CN202310290U - Anti-welding dry film circuit board - Google Patents

Abstract

The utility model provides an anti-welding dry film circuit board including a circuit board base, a dry film and a copper wire. The dry film is spread on the circuit board base uniformly. The copper wire is wrapped with the dry film. The anti-welding dry film circuit board in the utility model is simple in structure and excellent in performance.

Description

Anti-welding type dry film circuit board

Technical field

The utility model relates to circuit board, is specially anti-welding type dry film circuit board.

Background technology

Traditional copper cash transformer life is short, making is complicated, cost is high owing on circuit board, install; The substitute is the circuit board plane transformer; Because it has the higher voltage requirement; Operational environment is more abominable, and conventional liquid state resistance solder paste China ink copper face turning printing ink after printing can approach and leak electricity, and shortens dramatically useful life; If printing ink is too thick, print pass increases, and the oil film thickness on the copper cash can be thicker because of stack, can influence the gross thickness of circuit board, influences components and parts and installs.This contradiction is difficult to hold always.

The utility model content

The technical problem that the utility model solved is to provide anti-welding type dry film circuit board, to solve the shortcoming in the above-mentioned background technology.

The technical problem that the utility model solved adopts following technical scheme to realize:

Anti-welding type dry film circuit board comprises circuit board base, dry film and copper cash, and said dry film is layered on uniformly on the circuit board base, is wrapped in copper cash in the said dry film.

Beneficial effect

The utility model is simple in structure, excellent performance.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.

Anti-welding type dry film circuit board comprises circuit board base 1, dry film 2 and copper cash 3, and said dry film 2 is layered on uniformly on circuit board base 1, is wrapped in copper cash 3 in the said dry film 2.

The dry film dry film 2 (thickness 0.076mm) that has anti-welding performance through use is through the vacuum pad pasting; Exposure is developed, and solidifies; Can reach and control total thickness of slab well; Keep the copper cash 3 turnings thickness that insulate uniformly that 0.076mm is also arranged simultaneously, have highly stable insulation property, the male and fomale(M&F) that reaches 105um that simultaneously thick copper cash 3 tunnel is caused has the good insulation performance protective effect.

More than show and described basic principle of the utility model and the advantage of principal character and the utility model; The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described, under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications; These variations and improvement all fall in the utility model scope that requires protection, and the utility model requires protection range to be defined by appending claims and equivalent thereof.

Claims (1)

1. anti-welding type dry film circuit board comprises circuit board base, dry film and copper cash, it is characterized in that, said dry film is layered on uniformly on the circuit board base, is wrapped in copper cash in the said dry film.

Images