Lub rooj tsav xwm luam tawm yog cov khoom siv uas muaj lub hauv paus dielectric thiab tooj liab conductors, uas tau muab tso rau ntawm lub hauv paus hauv daim ntawv ntawm cov khoom siv hlau. Nws muab kev sib txuas ntawm txhua lub xov tooj cua-electronic hauv Circuit Court.
Lub rooj tsav xwm luam tawm muaj ntau qhov zoo piv rau qhov ntim (hinged) mounting siv cov cables thiab cov xov hlau:
- high-density mounting ntawm cov khoom siv hauv xov tooj cua thiab lawv cov kev sib txuas, ua rau txo qhov loj thiab qhov hnyav ntawm cov khoom;
- tau txais cov khoom siv hluav taws xob thiab thaiv qhov chaw, nrog rau cov xov tooj cua hauv ib lub voj voog thev naus laus zis;
- stability, repeatability ntawm cov yam ntxwv xws li capacitance, conductivity, inductance;
- kev kub ceev thiab suab nrov tiv thaiv ntawm circuits;
- tawm tsam rau txhua yam thiab huab cua cuam tshuam;
- qauv thiab kev sib koom ua ke ntawm kev siv thev naus laus zis thiab tsim kev daws teeb meem;
- kev cia siab ntawm cov nodes, thaiv thiab lub cuab yeej nws tus kheej tag nrho;
- nce manufacturability raws li qhov nyuaj automation ntawm kev sib dhos ua haujlwm thiab kev tswj thiab kev hloov kho;
- qiskev siv zog, khoom siv siv thiab tus nqi.
PCB kuj muaj qhov tsis zoo, tab sis muaj tsawg heev ntawm lawv: txwv kev tswj xyuas thiab qhov nyuaj ntawm kev ntxiv cov qauv hloov pauv.
Cov ntsiab lus ntawm cov laug cam xws li: lub hauv paus dielectric, txheej txheej metallized, uas yog cov qauv ntawm cov ntawv luam tawm, cov ntaub ntawv tiv tauj; kho thiab mounting qhov.
Yuav tsum tau rau cov khoom no GOST
- Cov ntawv luam tawm hauv Circuit Court yuav tsum muaj cov dielectric puag hauv cov xim, uas yuav tsum yog monolithic hauv cov qauv, tsis muaj cov npuas sab hauv, plhaub, txawv teb chaws suav nrog, tawg, chips, delaminations. Txawm li cas los xij, ib qho kev khawb ib leeg, cov hlau txuas ntxiv, cov cim ntawm ib qho kev tshem tawm ntawm ib qho chaw uas tsis tau tso cai, nrog rau kev tshwm sim ntawm cov qauv uas tsis hloov cov hluav taws xob tsis zoo ntawm cov khoom, tsis txo qhov kev ncua deb ntawm lub ntsiab ntawm cov khoom. qauv.
- Tus qauv yog qhov tseeb, nrog tus ntug du, tsis muaj qhov o, tearing, delamination, cov cuab yeej cim. Cov me me hauv zos mordants raug tso cai, tab sis tsis pub ntau tshaj tsib dots ib square decimeter, yog tias qhov seem ntawm txoj kab dav ua raws li qhov tsawg kawg nkaus tso cai; khawb txog li rau millimeters ntev thiab mus txog 25 microns tob.
txhawm rau txhim kho cov yam ntxwv ntawm corrosion thiab ua kom muaj zog, qhov saum npoo ntawm lub rooj tsavxwm yog coated nrog electrolytic muaj pes tsawg leeg, uas yuav tsum tau tas li, tsis muaj delamination, ruptures thiab kub hnyiab. Kho thiab mounting qhov yuav tsum tautxoj hauj lwm raws li daim duab kos. Nws raug tso cai kom muaj qhov sib txawv ntawm qhov tseeb ntawm pawg thawj coj saib. Txhawm rau txhim kho kev ntseeg tau ntawm kev sib txuas, ib txheej ntawm tooj liab yog txau rau txhua qhov chaw sab hauv ntawm lub qhov mounting, qhov tuab ntawm qhov yuav tsum yog tsawg kawg 25 microns. Cov txheej txheem no hu ua qhov plating.
qib PCB yog dab tsi? Lub tswv yim no txhais tau tias cov chav kawm raug ntawm kev tsim khoom, lawv tau muab los ntawm GOST 23751-86. Nyob ntawm qhov ceev ntawm cov qauv, cov ntawv luam tawm Circuit Board muaj tsib chav kawm raug, qhov kev xaiv yog txiav txim siab los ntawm qib ntawm cov cuab yeej kev lag luam. Cov chav kawm thawj thiab thib ob tsis xav tau cov cuab yeej ua haujlwm siab thiab suav tias pheej yig los tsim khoom. Qib plaub thiab qib tsib xav tau cov ntaub ntawv tshwj xeeb, cov cuab yeej tshwj xeeb, kev huv huv zoo meej hauv cov chaw tsim khoom, cua txias, thiab kev saib xyuas qhov kub thiab txias. Cov tuam txhab lag luam hauv tsev tsim cov khoom lag luam luam tawm ntawm cov chav kawm raug thib peb.
