plate performances of paper that are used for the import of color television set.

(notes) * copper thickness is 0.035mm;

*, falls from 500mm eminence freely falling body with 53 grammes per square metre steel balls by the test method that the user proposes, and quality and crackle size that sample is pounded in inspection are evaluated the sample mass quality;

In the * * treatment conditions, connotations such as A, C, D, E see also the regulation of JISC6481-76 standard.

Claims

1, printed circuit at least simultaneously has one for the electrolytic copper foil (1) of making circuit with the structure of novel multiple copper-clad laminate, make the sized paper (2) of insulation and enhancing usefulness, it is characterized in that gluing glass mat (3) in addition, gluing glass mat (3) and sized paper (2) constitute insulating laminated sheet jointly.

2, according to the described laminated sheet of claim 1, the quantity of gluing glass mat is decided on the thickness specification and the specification requirement thereof of multiple paper tinsel plate, is generally 2.

3, according to claim 1 or 2 described laminated sheets, glass mat does not limit the top layer that is placed on laminated sheet, can be placed on internal layer yet, can also alternately arrange in pairs or groups with sized paper.