Qhib koj lub xov tooj, khoos phis tawj, lossis khoom siv hauv tsev, thiab lub rooj tsav xwm ntsuab uas muaj cov kab sib txuas sib txuas sab hauv yog "cov paj hlwb" uas txhawb nqa kev ua haujlwm ntawm cov khoom siv hluav taws xob - lub rooj tsav xwm Circuit Court.
Kauj Ruam 1: Pretreatment substrate
Lub hauv paus tseem ceeb ntawm lub rooj tsav xwm Circuit Court yog "tooj liab- clad laminate", uas zoo li "lub hauv paus" rau kev tsim lub tsev. Hom board no yog ua los ntawm epoxy resin iav daim ntaub nrog zoo heev rwb thaiv tsev kev ua tau zoo raws li cov tub ntxhais, them nrog ib tug nyias txheej ntawm ntshiab tooj liab ntawv ci ntawm ob sab, thiab tsim rau hauv ib lub tiaj board los ntawm high - kub nias. Ua ntej kev ua haujlwm raug cai, cov neeg ua haujlwm yuav xub txiav cov tooj liab- clad board rau hauv me me raws li qhov loj me, thiab tom qab ntawd siv cov cuab yeej tshwj xeeb los txhuam cov board, tshem tawm cov oxide txheej thiab cov stains ntawm cov ntawv ci tooj liab - cov kauj ruam no zoo li "rov qab" phab ntsa, uas tuaj yeem ua raws li cov qauv hauv qab no.
Tom ntej no, lub rooj tsavxwm yuav raug xa mus rau lub tshuab ntxuav kom sib sib zog nqus nrog cov tshuaj tov tshuaj, thiab tom qab ntawd ziab kom huv si kom paub meej tias qhov chaw qhuav thiab tsis muaj impurities. Lub sijhawm no, cov tooj liab-clad board zoo li lub "tooj liab canvas" huv si tos rau kev kos duab tom ntej ntawm cov qauv hauv Circuit Court.
Kauj ruam 2: Kab duab
Txhawm rau tsim cov kab hluav taws xob tsis zoo ntawm cov ntawv ci tooj liab, thawj kauj ruam yog "hloov" cov qauv Circuit Court predetermined mus rau lub rooj tsavxwm. Niaj hnub no, txoj hauv kev tseem ceeb yog qhov tseeb dua thiab siv tau LDI thev naus laus zis. Cov neeg ua haujlwm yuav thawj zaug sib npaug ntawm cov txheej txheem photosensitive resin rau saum npoo ntawm tooj liab-clad board. Cov khoom no yuav dhau los ua cov tshuaj tiv thaiv nyob rau hauv ib lub wavelength laser irradiation, hloov ntawm soluble mus insoluble.
Tom qab ntawd, cov coated board yuav raug xa mus rau LDI exposure tshuab. Tsis zoo li cov txheej txheem ib txwm muaj, LDI ncaj qha nyeem cov ntaub ntawv digital circuit thiab nthuav tawm lawv taw tes los ntawm taw tes rau ntawm lub rooj tsavxwm los ntawm siab - laser beams. Lub laser yuav precisely ua nyob rau hauv lub cheeb tsam uas lub Circuit Court yuav tsum tau tsim, cia ib feem ntawm lub photosensitive nplaum rau solidify; Cov cheeb tsam uas tsis tas yuav tsim cov kab yog tsis irradiated los ntawm laser, thiab cov photosensitive nplaum tseem soluble. Tom qab ua tiav tiav lawm, lub rooj tsavxwm yuav muab tso rau hauv ib qho kev daws teeb meem, thiab cov nplaum uas tsis muaj duab tsis zoo yuav raug yaj thiab ntxuav tawm, nthuav tawm cov ntawv ci tooj liab thaj tsam keeb kwm los ntawm cov nplaum txheej. Nyob rau ntawm lub sijhawm no, "contour" ntawm Circuit Court tau qhia meej meej, thiab piv rau cov txheej txheem ib txwm muaj, LDI thev naus laus zis tuaj yeem ua tiav qhov tseeb ntawm Circuit Court thiab zam qhov tsis raug thiab poob los ntawm lub cev zaj duab xis.
Kauj ruam 3: Etching thiab zaj duab xis tshem tawm
Lub rooj tsavxwm tsim muaj ob qho tib si kho photosensitive nplaum thiab raug tooj liab ntawv ci rau ntawm nws qhov chaw. Cov txheej txheem tom ntej "etching" yog tshem tawm cov ntawv nyiaj tsis xav tau. Cov neeg ua haujlwm yuav raus lub rooj tsavxwm rau hauv cov kua qaub etching, thiab cov ntawv ci tooj liab uas raug rau cov tshuaj tiv thaiv nrog cov tshuaj etching, maj mam yaj; Cov ntawv ci tooj liab npog los ntawm kev kho photosensitive nplaum yuav tiv thaiv zoo.
