Kev tswj tus kab mob siab PCB
1. Muab khoom piav qhia
Specification
Kev tswj tus kab mob siab PCB
Txheej: 2
Thickness: 1.6 + / - 0.1 hli
Qhov Coob: 108.82 hli * 88.56 hli
Siv pawg thawj coj: FR4.
Lub aperture qis tshaj: 0.3 hli.
Kev kho qhov hauv npoo: kub-plated.
Cov cuab yeej tshwj xeeb: tswj kev tswj hwm
Uniwell muaj kev nplua nuj nyob hauv qhov chaw tua kab mob PCB,
100% phim tus neeg yuav tsum ua kom tau zoo.
2.Nyob rau hauv Uniwell
1) Uniwell muaj nyob rau hauv 2007, Intech yog ib lub Professional PCB chaw tsim tshuaj paus los ntawm Shenzhen ntawm Tuam Tshoj, uas muaj ob ceg SHENZHEN UNIWELL CIRCUITS CO., LTD. thiab Jiangmen UNIWELL CIRCUITS CO., LTD.
2) tau ntsib ntau tshaj plaws hauv lub xeev cov qauv tsim los ntawm kev pom zoo rau cov ntawv pov thawj zoo: ISO9001, ISO14001, TS16949. Peb yog UL cov ntawv pov thawj rau ib sab, ob tog sib sau ua ke thiab Multilayer PCB, thiab ua raws li tag nrho cov kev cai rau IPC thiab ROHS cov qauv.
3) 40% ntawm peb kev muag khoom yog muag muag thiab xa mus rau Tebchaws Europe, United United States thiab Asian.
4) Feem ntau peb cov laug cam yog siv EMS, industrial, power, kev kho mob thiab lwm yam khoom.
3.Uniwell qhov ua tau zoo:
1) Peb ua PCB los ntawm ob tog mus txog 40-txheej Multilayer PCB, Cov hauj lwm HDI.
2) Yog tias koj tau txiav txim dua los ntawm lwm tus neeg muag khoom, thiab koj xav hloov mus rau Uniwell, peb yuav muab cov nqi zoo tshaj.
3) Tsuas yog cov kev pabcuam zoo thiab ua haujlwm zoo xwb, peb kuj them txhua yam kev qhia rau peb cov neeg muas zaub, xws li pob ntawv siv cov khoom ntim thiab cov dej noo noo rau hauv lub hnab ntim khoom tiv thaiv kom tiv thaiv PCB.
4) Khoom: Peb muaj FR4 TG135 / TG158 / TG180normal khoom hauv Tshuag, kuj muaj CEM3 / ROGERS / ARLON / ISOLA
5) Rigid / flex / flexibile PCBs nrog UL pom zoo.
6) Saj sai, sai tswv yim rau cov neeg tuaj noj nyiaj ib txwm.
7) Ceev nrooj yuav muaj tsawg dua 4 teev, Ib txhia sab saum toj nug peb tuaj yeem muab pub rau hauv 1 teev.
4. Cov ntawv pov thawj
5.Packaging & xa
Npaj raws li txheej txheem:
Kev xa
Peb feem ntau yog nkoj los ntawm DHL, FEDEX, UPS, TNT, peb kuj tuaj yeem los ntawm cov neeg xav tau.
6.Luag tshaj paub --- Muaj kev tswj hwm tus kheej
Dab tsi yog impedance?
Impedance yog ua ke ntawm lub capacitance thiab inductance ntawm Circuit Court thaum ua haujlwm nyob rau hauv high zaus. Tab sis kuj tau ntsuas hauv Ohms, nws txawv me ntsis txawv ntawm kev ua haujlwm uas yog DC yam ntxwv. Impedance yog tus cwj pwm AC, txhais tau hais tias nws muaj feem xyuam rau zaus, tsis kam.
Dab tsi yog tswj hwm impedance?
Tshwj tsis yog tias koj tau tsim ib qhov cim tseg thiab qhov chaw nyob, impedance feem ntau yog "tswj tsis tau", lub ntsiab lus tias impedance yuav txawv ntawm qhov taw tes mus rau qhov taw qhia raws kab.
Thaum muaj qhov siab, cov khoom siv PCB tsis coj zoo li kev sib txuas lus yooj yim, kev tswj hwm kev tswj hwm pab peb kom paub meej tias cov teeb meem tsis muaj teeb meem raws li lawv txoj kev ncig ntawm PCB.
Qhov tseem ceeb, kev tswj hwm tus kheej yog qhov sib txuam ntawm cov khoom siv hauv cov khoom siv nrog qhov cim qhov ntev thiab qhov chaw kom paub meej tias lub impedance ntawm ib lub cim qhov cim tseg yog hauv ib qho feem pua ntawm ib qho nqi. Kev tswj cov kab hlau impedance muab kev ua haujlwm siab dua.
Thaum twg siv tswj kev tswj hwm
Thaum lub teeb liab yuav tsum muaj ib qho impedance rau kev ua haujlwm kom zoo, kev tswj hwm yuav tsum raug siv. Hauv kev siv ntau qhov sib txawv txuam tus PCB cov cim cia yog qhov tseem ceeb ntawm kev tuav pov hwm cov ntaub ntawv thiab cov teeb liab meej. Yog hais tias lub impedance ntawm PCB kab sib txuas txuas ob yam khoom tsis ua raws li Cheeb Tsam tus yam ntxwv ntawm impedance, tej zaum yuav muaj sij hawm hloov ntau dua hauv lub cuab yeej los yog hauv Circuit Court. Tej zaum kuj yuav raug yuam kev.
Dab tsi txiav txim siab tswj hwm tus kheej?
Tus yam ntxwv impedance ntawm PCB qhov cim tseg yog feem ntau txiav txim siab los ntawm nws txoj kev ua kom muaj zog thiab kev muaj peev xwm, kev ua haujlwm, thiab kev coj ua. Cov cwj pwm no yog kev ua haujlwm ntawm lub cev qhov dav, qhov dielectric qhov ntawm PCB substrate khoom, thiab dielectric thickness. Feem ntau PCB kab kev tsis sib haum yuav muaj peev xwm pib ntawm 25 mus rau 125 ohms. Tus nqi impedance generated los ntawm PCB tus qauv yuav txiav txim tau los ntawm cov nram qab no:
- dav thiab thickness ntawm tooj liab teeb kab (saum thiab hauv qab)
- tuab ntawm cov tub ntxhais kawm los yog cov ntaub ntawv prepreg rau ntawm ib sab ntawm txoj hlua tooj liab
- dielectric qhov tseem ceeb ntawm cov tub ntxhais kawm thiab prepreg khoom
- nrug ntawm lwm cov qauv nta
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