Hona joale, ho na le mefuta e 'maloa ea li-laminate tsa koporo tse sebelisoang haholo naheng ea heso,' me litšoaneleho tsa tsona ke tse latelang: mefuta ea li-laminates tse nang le koporo, tsebo ea li-laminates tse nang le koporo, le mekhoa ea lihlopha tsa li-laminate tsa koporo.Ka kakaretso, ho ea ka lisebelisoa tse fapaneng tse matlafatsang tsa boto, e ka aroloa ka mekhahlelo e mehlano: setsi sa pampiri, setsi sa lesela la khalase, setsi sa composite (CEM series), laminated multi-layer board base le lisebelisoa tse khethehileng (ceramic, tšepe ea mantlha). motheo, joalo-joalo).Haeba e arotsoe ho ea ka sekhomaretsi sa resin se sebelisoang ka boto, CCI e tloaelehileng e thehiloeng pampiring.Ho na le: resin ea phenolic (XPC, XxxPC, FR-1, FR-2, joalo-joalo), resin ea epoxy (FE-3), resin ea polyester le mefuta e meng.Setsi se tloaelehileng sa khalase ea fiber CCL se na le epoxy resin (FR-4, FR-5), eo hajoale e leng mofuta o sebelisoang ka ho fetesisa oa lesela la lesela la khalase.Ho phaella moo, ho na le li-resin tse ling tse khethehileng (lesela la khalase, fiber polyamide, lesela le sa lohiloeng, joalo-joalo e le lisebelisoa tse eketsehileng): bismaleimide e fetotsoeng triazine resin (BT), polyimide resin (PI) , Diphenylene ether resin (PPO), maleic anhydride imine-styrene resin (MS), polycyanate resin, polyolefin resin, joalo-joalo Ho ea ka lelakabe retardant tshebetso ya CCL, e ka aroloa ka mefuta e 'meli ea mapolanka: lelakabe retardant (UL94-VO, UL94-V1) le bao e seng- flame retardant (UL94-HB) .Nakong e le 'ngoe kapa tse peli tse fetileng, ka ho hatisoa haholoanyane ho sireletsa tikoloho, mofuta o mocha oa CCL o se nang bromine o arohane le CCL e thibelang lelakabe, e ka bitsoang "malakabe a tala. -CCL e sa tsitsang”.Ka nts'etsopele e potlakileng ea theknoloji ea lihlahisoa tsa elektroniki, ho na le litlhoko tse phahameng tsa ts'ebetso bakeng sa cCL.Ka hona, ho tloha sehlopheng sa ts'ebetso ea CCL, e arotsoe ka CCL ea ts'ebetso e akaretsang, CCL e tlaase ea dielectric kamehla, CCL e phahameng ea mocheso (ka kakaretso L ea boto e ka holimo ho 150 ° C), le coefficient e tlase ea mocheso oa CCL (e sebelisoang hangata ho liphutheloana tsa liphutheloana) ) le mefuta e meng.Ka tsoelo-pele le tsoelo-pele e tsoelang pele ea thekenoloji ea elektronike, litlhoko tse ncha li lula li behiloe pele bakeng sa lisebelisoa tsa substrate tse hatisitsoeng, kahoo li khothalletsa tsoelo-pele e tsoelang pele ea litekanyetso tsa koporo tsa laminate.Hona joale, litekanyetso tse ka sehloohong tsa thepa ea substrate ke tse latelang
① Tekanyetso ea naha: maemo a naha ea heso a amanang le thepa ea substrate e kenyelletsa GB/T4721-47221992 le GB4723-4725-1992.Tekanyetso ea li-laminate tsa koporo tsa Taiwan, Chaena ke tekanyetso ea CNS, e entsoeng ho latela maemo a Japane a JIS mme e thehiloe ka 1983. tokollo.
② Litekanyetso tsa machaba: JIS standard ea Japane, American ASTM, NEMA, MIL, IPc, ANSI, UL standard, British Bs standard, German DIN, VDE standard, French NFC, UTE standard, Canadian CSA standard, Australian standard AS, FOCT standard ea Soviet Union ea mehleng, maemo a machaba a IEC, joalo-joalo;barekisi ba lisebelisoa tsa moralo oa PCB, tse tloaelehileng le tse sebelisoang hangata ke: Shengyi\Kingboard\International, joalo-joalo.
