Iyo yepamusoro-chaiyo yedunhu bhodhi inoreva kushandiswa kweyakatsetseka mutsara hupamhi / nzvimbo, maburi madiki, nhete mhete yakafara (kana isina mhete yakafara) uye yakavigwa uye mapofu maburi kuti awane yakakwira density.
Kunyatsojeka kunoreva kuti mhedzisiro ye "yakanaka, diki, yakatetepa, uye yakatetepa" inozotungamira kune yakanyanya kurongeka zvinodiwa. Tora upamhi hwemutsara semuenzaniso:
0.20mm mutsara wakafara, 0.16～0.24mm inogadzirwa maererano nemitemo inokodzera, uye kukanganisa ndiko (0.20±0.04) mm; nepo mutsara wehupamhi hwe0.10mm, kukanganisa kuri (0.1± 0.02) mm, zviri pachena Kururama kwekupedzisira kunowedzerwa nechikamu che1, uye zvichingodaro hazvina kuoma kunzwisisa, saka izvo zvinodikanwa zvakanyanya hazvizokurukurwa. zvakasiyana. Asi idambudziko rakakurumbira mukugadzira tekinoroji.
Diki uye dense waya tekinoroji
Mune ramangwana, iyo yakakwirira-density mutsetse upamhi/pitch ichabva pa 0.20mm-0.13mm-0.08mm-0.005mm kuti isangane nezvinodiwa zveSMT uye multi-chip packaging (Mulitichip Package, MCP). Naizvozvo, tekinoroji inotevera inodiwa.
①Substrate
Kushandisa yakaonda kana yakanyanyisa-yakatetepa yemhangura foil (<18um) substrate uye yakanaka yepamusoro yekurapa tekinoroji.
②Process
Uchishandisa yakaonda yakaoma firimu uye yakanyorova yekumisa maitiro, yakaonda uye yakanaka mhando yakaoma firimu inogona kuderedza mutsara wakafara kukanganisa uye kukanganisa. Firimu rakanyorova rinogona kuzadza madiki madiki emhepo, kuwedzera interface adhesion, uye kunatsiridza waya kutendeseka uye chokwadi.
③Electrodeposited photoresist firimu
Electro-deposited Photoresist (ED) inoshandiswa. Ukobvu hwayo hunogona kudzorwa muhupamhi hwe5-30/um, uye hunogona kugadzira waya dzakakwana dzakakwana. Iyo inonyanya kukodzera kune yakamanikana mhete upamhi, hapana mhete hupamhi uye yakazara ndiro electroplating. Parizvino, kune anopfuura gumi mitsara yekugadzira ED munyika.
④ Parallel light exposure tekinoroji
Kushandisa parallel light exposure tekinoroji. Sezvo kuratidzwa kwechiedza chakafanana kuchigona kukunda pesvedzero yekusiyana kwehupamhi hwemutsara inokonzerwa nemaranzi e oblique e "point" mwenje sosi, waya yakanaka ine saizi yehupamhi hwemutsara uye mipendero yakatsetseka inogona kuwanikwa. Nekudaro, iyo parallel exposure midziyo inodhura, mari yakakwira, uye inofanirwa kushanda munzvimbo yakachena kwazvo.
⑤Automatic optical inspection tekinoroji
Kushandisa otomatiki optical yekuongorora tekinoroji. Iyi tekinoroji yave nzira yakakosha yekuona mukugadzirwa kwewaya dzakanaka, uye iri kukurumidza kusimudzirwa, kushandiswa nekuvandudzwa.
EDA365 Electronic Forum
Microporous tekinoroji
Iwo maburi anoshanda emapuranga akadhindwa anoshandiswa kukwirisa pamusoro peiyo microporous tekinoroji anonyanya kushandiswa pakubatanidza magetsi, izvo zvinoita kuti kushandiswa kweiyo microporous tekinoroji kuve yakakosha. Kushandisa zvakajairwa zvibooreso uye CNC kuchera michina kugadzira maburi madiki kune kukundikana kwakawanda uye kudhura kwakanyanya.
Nokudaro, kukwirira kwepamusoro kwemapuranga akadhindwa kunonyanya kutariswa pakunatswa kwetambo nemapadhi. Kunyange zvazvo mibairo mikuru yakawanwa, kugona kwayo ishoma. Kuti uwedzere kuvandudza density (senge waya isingasviki 0.08mm), mutengo urikukwira. , Saka tendeuka kushandisa micropores kuvandudza densification.
Mumakore achangopfuura, manhamba ekudzora kuchera michina uye micro-drill tekinoroji yakaita budiriro, uye nekudaro tekinoroji yegomba yakagadzira nekukurumidza. Ichi ndicho chinhu chikuru chakatanhamara mune yazvino PCB kugadzirwa.
Mune ramangwana, iyo micro-gomba yekugadzira tekinoroji ichanyanya kuvimba nemichina yekuchera CNC uye yakanakisa misoro midiki, uye maburi madiki akaumbwa nelaser tekinoroji achiri akaderera kune ayo akaumbwa neCNC yekuchera michina kubva pakuona kwemutengo uye gomba mhando. .
①CNC yekuchera muchina
Parizvino, tekinoroji yemuchina wekuchera CNC waita mabudiro matsva uye kufambira mberi. Uye yakagadzira chizvarwa chitsva cheCNC yekuchera muchina unozivikanwa nekuchera maburi madiki.
