Copper foil yog ib qho tseem ceeb ntawm cov khoom siv raw hauv kev tsim cov ntawv luam tawm Circuit Court boards, uas ua lub luag haujlwm hauv kev ua hluav taws xob hluav taws xob thiab cuam tshuam ncaj qha rau hluav taws xob kev ua tau zoo, txhua yam muaj zog, thiab kev ntseeg siab ntawm cov ntawv luam tawm Circuit Board. Nrog rau txoj kev loj hlob ntawm cov tshuab hluav taws xob mus rau miniaturization, siab ceev, thiab kev ua haujlwm siab, kev ua tau zoo ntawm cov ntawv ci tooj liab tau dhau los ua nruj heev. Raws li cov txheej txheem ntau lawm, cov yam ntxwv ua tau zoo, thiab cov ntawv thov, cov ntawv ci tooj liab rau cov ntawv luam tawm tuaj yeem muab faib ua ntau pawg.
1, cais los ntawm cov txheej txheem ntau lawm
(1) Electrolytic tooj liab ntawv ci
Electrolytic tooj liab ntawv ci yog tam sim no feem ntau siv hom tooj liab ntawv ci nyob rau hauv luam ntawv Circuit Court board manufacturing. Cov txheej txheem ntau lawm tsuas yog siv electrolysis, nrog cov tooj liab ntshiab raws li cov anode thiab stainless hlau los yog titanium phaj raws li cathode. Lub anode tooj liab yog electrolyzed nyob rau hauv ib tug sib tov electrolyte ntawm tooj liab sulfate thiab sulfuric acid, thiab tooj liab ions yog tso rau ntawm lub cathode nto rau daim ntawv tooj liab.
Electrolytic copper foil muaj qhov zoo ntawm kev ua haujlwm siab, tus nqi qis, thiab loj - nplai ntau lawm. Raws li cov txheej txheem kev kho deg sib txawv, electrolytic tooj liab ntawv ci tuaj yeem muab faib ua ib qho -sab photoelectrochemical copper foil thiab ob npaug -sided photoelectrochemical tooj liab ntawv ci. Ib sab ntawm ib qho -sab photoelectrode tooj liab ntawv ci yog du, thaum lwm sab muaj ib tug ntxhib ntxhib nto. Lub adhesion ntawm qhov ntxhib saum npoo thiab insulating substrate muaj zog dua, thiab nws feem ntau yog siv rau txheej txheej sab hauv ntawm ntau- txheej luam ntawv Circuit Court boards; Ob chav -sided photoelectrode tooj liab ntawv ci muaj qhov chaw du ntawm ob sab thiab qis nto roughness, ua rau nws tsim nyog rau cov ntawv luam tawm Circuit Court boards nrog siab - zaus thiab siab -ceev teeb liab kis tau tus mob. Nws tuaj yeem txo cov teeb liab kis tsis tau thiab impedance.
Txawm li cas los xij, electrolytic tooj liab ntawv ci kuj muaj qee yam kev txwv. Vim tias qhov tsis sib xws ntawm cov qoob loo loj hlob thaum nws cov txheej txheem tsim khoom, qhov ductility thiab khoov tsis kam ntawm cov ntawv ci tooj liab yog qhov tsis zoo, thiab nws ua haujlwm tsis zoo hauv qee qhov kev thov uas yuav tsum tau ua kom yooj yim.
(2) Rolled tooj liab ntawv ci
Rolled tooj liab ntawv ci yog tsim los ntawm ntau zaus dov thiab annealing tooj liab ingots. Thaum lub sij hawm dov txheej txheem, tooj liab atoms yog teem raws li dov kev taw qhia los ua ib tug kuj ntom microstructure, uas muab cov dov tooj liab ntawv ci zoo heev yooj, siab ductility, thiab zoo bending kuj.
