1. Inzira nyamukuru

Browning → fungura PP → mbere-gahunda → imiterere → kanda-→ gusenya → ifishi → FQＣ → IQＣ →

2. Isahani idasanzwe

(1) Ibikoresho byinshi bya tg pcb

Hamwe niterambere ryikoranabuhanga rya elegitoronike, imirima yo gusaba ya imbaho ​​zacapwe zabaye nini kandi nini, kandi ibisabwa kugirango imikorere yimbaho ​​zacapwe zagiye zitandukanye.Usibye imikorere ya PCB isanzwe, PCB substrates nayo isabwa gukora neza mubushyuhe bwinshi.Muri rusange, Ikibaho cya FR-4 ntishobora gukora neza mubushyuhe bwo hejuru kuko ubushyuhe bwikirahure (Tg) buri munsi ya 150 ° C.

Kwinjiza igice cyimikorere ya epoxy ya tronctionnement na polyfunctional epoxy resin cyangwa kwinjiza igice cya fenolike epoxy resin muburyo bwa resin yubuyobozi rusange FR-4 kugirango yongere Tg kuva 125 ～ 130 ℃ kugeza 160 ～ 200 ℃, ibyo bita High Tg.High Tg irashobora kuzamura cyane igipimo cyo kwagura ubushyuhe bwikibaho mu cyerekezo cya Z-axis (ukurikije imibare ifatika, Z-axis CTE ya FR-4 isanzwe ni 4.2 mugihe cyo gushyushya 30 kugeza 260 while, naho FR- 4 ya High Tg ni 1.8 gusa), Kugirango rero yemeze neza imikorere yumuriro wamashanyarazi unyuze mumyobo hagati yuburyo bwibibaho byinshi;

(2) Ibikoresho byo kurengera ibidukikije

Laminates yangiza ibidukikije yangiza ibidukikije ntishobora kubyara ibintu byangiza umubiri wumuntu nibidukikije mugihe cyo kubyara, gutunganya, kubishyira mu bikorwa, umuriro, no kujugunya (gutunganya, gushyingura, no gutwika).Kugaragara byihariye ni ibi bikurikira:

① Ntabwo irimo halogene, antimoni, fosifore itukura, nibindi

② Ntabwo irimo ibyuma biremereye nka gurş, mercure, chromium, na kadmium.

③ Umuriro ugera kuri UL94 V-0 cyangwa urwego V-1 (FR-4).

Performance Imikorere rusange yujuje IPC-4101A.

Saving Kubika ingufu no gutunganya ibicuruzwa birakenewe.

3. Oxidation yibibaho byimbere (gukara cyangwa kwirabura):

Ikibaho cyibanze kigomba kuba okiside kandi igasukurwa kandi ikuma mbere yuko ikanda.Ifite imirimo ibiri:

a.Ongera ubuso, ushimangire gufatira (Adhension) cyangwa gukosora (Bondabitity) hagati ya PP n'umuringa wo hejuru.

b.Igice kinini cya Passivation (Passivation) gikorerwa hejuru yumuringa wambaye ubusa kugirango wirinde ingaruka za amine muri kole yamazi hejuru yumuringa hejuru yubushyuhe bwinshi.

4. Filime (Prepreg):

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(2) Ubwoko: Hariho ubwoko bwa 106, 1080, 2116 na 7628 bwa PP bukunze gukoreshwa;

(3) Hariho ibintu bitatu byingenzi bifatika: Resin Flow, Ibirimo, na Gel Igihe.

5. Igishushanyo mbonera cyingutu:

(1) Intangiriro ntoya ifite ubunini bunini irahitamo (ugereranije neza neza)

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(3) Imiterere idasanzwe irahitamo;

(4) Ubunini bwurwego rwa dielectric> ubunini bwumuringa wimbere wumuringa × 2;

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. koresha resin nyinshi yibirimo prereg, nka 2116, 1080;

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(9) Birabujijwe gukoresha PP imwe kubibaho bifite umuringa w'imbere ≥ 3oz.Mubisanzwe, 7628 ntabwo ikoreshwa.Imyiteguro myinshi irimo resin nyinshi igomba gukoreshwa, nka 106, 1080, 2116 ...

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6. Inzira yo gukanda

a.Amategeko gakondo

Uburyo busanzwe nugukonja no kumanuka muburiri bumwe.Mugihe cyo kuzamuka kwubushyuhe (hafi iminota 8), koresha 5-25PSI kugirango woroshye kole itemba kugirango buhoro buhoro wirukane ibibyimba mubitabo byisahani.Nyuma yiminota 8, ubwiza bwa kole bwongerewe umuvuduko wumuvuduko wuzuye wa 250PSI kugirango ukureho ibibyimba byegereye inkombe, kandi ukomeze gukomera ibisigazwa kugirango wongere urufunguzo nikiraro cyuruhande kuminota 45 kuri ubushyuhe bwinshi n'umuvuduko mwinshi wa 170 ℃, hanyuma ubigumane muburiri bwambere.Umuvuduko wumwimerere uramanurwa nkiminota 15 kugirango uhamye.Ikibaho kimaze kuva mu buriri, kigomba gutekwa mu ziko kuri 140 ° C mu masaha 3-4 kugirango bikomere.

b.Guhindura resin

Hamwe no kwiyongera kwibibaho bine, laminate-ya-laminate yagize impinduka nini.Kugirango hubahirizwe uko ibintu bimeze, epoxy resin formulaire no gutunganya firime nabyo byarahinduwe.Impinduka nini ya epoxy resin ya FR-4 nukwongera ibice byihuta no kongeramo resin ya fenolike cyangwa ibindi bisigara kugirango byinjire kandi byumye B kumyenda yikirahure.-Satge epoxy resin ifite kwiyongera gake muburemere bwa molekile, kandi imigozi yo kuruhande irabyara, bikavamo ubucucike bwinshi nubukonje bwinshi, bigabanya reaction yiyi B-Satge kuri C-Satge, kandi bikagabanya umuvuduko wogutemba mubushyuhe bwinshi numuvuduko mwinshi. ., Igihe cyo guhindura gishobora kwiyongera, kubwibyo birakwiriye kuburyo bwo kubyara umubare munini wimashini hamwe nibice byinshi byamasahani maremare kandi manini, kandi hakoreshwa umuvuduko mwinshi.Nyuma yo kuzuza ibinyamakuru, ikibaho cyibice bine gifite imbaraga zirenze epoxy resin gakondo, nka: Guhagarara kwimiterere, kurwanya imiti, no kurwanya ibishishwa.

c.Uburyo bwo gukanda

Kugeza ubu, byose ni ibikoresho binini byo gutandukanya ibitanda bishyushye n'imbeho.Hano hari byibuze bine bishobora gufungura kandi nka cumi na bitandatu.Hafi ya bose barashyushye kandi basohoka.Nyuma yiminota 100-120 yo gukomera kwumuriro, bahita basunikwa kuburiri bukonje icyarimwe., Gukanda gukonje birahagaze nka 30-50min munsi yumuvuduko mwinshi, ni ukuvuga ko inzira yose yo gukanda irangiye.

7. Gushiraho gahunda yo gukanda

Uburyo bwo gukanda bugenwa nuburyo bwibanze bwa Prepreg, ubushyuhe bwikirahure nigihe cyo gukiza;

(1) Igihe cyo gukira, ubushyuhe bwikirahure nubushyuhe bwo gushyushya bigira ingaruka kumuzingo;

(2) Mubisanzwe, igitutu mugice cyumuvuduko mwinshi gishyirwa kuri 350 ± 50 PSI;