Hauv ntiaj teb ntawm cov khoom siv hluav taws xob, cov ntawv luam tawm Circuit Board (PCBs) ua lub luag haujlwm tseem ceeb hauv kev sib txuas thiab xa hluav taws xob ntau yam. Lawv yog cov caj qaum ntawm txhua yam khoom siv hluav taws xob, los ntawm smartphones mus rau kev siv tshuab. Thaum nws los txog rau kev tsim PCB rau ib qhov project, lub thickness ntawm cov tooj liab txheej yog ib qho tseem ceeb rau kev txiav txim siab. Hnyav tooj liab PCBs, tseem hu ua tuab tooj liab PCBs, tau dhau los ua neeg nyiam hauv kev them nqi tsheb vim lawv cov yam ntxwv tshwj xeeb thiab cov txiaj ntsig. Hauv tsab xov xwm no, peb yuav tham txog vim li cas thiaj xav txog qhov hnyav tooj liab PCBs rau koj qhov project siab tam sim no.
Heavy Copper PCB yog dab tsi?
Ib qho hnyav tooj liab PCB yog lub rooj tsav xwm hauv Circuit Court nrog ib txheej tooj liab txawv txawv, feem ntau tshaj 3 ounces ib square feet (oz / ft²). Los ntawm kev sib piv, tus qauv PCBs feem ntau muaj cov txheej tooj liab ntawm 1 oz / ft². Hnyav tooj liab PCBs yog siv rau hauv cov ntawv thov uas xav tau tam sim no siab, lossis lub rooj tsav xwm xav tau los tiv thaiv kev siv tshuab thiab thermal.
Cov txiaj ntsig ntawm Heavy Copper PCBs
l Muaj peev xwm tam sim no
Lub thickness ntawm tooj liab txheej nyob rau hauv ib tug hnyav tooj liab PCB tso cai rau ib tug ntau dua tam sim no muaj peev xwm. Qhov no ua rau nws zoo tagnrho rau kev siv hluav taws xob siab xws li cov khoom siv hluav taws xob, cov tswj lub cev muaj zog, thiab cov khoom siv hauv tsev. Hnyav tooj liab PCBs tuaj yeem nqa mus txog 20 amps lossis ntau dua, piv rau tus qauv 5-10 amps ntawm PCB li niaj zaus.
l Thermal Management
Hnyav tooj liab PCBs paub txog lawv cov kev tswj xyuas thermal zoo heev. Lub thicker tooj liab txheej tso cai rau kom zoo dua tshav kub dissipation, txo txoj kev pheej hmoo ntawm overheating thiab tivthaiv tsis ua hauj lwm. Qhov no ua rau lawv zoo tagnrho rau cov ntawv thov uas xav tau lub zog siab thiab tsim kom muaj cua sov ntau.
l Durability
Hnyav tooj liab PCBs muaj zog thiab ruaj khov dua li cov qauv PCBs. Lub thicker tooj liab txheej muab kev txhawb zog zoo dua qub, ua rau lawv tiv taus kev puas tsuaj los ntawm kev vibration, poob siab, thiab khoov. Qhov no ua rau lawv zoo tagnrho rau ib puag ncig hnyav thiab cov ntawv thov kev lag luam.
l Nce Flexibility
Hnyav tooj liab PCBs muab kev tsim kom yooj yim dua piv rau cov qauv PCBs. Lub thicker tooj liab txheej tso cai rau ntau txoj kev thiab compact tsim, txo qhov loj ntawm lub rooj tsavxwm. Qhov no ua rau lawv zoo tagnrho rau cov ntawv thov uas qhov chaw txwv.
l Lub teeb liab zoo dua
Cov txheej tooj liab thicker hauv hnyav tooj liab PCBs muab cov teeb liab zoo dua. Qhov no txo qhov kev pheej hmoo ntawm cov teeb liab poob thiab cuam tshuam, uas ua rau muaj kev txhim khu kev qha ntau dua thiab ua haujlwm tau zoo.
Copper thickness tsim rau Heavy Copper PCB?