Piv nrog rau electrolytic tooj liab ntawv ci, qhov saum npoo ntawm dov tooj liab ntawv ci yog smoother thiab smoother, thiab cov nto roughness feem ntau qis dua li ntawm electrolytic tooj liab ntawv ci. Qhov no ua rau nws ua tau zoo txo cov teeb meem kev xav thiab poob thaum lub sij hawm siab - zaus teeb liab kis tau tus mob, ua rau nws tsim nyog rau kev tsim high- zaus, siab- ceev luam ntawv Circuit Court boards thiab hloov tau yooj yim circuit boards. Hauv cov khoom siv hluav taws xob hloov tau yooj yim xws li cov xov tooj uas siv tau thiab cov khoom siv siv tau, dov tooj liab ntawv ci, nrog nws txoj kev yooj yim heev, tuaj yeem ua tau raws li cov kev xav tau rov qab khoov ntawm cov laug cam, ua kom muaj kev ruaj ntseg thiab kev ntseeg siab ntawm lub voj voog.
Txawm li cas los xij, cov txheej txheem ntau lawm ntawm cov ntawv yob tooj liab yog qhov nyuaj, lub voj voog ntau lawm ntev, thiab cov cuab yeej siv peev txheej loj, ua rau cov nqi siab thiab txwv nws daim ntawv thov hauv qee cov nqi rhiab luam tawm cov khoom lag luam.
2, Classified los ntawm thickness
(1) Thick tooj liab ntawv ci
Copper foil nrog lub thickness ntau dua 105 μ m feem ntau yog hu ua tuab tooj liab ntawv ci. Cov ntawv ci tooj liab muaj peev xwm nqa tau tam sim no thiab tuaj yeem tiv taus cov dej ntws loj, ua rau nws tsim nyog rau cov ntawv luam tawm Circuit Board scenarios uas yuav tsum tau muaj kev sib kis tam sim no, xws li siab - fais fab mov circuits, fais fab roj teeb tswj tshuab hauv tsheb hluav taws xob, thiab cov khoom siv hluav taws xob hauv kev lag luam. Hauv cov ntawv thov no, cov ntawv ci tooj liab tuab tuaj yeem txo cov kab tsis kam, txo cov hluav taws kub, thiab txhim kho kev ntseeg siab thiab ruaj khov. Tsis tas li ntawd, cov ntawv ci tooj liab tuab kuj muaj lub zog zoo txhua yam, uas tuaj yeem txhim kho qhov rigidity ntawm cov ntawv luam tawm Circuit Board thiab tsim nyog rau cov khoom lag luam uas xav tau kev ua haujlwm siab.
(2) Pa thickness tooj liab ntawv ci
Copper foil nrog ib lub thickness ntawm 18 μ m thiab 105 μ m belongs rau cov pa thickness tooj liab ntawv ci, uas kuj yog cov feem ntau siv tooj liab ntawv ci thickness ntau yam nyob rau hauv luam Circuit Court board manufacturing. Cov pa tuab ntawm cov ntawv ci tooj liab sib npaug ntawm cov khoom siv hluav taws xob, kev ua haujlwm zoo, thiab cov nqi, thiab tuaj yeem ua tau raws li cov khoom siv hluav taws xob zoo tib yam, xws li cov khoom siv hluav taws xob, cov khoom siv sib txuas lus, cov khoom siv saib xyuas kev ruaj ntseg, thiab lwm yam.
(3) Nyias tooj liab ntawv nyiaj thiab ultra- ntawv ci tooj liab nyias
Copper foil nrog lub thickness tsawg dua 18 μ m yog hu ua nyias tooj liab ntawv ci, thaum tooj liab ntawv ci nrog thickness tsawg dua 9 μ m yog suav hais tias yog ultra-nyias tooj liab ntawv ci. With the development of electronic products towards miniaturization and high density, the requirements for printed circuit board wiring density and signal transmission speed are becoming increasingly high, and the application of thin copper foil and ultra-thin copper foil is becoming more and more widespread. Lawv tuaj yeem ua tiav cov kab dav dav thiab qhov sib txawv, txhim kho cov xov hlau ntom ntom ntawm cov ntawv luam tawm, thiab ua tau raws li cov kev xav tau ntawm cov khoom siv hluav taws xob me me. Lub caij no, nyias cov ntawv ci tooj liab thiab ultra- cov ntawv ci tooj liab nyias nyias muaj qhov qis ntawm qhov roughness thiab kev ua tau zoo dua hauv siab - zaus thiab siab -ceev teeb liab kis tau tus mob. Lawv feem ntau yog siv rau hauv kev tsim hluav taws xob hauv Circuit Court rau high{11}}kawg smartphones, server motherboards, high{12}}cov cuab yeej sib txuas lus ceev, thiab lwm yam khoom siv uas yuav tsum tau muaj kev ntseeg siab heev. Txawm li cas los xij, kev ua haujlwm nyuaj ntawm cov ntawv ci tooj liab nyias thiab ultra- ntawv ci tooj liab yog qhov siab, xav tau cov txheej txheem ntau lawm thiab cov khoom siv, thiab nws yuav ua rau tawg, wrinkling, thiab lwm yam teeb meem thaum lub sij hawm tsim khoom, yuav tsum tau tswj kom nruj dua.
