HDI qhov muag tsis pom thiab faus ntawm lub rooj tsav xwm hauv Circuit Court tau dav siv nyob rau hauv ntau qhov chaw vim lawv cov yam ntxwv, xws li cov kab hluav taws xob ntau dua thiab kev ua tau zoo ntawm hluav taws xob. Los ntawm cov neeg siv khoom siv hluav taws xob xws li smartphones thiab ntsiav tshuaj mus rau cov khoom siv nrog kev ua haujlwm nruj xws li cov khoom siv hluav taws xob hauv tsheb thiab kev sib txuas lus hauv paus chaw nres tsheb, HDI qhov muag tsis pom thiab faus ntawm lub rooj tsav xwm Circuit Court yog qhov tseem ceeb, thiab cov kab dav thiab kab sib nrug qhov tseeb, yog qhov tseem ceeb cuam tshuam rau nws cov kev ua tau zoo, muaj cov qauv nruj thiab cov ncauj lus kom ntxaws.
Ib 、 Qhov tseem ceeb ntawm kab dav thiab kab sib nrug raug
Kev ua haujlwm hluav taws xob cuam tshuam: kab dav yog ncaj qha ntsig txog qhov tsis kam ntawm cov hlau, qhov dav ntawm txoj kab dav me me, tuaj yeem nqa tau ntau dua tam sim no; Cov kab nrug cuam tshuam rau qhov capacitance thiab inductance ntawm kab. Nyob rau hauv high zaus Circuit Court, yog hais tias txoj kab dav thiab kab nrug qhov tseeb yog tsis txaus, qhov kev hloov ntawm capacitance thiab inductance yuav ua rau ncua thiab distortion nyob rau hauv lub teeb liab kis tau tus mob txheej txheem, uas cuam tshuam rau lub teeb liab kev ncaj ncees. Piv txwv li, ntawm HDI qhov muag tsis pom qhov faus qhov hluav taws xob ntawm 5G cov khoom siv sib txuas lus, cov teeb liab kis tau tus mob siab heev, thiab cov kab me me dav thiab qhov sib txawv ntawm kab yuav ua rau lub teeb liab tsis tuaj yeem raug xa mus, uas ua rau kev sib txuas lus tsis zoo.
Kev siv hluav taws xob ceev thiab qhov chaw siv: Ib qho ntawm qhov zoo ntawm HDI qhov muag tsis pom qhov faus qhov hluav taws xob hluav taws xob yog cov xaim hluav taws xob siab. Qhov siab-precision kab dav thiab kab sib nrug tuaj yeem npaj ntau cov kab hauv qhov chaw txwv kom ua tiav ntau txoj haujlwm hauv Circuit Court. Ua ib qho piv txwv ntawm smartphone motherboard, txhawm rau ua kom haum rau ntau cov chips, sensors thiab lwm yam khoom siv hluav taws xob, cov xaim loj yuav tsum tau ua kom tiav hauv thaj chaw me me. Tsuas yog los ntawm kev tswj hwm txoj kab dav dav thiab kab nrug qhov tseeb tuaj yeem ua tiav cov kab hluav taws xob zoo hauv qhov chaw me me, txhim kho kev sib koom ua ke ntawm cov motherboard, thiab ua tau raws li cov kev xav tau ntawm cov xov tooj ntawm tes.
二、Common standard value of line width and line nrug raug
Kev lag luam tus qauv: Nyob rau hauv dav dav HDI qhov muag tsis pom qhov hluav taws xob Circuit Court board tsim, feem ntau yam tsawg kawg nkaus kab dav tuaj yeem ncav cuag 3-4mil (0.076-0.10mm), thiab qhov tsawg kawg kab nrug yog li ntawm 3-4mil. Rau qee qhov kev thov tsawg dua, xws li cov tswj hwm tsis yog hauv cov neeg siv khoom siv hluav taws xob, cov kab dav thiab kab sib nrug yuav tau so rau 5-6mil (0.127-0.152mm). Txawm li cas los xij, nrog kev nce qib ntawm kev siv thev naus laus zis, cov kab dav thiab kab nrug qhov tseeb ntawm high-end HDI Circuit Court boards tab tom txhim kho nyob rau hauv me me. Piv txwv li, qee qhov kev ntim khoom ntim siab heev, lawv txoj kab dav thiab kab nrug tau mus txog 1-2mil (0.025-0.051mm) kom ua tau raws li cov kev xav tau ntawm high-speed thiab high-density teeb liab xa mus rau hauv lub nti.
