CNZHJ cov ntawv ci tooj liab muaj cov khoom siv hluav taws xob zoo heev, siab purity, zoo precision, tsawg oxidation, zoo tshuaj tiv thaiv, thiab yooj yim etching. Nyob rau tib lub sijhawm, txhawm rau ua kom tau raws li kev xav tau ntawm cov neeg siv khoom sib txawv, CNZHJ tuaj yeem txiav cov ntawv ci tooj liab rau hauv cov ntawv, uas tuaj yeem txuag cov neeg siv khoom ntau ntawm cov nqi ua haujlwm.
Covpom duabntawm cov ntawv ci tooj liab thiab cov duab electron microscope scanning yog raws li hauv qab no:
Thickness thiab hnyav ntawm tooj liab ntawv ci(Tshaj tawm los ntawm IPC-4562A)
Cov tooj liab tuab ntawm PCB tooj liab-clad board feem ntau yog qhia hauv imperial ounces (oz), 1oz = 28.3g, xws li 1/2oz, 3/4oz, 1oz, 2oz. Piv txwv li, thaj tsam ntawm 1oz / ft² yog sib npaug rau 305 g / ㎡ hauv metric units. , hloov los ntawm tooj liab ntom (8.93 g / cm²), sib npaug rau lub thickness ntawm 34.3um.
Lub ntsiab lus ntawm tooj liab ntawv "1/1": ib daim ntawv tooj liab nrog thaj tsam ntawm 1 square feet thiab qhov hnyav ntawm 1 ooj; kis 1 ooj ntawm tooj liab sib npaug ntawm lub phaj nrog thaj tsam ntawm 1 square feet.
Thickness thiab hnyav ntawm tooj liab ntawv ci
☞ED, Electrodeposited copper foil (ED copper foil), hais txog tooj liab ntawv ua los ntawm electrodeposition. Cov txheej txheem tsim khoom yog txheej txheem electrolysis. Cov khoom siv hluav taws xob feem ntau siv cov khoom siv saum npoo av ua los ntawm cov khoom siv titanium raws li cov menyuam cathode, zoo soluble lead-raws li alloy lossis insoluble titanium-based corrosion-resistant txheej raws li anode, thiab sulfuric acid ntxiv ntawm cathode thiab anode. Copper electrolyte, nyob rau hauv qhov kev txiav txim ntawm ncaj qha tam sim no, muaj hlau tooj liab ions adsorbed ntawm cathode cov menyuam los ua electrolytic thawj ntawv nyiaj. Raws li cov cathode cov menyuam txuas ntxiv tig, cov ntawv ci tsim tawm tsis tu ncua yog adsorbed thiab tev tawm ntawm cov menyuam. Tom qab ntawd nws yog ntxuav, qhuav, thiab qhov txhab nyob rau hauv ib tug yob ntawm raw ntawv ci. Lub purity ntawm tooj liab yog 99.8%.
☞RA, Rolled annealed tooj liab ntawv ci, yog muab rho tawm los ntawm tooj liab ore los tsim blister tooj liab, uas yog smelted, tiav, electrolytically purified, thiab ua rau hauv tooj liab ingots txog 2 hli tuab. Cov tooj liab ingot yog siv los ua cov khoom siv hauv paus, uas yog pickled, degreased, thiab kub dov thiab dov (nyob rau hauv qhov kev taw qhia ntev) ntawm qhov kub siab tshaj 800 ° C rau ntau zaus. Purity 99.9%.
☞ HTE, kub kub elongation electrodeposited tooj liab ntawv ci, yog cov ntawv ci tooj liab uas tuav cov elongation zoo heev ntawm qhov kub siab (180 ° C). Ntawm lawv, elongation ntawm tooj liab ntawv ci nrog tuab ntawm 35μm thiab 70μm ntawm qhov kub thiab txias (180 ℃) yuav tsum tau khaws cia ntawm ntau tshaj 30% ntawm elongation ntawm chav tsev kub. Kuj hu ua HD copper foil (high ductility copper foil).
☞ DST, ob sab kev kho mob tooj liab ntawv ci, roughens ob qho tib si du thiab ntxhib nto. Lub hom phiaj tseem ceeb tam sim no yog txo cov nqi. Roughening tus du nto yuav txuag tau cov tooj liab nto kho thiab browning cov kauj ruam ua ntej lamination. Nws tuaj yeem siv los ua cov txheej sab hauv ntawm cov ntawv ci tooj liab rau ntau txheej boards, thiab tsis tas yuav tsum tau browned (blackened) ua ntej laminating ntau txheej boards. Qhov tsis zoo yog qhov tooj liab nto yuav tsum tsis txhob khawb, thiab nws nyuaj rau tshem tawm yog tias muaj kab mob. Tam sim no, daim ntawv thov ntawm ob-sided kho tooj liab ntawv ci yog maj mam txo.
☞ UTF, ultra nyias tooj liab ntawv ci, hais txog tooj liab ntawv ci nrog lub thickness tsawg dua 12μm. Cov feem ntau yog tooj liab foils hauv qab 9μm, uas yog siv rau cov ntawv luam tawm Circuit Court boards rau kev tsim zoo circuits. Vim tias tsis tshua muaj cov ntawv ci tooj liab yog qhov nyuaj rau kev lis kev cai, nws feem ntau txhawb nqa los ntawm cov cab kuj. Cov khoom siv muaj xws li tooj liab ntawv ci, aluminium ntawv ci, organic zaj duab xis, thiab lwm yam.
| Copper foil code | Feem ntau siv cov lis dej num | Metric | Imperial | |||
| Nyhav ib cheeb tsam (g / m²) | Nominal thickness (μm) | Nyhav ib cheeb tsam (oz/ft²) | Nyhav ib cheeb tsam (g / 254in²) | Nominal thickness (10-³in) | ||
| E | 5m ua | 45.1 ib | 5.1 | 0.148 ib | 7.4 ib | 0.2 |
| Q | 9m ua | 75.9 ua | 8.5 | 0.249 ib | 12.5 ib | 0.34 ib |
| T | 12m ib | 106.8 ib | 12 | 0.35 Nws | 17.5 Nws | 0.47 ib |
| H | 1/2 oz | 152.5 ib | 17.1 | 0.5 | 25 | 0.68 ib |
| M | 3/4 oz | 228.8 ib | 25.7 ib | 0.75 ib | 37.5 ib | 1.01 Nws |
| 1 | 1oz ib | 305.0 Nws | 34.3 ib | 1 | 50 | 1.35 Nws |
| 2 | 2oz ib | 6 10.0 | 68.6 ib | 2 | 100 | 2.70 ib |
| 3 | 3oz ib | 915.0 ua | 102.9 ib | 3 | 150 | 4.05 Nws |
| 4 | 4oz ib | 1220.0 Nws | 137.2 ib | 4 | 200 | 5.4 |
| 5 | 5oz ib | 1525.0 Nws | 171.5 ib | 5 | 250 | 6.75 ib |
| 6 | 6oz ib | 1830.0 Nws | 205.7 ib | 6 | 300 | 8.1 |
| 7 | 7oz ib | 2 135.0 | 240.0 Nws | 7 | 350 | 9.45 Nws |
| 10 | 10 oz | 3 050.0 | 342.9 ib | 10 | 500 | 13.5 Nws |
| 14 | 14oz ib | 4270.0 ib | 480.1 ib | 14 | 700 | 18.9 Nws |
