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12 Layer FR4 ENIG Impedance Control PCB

12 Layer FR4 ENIG Impedance Control PCB

Tlhaloso e Khutšoanyane:

Likarolo: 12
Qetello e holimo: ENIG
Boitsebiso ba motheo: FR4
Lera la Kantle W/S: 5/4mil
Lera le ka hare W/S: 4/5mil
Botenya: 3.0mm
Min.bophara ba lesoba: 0.3mm
Ts'ebetso e khethehileng: mohala oa taolo ea impedance ea 5 / 5mil


Lintlha tsa Sehlahisoa

Ke hobane'ng ha mapolanka PCB hloka impedance?

1. Boto ea potoloho ea PCBho nahana ka ho kenya le ho kenya lisebelisoa tsa elektronike, hamorao ho kenngoa ha patch ea SMT ho boetse ho hloka ho nahana ka conductivity le ts'ebetso ea phetisetso ea matšoao le litaba tse ling, kahoo e tla hloka hore ho be le impedance e tlaase kamoo ho ka khonehang.

2. PCB potoloho boto ka tshebetso ya tlhahiso ea koporo deposition, tin plating (kapa electroless plating, chesang spray tin), soldering le mekhoa e meng, thepa e sebelisoang e lokela ho hloka resistivity tlaase, ho etsa bonnete ba hore kakaretso impedance boleng ba boto potoloho ho. kopana le litlhoko tsa boleng ba sehlahisoa, e le ho sebetsa ka mokhoa o tloaelehileng.

3. PCB oa potoloho boto thini plating ke ka ho fetisisa le tsekamelo ea ho mathata ka tlhahiso eohle oa potoloho boto, ke lehokelo senotlolo amang impedance;sekoli lona kholo ka ho fetisisa ke oxidation bonolo kapa deliquescence, brazing futsanehileng, e le hore boto oa potoloho ho le thata ho solder, impedance e phahameng haholo, ho fella ka conductivity e futsanehileng kapa tshebetso e sa tsitsang ea boto kaofela.

4. Mokhanni ka har'a boto ea potoloho ea PCB e tla ba le phetiso e fapaneng ea matšoao, mohala ka boeona ka lebaka la etching, botenya ba laminate, bophara ba terata le lintlha tse ling, e tla etsa hore boleng ba impedance bo fetohe, ho etsa hore pontšo e sothe, e lebisang ts'ebetsong ea ts'ebetso. boto ea potoloho e fokotseha, kahoo hoa hlokahala ho laola boleng ba impedance ka har'a mefuta e itseng.


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