Kubudirira kwekuchera makomba maduku (pasi pe 0.50mm) yemuchina wekuchera micro-hole wakakwirira ka1 pane yeCNC yekuchera muchina, ine kukundikana kushoma, uye kukurumidza kutenderera i11-15r / min; inogona kuboora 0.1-0.2mm micro-holes, ichishandisa cobalt yakakwira yemukati. Iyo yemhando yepamusoro yekubooresa diki inogona kuboora marata matatu (1.6mm/block) akaturikidzana pamusoro peimwe. Kana chibooreso chatyoka, chinogona kungomira chotaura chinzvimbo, chobva chatsiva chibhorani uye chekutarisa dhayamita (raibhurari yemidziyo inogona kubata mazana ezvimedu), uye inokwanisa kudzora otomatiki chinhambwe chiri pakati pechibooreso nechivharo. uye kudzika kwekuchera, saka mapofu mapofu anogona kucherwa , Hazvizokuvadza countertop. Iyo tafura yepamusoro yemuchina wekuchera CNC inotora mhepo cushion uye magineti levitation mhando, iyo inogona kufamba nekukurumidza, yakareruka uye yakanyatsojeka pasina kukwenya tafura.
Michina yekuchera yakadai iri kudiwa parizvino, seMega 4600 kubva kuPrurite kuItari, iyo Excellon 2000 yakatevedzana muUnited States, uye zvigadzirwa zvechizvarwa chitsva kubva kuSwitzerland neGermany.
②Kuchera nelaser
Chokwadi kune matambudziko mazhinji ane akajairwa CNC ekuchera michina uye mabheti ekuboora maburi madiki. Izvo zvakatadzisa kufambira mberi kweiyo micro-hole tekinoroji, saka laser ablation yakwezva kutarisa, kutsvagisa uye kushandisa.
Asi pane kukanganisa kunouraya, ndiko kuti, kuumbwa kwegomba renyanga, iro rinova rakanyanya kuipa sezvo kukora kweplate kunowedzera. Yakabatana nekusvibiswa kwepamusoro-tembiricha yekubvisa (kunyanya mabhodhi akawanda), hupenyu nekuchengetedza kwechiedza, kudzokororwa kwemakomba ekuora, uye mutengo, kukwidziridzwa uye kushandiswa kwema micro-holes mukugadzirwa kwemabhodhi akadhindwa kwakarambidzwa. . Nekudaro, laser ablation ichiri kushandiswa mutete uye yakakwira-density microporous mahwendefa, kunyanya muMCM-L yakakwirira-density interconnect (HDI) tekinoroji, senge polyester firimu etching uye simbi deposition muMCMs. (Sputtering tekinoroji) inoshandiswa mune yakasanganiswa yakakwirira-density yekubatanidza.
Kuumbwa kwemavias akavigwa mu-high-density interconnect multilayer mapuranga ane akavigwa uye mapofu kuburikidza nezvimiro anogonawo kuiswa. Nekudaro, nekuda kwebudiriro uye tekinoroji yeCNC yekuchera michina uye micro-drills, ivo vakakurumidza kusimudzirwa uye kuiswa. Naizvozvo, kushandiswa kwelaser drilling mupamusoro mount redunhu mabhodhi hakugone kuumba chinzvimbo chikuru. Asi ichine nzvimbo mune imwe ndima.
③Tekinoroji yakavigwa, mapofu, uye kuburikidza negomba
Yakavigwa, mapofu, uye kuburikidza-gomba musanganiswa tekinoroji zvakare inzira yakakosha yekuwedzera kuwanda kwemaseketi akadhindwa. Kazhinji, makomba akavigwa nemapofu maburi madiki. Kuwedzera kuwedzera nhamba wiring pabhodhi, akavigwa uye mapofu makomba ari interconnected ne "pedyo" yemukati layer, iyo inoderedza zvikuru nhamba kuburikidza nemakomba akaumbwa, uye kuzviparadzanisa dhisiki kugadzika kuchaitawo zvikuru Kuderedza, nokudaro kuwedzera nhamba yeanoshanda wiring uye inter-layer interconnection mubhodhi, uye kuvandudza yekubatanidza density.
Naizvozvo, iyo yakawanda-layer board ine musanganiswa wekuvigwa, bofu, uye kuburikidza-maburi ine kanenge ka3 yakakwira interconnection density pane yakajairwa yakazara-kuburikidza-gomba bhodhi chimiro pasi pehukuru hwakafanana uye nhamba yezvikamu. Kana akavigwa, mapofu, Hukuru hwemapuranga akadhindwa akasanganiswa nemaburi achadzikiswa zvakanyanya kana kuwanda kwezvikamu zvichaderedzwa zvakanyanya.
Naizvozvo, mumabhodhi akadhindwa akakwira-density pamusoro-akaiswa, akavigwa uye mapofu maburi matekinoroji ave achiwedzera kushandiswa, kwete chete mupamusoro-akaiswa mabhodhi akadhindwa mumakomputa makuru, midziyo yekutaurirana, nezvimwewo, asiwo mune zvechivanhu uye zvemaindasitiri zvikumbiro. Yakave ichishandiswa zvakanyanya mumunda, kunyangwe mune mamwe mabhodhi matete, akadai sePCMCIA, Smart, IC makadhi uye mamwe matete matanhatu-layer board.
Mabhodhi edunhu akadhindwa ane akavigwa uye mapofu maburi maburi anowanzo kupedzwa ne "sub-board" nzira dzekugadzira, zvinoreva kuti dzinofanirwa kupedzwa kuburikidza nekutsikirira kwakawanda, kudhirowa, uye kuputika kwegomba, saka kunyatsomira kwakakosha.