Kenyelletso ea lisebelisoa tsa boto ea potoloho ea PCB: ho latela boemo ba boleng ho tloha tlase ho ea holimo, e arotsoe ka tsela e latelang: 94HB-94VO-CEM-1-CEM-3-FR-4
Litaelo tse qaqileng le tšebeliso ke tse latelang:
94HB
: Khateboto e tloaelehileng, eseng e sa chese mollo (thepa ea boemo bo tlase, e ke ke ea sebelisoa e le boto ea matla)
94V0: khateboto e thibelang lelakabe (ho phunya)
22F
: Boto ea fiber ea khalase e nang le lehlakore le le leng (ho phunya)
CEM-1
: Boto ea fiberglass e lehlakoreng le le leng (e tlameha ho chekoa ka komporo, eseng ho otloa)
CEM-3
: Boto ea semi-fiberglass e nang le mahlakoreng a mabeli (ntle le karete ea mahlakoreng a mabeli, e leng thepa e tlaase ka ho fetisisa bakeng sa liphanele tse mahlakoreng a mabeli. FR-4)
FR-4:
Boto ea fiberglass e mahlakoreng a mabeli
1. Khethollo ea thepa e thibelang lelakabe e ka aroloa ka mefuta e mene: 94VO-V-1-V-2-94HB
2. Prepreg: 1080=0.0712mm, 2116=0.1143mm, 7628=0.1778mm
3. FR4 CEM-3 kaofela li emela liboto, fr4 ke boto ea fiber ea khalase, 'me cem3 ke karoloana e kopaneng.
4. Halogen-free e bua ka li-substrates tse se nang li-halogen (lintho tse kang fluorine, bromine, iodine, joalo-joalo), hobane bromine e tla hlahisa likhase tse chefo ha li chesoa, tse hlokoang ke tšireletso ea tikoloho.
5. Tg ke mocheso oa phetoho ea khalase, e leng ntlha ea ho qhibiliha.
6. Boto ea potoloho e tlameha ho thibela mollo, e ke ke ea chesa mocheso o itseng, e ka nolofatsa feela.Sebaka sa mocheso ka nako ena se bitsoa mocheso oa phetoho ea khalase (Tg ntlha), 'me boleng bona bo amana le ho tšoarella ha dimensional tsa boto ea PCB.
Tg e phahameng ke eng?Boto ea potoloho ea PCB le melemo ea ho sebelisa Tg PCB e phahameng: Ha mocheso oa Tg o phahameng o hatisitsoeng oa potoloho o nyolohela moeling o itseng, substrate e tla fetoha ho tloha "boemo ba khalase" ho "rabara boemo", 'me mocheso ka nako ena o bitsoa. mocheso oa phetoho ea khalase ea boto (Tg).Ke hore, Tg ke mocheso o phahameng ka ho fetisisa (° C.) oo substrate e lulang e tiile.Ke ho re, thepa e tloaelehileng ea substrate ea PCB e tla tsoela pele ho nolofatsa, ho holofala, ho qhibiliha le liketsahalo tse ling tlas'a mocheso o phahameng, 'me ka nako e ts'oanang, e tla boela e bontše ho fokotseha ho hoholo ha thepa ea mechine le ea motlakase, e tla ama bophelo ba tšebeletso. sehlahisoa.Ka kakaretso, boto ea Tg ke 130 Ka holimo ho ℃, Tg e phahameng ka kakaretso e kholo ho feta 170 ° C, 'me Tg e bohareng e kholo ho feta 150 ° C;hangata PCB e hatisitsoeng boto e nang le Tg ≥ 170 ° C e bitsoa boto e phahameng ea Tg e hatisitsoeng;Tg ea substrate e ntse e eketseha, 'me ho hanyetsa mocheso oa boto e hatisitsoeng, Likarolo tse kang ho hanyetsa mongobo, ho hanyetsa lik'hemik'hale, le botsitso kaofela li ntlafatsoa le ho ntlafatsoa.Ha boleng ba TG bo phahame, ho molemo ho hanyetsa mocheso oa boto, haholo-holo. ts'ebetsong e se nang lead, ho na le likopo tse ngata tsa Tg e phahameng;Tg e phahameng e bolela ho hanyetsa mocheso o phahameng.Ka tsoelo-pele e potlakileng ea indasteri ea lisebelisoa tsa elektronike, haholo-holo lihlahisoa tsa elektronike tse emeloang ke lik'homphieutha, li ntse li tsoela pele ho ea ho ts'ebetso e phahameng le lihlopha tse ngata tse phahameng, tse hlokang ho hanyetsa mocheso o phahameng oa thepa ea substrate ea PCB e le ntho e hlokahalang.Ho hlaha le nts'etsopele ea mahlale a phahameng a matla a phahameng a emeloang ke SMT le CMT li entse hore PCB e se ke ea arohanngoa le ho ts'ehetsa mocheso o phahameng oa ho hanyetsa mocheso oa substrate ho latela sebaka se senyenyane sa ho phunyeha, mohala o motle le ho fokotsa.Ka hona, phapang pakeng tsa kakaretso ea FR-4 le Tg e phahameng: mocheso o phahameng, haholo-holo tlas'a mocheso ka mor'a ho kenngoa ha mongobo, matla a mochine, botsitso ba dimensional, ho khomarela, ho kenngoa ha metsi, ho senyeha ha mocheso, ho atolosoa ha mocheso, joalo-joalo ho na le phapang. pakeng tsa maemo a mabeli, le lihlahisoa tse phahameng tsa Tg ho hlakile hore li molemo ho feta lisebelisoa tse tloaelehileng tsa boto ea potoloho ea PCB.
Nako ea poso: Apr-26-2023