Vim lub thickness ntawm tooj liab nyob rau hauv hnyav tooj liab PCB yog tuab ces ib txwm FR4 PCB, ces nws yog ib qho yooj yim mus yuav warped yog hais tias tus tooj liab thickness tsis sib haum nyob rau hauv symmetrical khaubncaws sab nraud povtseg. Piv txwv li, yog tias koj tab tom tsim ib qho 8 txheej hnyav tooj liab PCB, ces cov tooj liab tuab hauv txhua txheej yuav tsum ua raws li L8 = L1, L7 = L2, L6 = L3, L5 = L4 tus qauv.
Tsis tas li ntawd, kev sib raug zoo ntawm qhov tsawg kawg nkaus kab qhov chaw thiab qhov dav ntawm txoj kab tsawg kawg nkaus kuj yuav tsum tau txiav txim siab, ua raws li txoj cai tsim yuav pab ua kom du thiab ua kom lub sij hawm luv luv. Hauv qab no yog cov kev cai tsim ntawm lawv, LS hais txog kab qhov chaw thiab LW hais txog kab dav.
Laum qhov kev cai rau hnyav tooj liab board
Ib tug plated los ntawm lub qhov (PTH) nyob rau hauv lub Circuit Court board yog txuas rau sab saum toj thiab hauv qab sab kom lawv hluav taws xob. Thiab thaum PCB tsim muaj ntau txheej tooj liab, qhov tsis sib xws ntawm qhov yuav tsum tau ua tib zoo txiav txim siab, tshwj xeeb tshaj yog lub qhov taub.
Hauv Cov Tshuab Zoo Tshaj Plaws, qhov tsawg kawg nkaus PTH txoj kab uas hla yuav tsum yog>= 0.3mm thaum lub nplhaib tooj liab annular yuav tsum yog 0.15mm tsawg kawg. Rau phab ntsa tooj liab thickness ntawm PTH, 20um-25um raws li lub neej ntawd, thiab siab tshaj 2-5OZ (50-100um).
Basic Parameters ntawm Heavy Copper PCB
Nov yog qee qhov tseem ceeb ntawm cov tooj liab PCB hnyav, vam tias qhov no tuaj yeem pab koj kom nkag siab qhov zoo tshaj plaws Technology lub peev xwm zoo dua.
l Khoom siv: FR4
l Copper thickness: 4 OZ ~ 30 OZ
l Heavy Copper: 20 ~ 200 OZ
l Daim ntawv qhia: Routing, xuas nrig ntaus, V-txiav
l Solder daim npog qhov ncauj: Dawb / Dub / Xiav / Ntsuab / Liab Roj (Solder daim npog qhov ncauj luam ntawv tsis yooj yim nyob rau hauv hnyav tooj liab PCB.)
l Nto xov: Immersion Kub, HASL, OSP
l Max vaj huam sib luag loj: 580 * 480mm (22.8 "* 18.9")
Kev siv ntawm Heavy Copper PCBs
Hnyav tooj liab PCBs yog siv rau ntau yam kev siv, suav nrog:
l Cov khoom siv fais fab
l Motor controllers
l Muaj tshuab
l Automotive electronics
l Aerospace thiab kev tiv thaiv systems
l Hnub ci inverter
l LED teeb pom kev zoo
Xaiv qhov zoo PCB thickness yog qhov tseem ceeb rau kev ua tiav ntawm txhua qhov haujlwm. Hnyav tooj liab PCBs muaj cov yam ntxwv tshwj xeeb thiab cov txiaj ntsig uas ua rau lawv zoo tagnrho rau kev siv hluav taws xob siab thiab kub kub. Yog tias koj xav kom muaj kev ntseeg siab thiab ua tau zoo ntawm koj qhov project, xav txog kev siv tooj liab PCBs hnyav. Technology zoo tshaj plaws muaj ntau tshaj li 16 xyoo kev tsim khoom hauv hnyav tooj liab PCBs, yog li peb muaj kev ntseeg siab tias peb tuaj yeem yog koj tus neeg muag khoom ntseeg siab tshaj plaws hauv Suav teb. Txais tos tiv tauj peb txhua lub sijhawm rau cov lus nug lossis cov lus nug txog PCBs.