3, Muab faib los ntawm cov txheej txheem kho saum npoo
(1) Cov ntawv ci tooj liab
Qhov saum npoo ntawm cov ntawv ci tooj liab tsis tau txais kev kho tshwj xeeb, nthuav tawm lub ntuj ci ntawm tooj liab thiab ib qho chaw du thiab tiaj tus. Cov ntawv ci tooj liab no feem ntau yog siv rau hauv cov xwm txheej uas yuav tsum tau muaj qhov zoo ntawm qhov chaw thiab tsis tas yuav tsum muaj kev sib txuas tshwj xeeb nrog cov substrate, xws li qee qhov tshwj xeeb zoo nkauj Circuit Court boards los yog cov ntawv luam tawm uas yuav tsum tau muaj cov teeb liab kis tau zoo thiab siv cov txheej txheem sib txuas tshwj xeeb. Qhov zoo ntawm cov ntawv ci tooj liab yog qhov tsis zoo ntawm qhov roughness thiab tsis tshua muaj teeb liab kis tau tus mob. Txawm li cas los xij, vim nws qhov kev ua haujlwm tsis zoo, nws lub zog sib txuas nrog cov insulating substrate kuj tsis muaj zog, yuav tsum tau siv cov khoom sib txuas ua haujlwm siab lossis cov txheej txheem tshwj xeeb los ua kom muaj zog ntawm kev sib txuas.
(2) Roughened tooj liab ntawv ci
Coarse copper foil yog tsim los ntawm electrochemical los yog tshuaj kho mob rau ntawm qhov chaw ntawm cov ntawv ci tooj liab los tsim cov microstructure ntxhib. Qhov saum npoo ntxhib no tuaj yeem ua rau thaj chaw sib txuas ntawm tooj liab thiab insulating substrate, txhim kho lawv lub zog sib txuas, thiab tiv thaiv cov ntawv ci tooj liab tev tawm thaum lub sij hawm luam tawm Circuit Board tsim lossis siv. Coarse copper foil yog hom kev kho deg uas siv ntau tshaj plaws hauv cov ntawv luam tawm hauv Circuit Court board manufacturing, dav siv nyob rau hauv ntau hom luam tawm Circuit board ntau lawm, tshwj xeeb tshaj yog multi- txheej luam ntawv Circuit Court boards thiab Circuit Court boards uas yuav tsum tau lamination txheej txheem. Raws li cov txheej txheem sib txawv roughening thiab qib, roughened tooj liab ntawv ci tuaj yeem muab faib ntxiv kom tau raws li qhov yuav tsum tau ua ntawm kev sib khi lub zog thiab kev ua haujlwm saum npoo ntawm cov ntawv thov sib txawv.
(3) Anti oxidation tooj liab ntawv ci
Anti oxidation tooj liab ntawv ci yog ib zaj duab xis nyias nrog cov khoom siv tiv thaiv oxidation, xws li organic anti oxidation zaj duab xis, npib tsib xee phosphorus alloy txheej, thiab lwm yam. Cov txheej ntawm zaj duab xis no tuaj yeem cais cov ntawv ci tooj liab los ntawm kev sib cuag nrog huab cua, tiv thaiv oxidation ntawm cov ntawv ci tooj liab thaum khaws cia thiab ua haujlwm, uas cuam tshuam rau nws cov hluav taws xob kev ua tau zoo thiab weldability. Anti oxidation tooj liab ntawv ci yog feem ntau siv nyob rau hauv lub sij hawm uas cia lub sij hawm ntev los yog stability ntawm tooj liab ntawv ci nto zoo, xws li luam ntawv Circuit Court board manufacturing rau export cov khoom, los xyuas kom meej tias tooj liab ntawv nyiaj tswj kev ua tau zoo thaum lub sij hawm thauj thiab cia.