Thaum lub etching tiav lawm, tsuas yog lub voj voog uas muaj cov nplaum nplaum uas nyob hauv lub rooj tsavxwm. Nyob rau lub sijhawm no, nws yog ib qho tsim nyog yuav tau ua "zaj duab xis stripping" txheej txheem: muab lub rooj tsavxwm tso rau hauv cov yeeb yaj kiab stripping tov, thiab yav tas los kho photosensitive nplaum yuav yaj thiab tshem tawm, nthuav tawm cov ci tooj liab hauv qab no. Txij ntawm no mus, cov tub ntxhais ntawm lub rooj tsav xwm hauv Circuit Court - cov kab hluav taws xob - tau raug tsim los, thiab cov ntaub ntawv tseem ceeb ntawm tooj liab tau dhau los ua ib qho kev hla hla, meej thiab kev sib txuas lus sib txuas.
Kauj Ruam 4: Drilling thiab Copper Sinking
Rau cov pawg thawj coj saib xyuas uas xav tau ntau txheej txheej ntawm circuits (xws li feem ntau siv 4- txheej thiab 6-txheej boards hauv cov xov tooj ntawm tes thiab khoos phis tawj), nws tseem yuav tsum tau txuas cov circuits ntawm cov txheej txheem sib txawv. Ua ntej, cov neeg ua haujlwm yuav siv cov tshuab ua haujlwm siab drilling los tho qhov me me ntawm lub rooj tsavxwm raws li qhov yuav tsum tau ua, uas yog hu ua "los ntawm qhov".
Tom qab drilling tiav, lub qhov phab ntsa yog ib qho insulating substrate thiab tsis tuaj yeem ua hluav taws xob. Yog li ntawd, nws yog ib qho tsim nyog yuav tau ua "tooj liab deposition" kev kho mob: muab lub rooj tsavxwm nyob rau hauv ib tug tshuaj tooj liab deposition tov, thiab los ntawm cov tshuaj tiv thaiv, tso cai rau ib tug nyias txheej ntawm tooj liab mus rau uniformly ua raws li cov phab ntsa ntawm lub qhov, tig lub thawj insulated lub qhov phab ntsa rau hauv ib tug conductive "channel". Nyob rau hauv txoj kev no, cov kab hluav taws xob sab sauv thiab sab qis tuaj yeem txuas hluav taws xob los ntawm vias, ua kom tiav peb - qhov hluav taws xob hluav taws xob.
Kauj ruam 5: Solder mask thiab silk screen printing
Tom qab lub Circuit Court tsim, nws yog tsim nyog los muab ib tug "tiv thaiv khaub ncaws" nyob rau hauv lub Circuit Court board los tiv thaiv lub Circuit Court los ntawm oxidized, khawb, los yog luv luv Circuit Court thaum siv tom ntej. Cov kauj ruam no yog kev kho "lub npog ntsej muag": cov neeg ua haujlwm yuav sib npaug ntawm cov txheej txheem ntawm daim npog ntsej muag ntsuab ntawm lub rooj tsavxwm (tshwj tsis yog rau thaj tsam "solder pad" qhov twg cov khoom yuav tsum tau soldered), thiab tom qab ntawd tshem tawm cov ntaub npog ntsej muag hauv thaj chaw solder los ntawm kev raug thiab kev tsim kho, nthuav tawm cov tooj liab solder pads, thiab npog thaj chaw muag khoom.
Tom qab lub npog ntsej muag ua tiav, cov txheej txheem "screen printing" kuj tseem yuav tsum tau: siv cov tshuaj ntsuam luam ntawv los luam cov ntawv, cov cim, thiab cov naj npawb ntawm cov khoom siv hluav taws xob, xws li "R1" rau cov resistors thiab "C2" rau capacitors. Cov ntawv sau no zoo li "kev qhia phau ntawv" rau lub rooj tsav xwm hauv Circuit Court, uas tuaj yeem pab cov neeg ua haujlwm paub qhov chaw sai sai thaum lub sij hawm sib dhos tom ntej thiab pab daws teeb meem thaum kho.
Kauj Ruam 6: Kev Kho Hniav thiab Kev Ntsuas
Thaum kawg, txhawm rau txhim kho vuam kev ua tau zoo thiab oxidation tsis kam ntawm cov ntaub qhwv, yuav tsum tau kho saum npoo. Cov txheej txheem ua haujlwm feem ntau suav nrog "tin spraying" thiab "gold deposition", uas cov txheej txheem kub deposition tuaj yeem txhim kho cov conductivity thiab stability ntawm cov ntaub so ntswg, thiab feem ntau yog siv nyob rau hauv siab -precision circuit boards.
Tom qab tag nrho cov txheej txheem tiav lawm, lub rooj tsav xwm hauv Circuit Court yuav nkag mus rau theem kev soj ntsuam nruj: cov neeg ua haujlwm yuav siv cov cuab yeej tshwj xeeb los xyuas seb puas muaj luv luv Circuit Court lossis qhib Circuit Court, seb lub vias yog conductive, seb lub npog ntsej muag puas puas, thiab seb lub ntsej muag lo lo ntxhuav puas meej. Tsuas yog Circuit Court boards uas tau dhau tag nrho cov kev ntsuam xyuas tuaj yeem txiav txim siab raws li cov khoom tsim nyog thiab thaum kawg tawm hauv lub Hoobkas, tos kom sib sau ua ke nrog cov resistors, capacitors, chips, thiab lwm yam khoom siv los ua cov khoom tseem ceeb ntawm cov khoom siv hluav taws xob.