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Question:

What kind of circuit board according to plate classification?

What kind of circuit board according to plate classification?

Answer:

The first is a single panel, in the most basic PCB, the parts are concentrated in one side, the conductor is concentrated on the other side. Because the wire only appears on one side, it is called the PCB. Single panel is usually simple, low cost, but the drawback is that it can not be applied to complex products. Double panel is an extension of a single panel, when the single layer wiring can not meet the needs of electronic products, it is necessary to use a double-sided board. Both sides of the copper covered with a line, and through the hole to pass through the two layers of the line, so that the formation of the required network connection.
Circuit board divided by the number of layers is divided into single panel, double-sided board, and multilayer circuit board three major categories.
FR-4:1) flame retardant copper clad epoxy E glass cloth laminate and adhesive sheet material thereof. Detail specification for IPC4101 number is 21; Tg = 100 DEG C; 2) flame retardant copper clad modified or unmodified epoxy E glass cloth laminate and adhesive sheet material. IPC4101 detailed specification No. 24; Tg 150 DEG C ~200 C; 3) flame retardant copper clad epoxy /PPO glass cloth laminate and adhesive sheet material thereof. IPC4101 detailed specification number 25; Tg150 ~200. 4) flame retardant copper clad modified or unmodified epoxy glass cloth laminated sheet and adhesive sheet material. Detail specification for IPC4101 number is 26; Tg170 ~220 DEG C; 5) flame retardant copper clad E epoxy glass cloth laminate (for catalytic additive). IPC4101 detailed specification No. 82; Tg N/A; 94vo-cem-1
FR-1: flame retardant copper clad phenolic paper laminate. IPC4101 detailed specification No. 02; Tg N/A;

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