Cov txheej txheem sib txawv ntawm cov ntawv thov sib txawv: Hauv kev ua haujlwm ntawm cov khoom siv hluav taws xob hauv tsheb, vim muaj kev ntseeg siab thiab ib puag ncig kev ua haujlwm (xws li kub kub, kev co siab, thiab lwm yam), cov kab dav thiab kab nrug qhov tseeb ntawm HDI qhov muag tsis pom faus Circuit Court boards nruj dua. Piv txwv li, Circuit Court board siv nyob rau hauv lub tsheb cav tswj chav tsev (ECU), kab dav thiab kab nyob deb qhov tseeb yog feem ntau tswj ntawm 4-5mil los xyuas kom meej stability thiab kev cia siab ntawm cov teeb liab kis tau tus mob nyob rau hauv hnyav ib puag ncig. Hauv kev lag luam ntawm cov khoom siv kho mob, xws li HDI Circuit Court board hauv magnetic resonance imaging (MRI) cov cuab yeej, txhawm rau kom ntseeg tau tias cov teeb liab tau txais thiab ua tiav, cov kab dav thiab kab nrug qhov tseeb yuav ncav cuag 2-3mil, uas tso siab heev rau cov txheej txheem tsim khoom.
三 、 Yam cuam tshuam rau kab dav thiab kab nrug qhov tseeb
Cov txheej txheem tsim khoom: txheej txheem lithography yog qhov txuas tseem ceeb los txiav txim siab txoj kab dav thiab kab nrug qhov tseeb. Nyob rau hauv cov txheej txheem ntawm lithography, qhov tseeb ntawm lub tshuab raug, kev ua haujlwm ntawm photoresist thiab kev tswj ntawm txoj kev loj hlob thiab etching yuav cuam tshuam rau txoj kab dav thiab kab nrug. Yog tias qhov tseeb ntawm lub tshuab raug tsis txaus, tus qauv raug cuam tshuam tuaj yeem ua tsis ncaj, thiab kab dav thiab kab nrug tom qab etching yuav txawv ntawm tus nqi tsim. Nyob rau hauv tus txheej txheem ntawm etching, kev tswj tsis zoo ntawm qhov concentration, kub thiab etching lub sij hawm ntawm cov kua etching kuj yuav ua rau muaj teeb meem xws li txoj kab dav dhau los yog nqaim dhau thiab kab tsis sib xws.
Cov yam ntxwv ntawm cov khoom siv: Cov khoom siv substrate thiab tooj liab ntawv ci cov yam ntxwv ntawm lub rooj tsav xwm Circuit Court kuj muaj kev cuam tshuam rau txoj kab dav thiab kab nrug qhov tseeb. Lub thermal expansion coefficient ntawm cov khoom sib txawv substrate sib txawv. Hauv kev tsim cov txheej txheem, vim muaj ntau cov txheej txheem cua sov thiab cua txias, yog tias cov thermal expansion coefficient ntawm cov khoom siv substrate tsis ruaj khov, nws yuav ua rau deformation ntawm Circuit Court board, uas cuam tshuam rau txoj kab dav thiab kab nrug qhov tseeb. Lub thickness uniformity ntawm tooj liab ntawv tseem yog ib qho tseem ceeb, thiab etching tus nqi ntawm cov ntawv ci tooj liab nrog cov tuab tsis sib xws yuav tsis sib haum thaum lub sij hawm etching, uas ua rau kab dav sib txawv.
四 、 Cov txheej txheem rau kev kuaj xyuas thiab tswj qhov tseeb
Kev kuaj xyuas txhais tau tias: Hauv cov txheej txheem tsim khoom ntawm HDI qhov muag tsis pom qhov faus lub rooj tsav xwm, ntau yam kev tshawb nrhiav yuav raug siv los saib xyuas cov kab dav thiab kab nrug qhov tseeb. Optical microscope yog ib qho ntawm cov cuab yeej tshuaj xyuas feem ntau. Los ntawm kev nthuav tawm cov duab saum npoo ntawm lub rooj tsav xwm hauv Circuit Court, kab dav thiab kab nrug yog ntsuas manually lossis nrog kev pab ntawm cov duab tsom xam software los txiav txim seb tus qauv puas tau. Hluav taws xob