IṢẸ́ ỌNÀ
ẸWÀ ÀTI ÌLERA
IṢẸ́ ỌWỌ́
ÀṢÀ ÀTI ÌTÀN
ÌṢERÉ
ÀYÍKÁ
OÚNJẸ ÀTI OHUN MÍMU
REVERSE ENGINEERING
SÁYẸ́ǸSÌ
ERÉ ÌDÁRAYÁ
ÌMỌ̀-Ẹ̀RỌ
ÀWỌN OHUN WÍWỌ̀
Copper-Clad FR-4 Board: Glass Cloth, Epoxy and Foil
FR-4 is the board most printed circuits are made on: woven fibreglass cloth bound with an epoxy resin that is flame resistant (self-extinguishing, typically through bromine compounds). Glass cloth impregnated with resin is called pre-preg. Stacks of pre-preg with copper foil on the outside are laminated in a press with heat and pressure into one inseparable board, the copper-clad laminate that circuits are later etched from.
Ilọsíwájú
Factory process
Ìlànà
1
1
Impregnate
Impregnate
Impregnate the woven glass cloth with the flame-resistant epoxy resin to make pre-preg sheets.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Aṣọ fọ́nrán dígí tí a hun1 as required
Resini epoxy1 as requiredÀwọn irinṣẹ́ tí a nílò:
Ìlà ìrinmọ́ pre-preg2
2
Stack
Stack
Stack the pre-preg sheets with copper foil on one or both outer faces.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ewé Bàbà1 as required3
3
Laminate
Laminate
Press the stack with heat and pressure for a set time, curing it into one solid board.
Àwọn irinṣẹ́ tí a nílò:
Ẹ̀rọ ìtẹ̀ ìpele gbígbónáÀwọn ohun-èlò
3- 1 as requiredÀyè
- 1 as requiredÀyè
- 1 as requiredÀyè
Àwọn irinṣẹ́ tó nílò
2Ìtọ́nisọ́nà yìí ń ṣe
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