4, Classified los ntawm daim ntawv thov teb
(1) Copper foil rau nruj luam ntawv Circuit Court board
Rigid printed circuit board yog hom ntau tshaj plaws ntawm cov ntawv luam tawm Circuit Board, dav siv hauv ntau yam khoom siv hluav taws xob. Copper foil rau rigid printed Circuit Board tuaj yeem xaiv raws li qhov yuav tsum tau ua thiab cov nqi siv nyiaj ntawm cov khoom, nrog rau cov txheej txheem ntau lawm, thicknesses, thiab txheej txheem kho saum npoo. Rau cov neeg siv khoom siv hluav taws xob zoo tib yam, qis- tus nqi electrolytic tooj liab ntawv ci nrog lub thickness xws li 18 μ m txog 35 μ m feem ntau yog siv; Rau siab -kev ua tau zoo server motherboards, kev sib txuas lus hauv paus chaw nres tsheb, thiab lwm yam., ob chav -sided optoelectronic copper foil los yog dov tooj liab ntawv ci uas tsis tshua muaj nto roughness thiab zoo teeb liab kis tau tus mob yuav raug xaiv kom tau raws li qhov yuav tsum tau ntawm high - zaus thiab siab -ceev teeb liab kis tau tus mob.
(2) Copper foil rau cov ntawv luam tawm yooj yim
Flexible printed circuit board (FPC) muaj cov yam ntxwv ntawm kev hloov pauv, foldable, thiab lub teeb yuag, thiab ua lub luag haujlwm tseem ceeb hauv kev tsim cov khoom siv hluav taws xob me me thiab hloov tau yooj yim. Cov ntawv ci tooj liab siv rau lub rooj tsav xwm hloov pauv tau yooj yim yog dov tooj liab ntawv ci, uas tuaj yeem hloov kho kom haum rau qhov kev xav tau ntawm FPC hauv cov ntawv thov sib txawv vim nws qhov yooj yim heev thiab khoov tsis kam. Tsis tas li ntawd, txhawm rau txhawm rau txhim kho qhov yooj yim thiab kev ntseeg siab ntawm FPC, qee qhov kev ua haujlwm tshwj xeeb yuav raug siv, xws li annealing lossis kev hloov kho saum npoo ntawm cov ntawv ci tooj liab, kom txo cov tawv tawv ntawm cov ntawv ci tooj liab, txhim kho nws yooj yim thiab qaug zog.
(3) Copper foil rau siab - zaus thiab siab - ceev luam ntawv Circuit Court board
Nrog rau kev txhim kho sai ntawm cov thev naus laus zis xws li 5G kev sib txuas lus, cov chaw khaws ntaub ntawv, thiab kev txawj ntse, qhov kev thov rau siab - zaus thiab siab - ceev luam ntawv Circuit Court boards yog nce zuj zus ib hnub. Copper foil rau siab - zaus thiab siab - ceev luam ntawv Circuit Court boards yuav tsum tsis tshua muaj deg roughness, zoo teeb liab kev ua tau zoo, thiab ruaj khov hluav taws xob kev ua tau zoo. Yog li ntawd, ob npaug -sided photoelectrode tooj liab ntawv ci los yog dov tooj liab ntawv ci nrog qhov tsawg nto roughness feem ntau yog xaiv, thiab cov txheej txheem tshwj xeeb nto yog siv, xws li txo qhov contour ntawm cov ntawv ci tooj liab, optimizing cov qauv siv lead ua ntawm cov ntawv ci tooj liab, thiab lwm yam, kom txo tau qhov poob thiab distortions thaum lub sij hawm teeb liab kis tau tus mob thiab ua tau raws li qhov yuav tsum tau muaj {9} siab -ceev teeb liab kis tau tus mob.