Ihe dị iche iche nke bọọdụ sekit
94HB – 94VO – 22F – CEM-1 – CEM-3 – FR-4 kọwara n’ụzọ zuru ezu dị ka ndị a: 94HB: nkịtị kaadiboodu, ọ bụghị fireproof (kasị ala ọkwa ihe, anwụ punching, enweghị ike iji dị ka ike osisi) 94V0: kaadiboodu ire ọkụ (ebu Punching) 22F: Otu akụkụ ọkara fiberglass osisi (anwụ anwụ) CEM-1: Mpekere fiberglass nwere otu akụkụ (a ga-eji kọmpụta gbachie ya, ọ bụghị ịnwụ ịkụ ọkpọ) CEM-3: bọọdụ fiberglass nwere akụkụ abụọ ( ma ewezuga kaadiboodu nwere akụkụ abụọ bụ ihe kachasị dị ala maka bọọdụ nwere akụkụ abụọ. Mpempe akụkụ abụọ dị mfe nwere ike iji ihe a, nke bụ 5 ~ 10 yuan / square mita dị ọnụ ala karịa FR-4.)
FR-4: bọọdụ fiberglass nwere akụkụ abụọ
Igwe sekit ga-abụrịrị ọkụ na-eguzogide ọkụ, enweghị ike ire ọkụ n'otu ọnọdụ okpomọkụ, mana enwere ike ime ka ọ dị nro.A na-akpọ okpomọkụ n'oge a iko mgbanwe okpomọkụ (Tg point), na uru a metụtara nkwụsi ike akụkụ nke osisi PCB.
Mgbe okpomọkụ na-ebili na mpaghara ụfọdụ, mkpụrụ ahụ ga-agbanwe site na "glassy" gaa na "rubbery", na okpomọkụ n'oge a ka a na-akpọ okpomọkụ mgbanwe iko (Tg) nke efere ahụ.N'ikwu ya n'ụzọ ọzọ, Tg bụ okpomọkụ kachasị elu (°C) nke mkpụrụ ahụ na-ejigidesi ike.
Nke ahụ bụ, nkịtị PCB mkpụrụ ihe ọ bụghị nanị na-emepụta nro, deformation, agbaze na ndị ọzọ phenomena na elu okpomọkụ, ma na-egosi a nkọ ọdịda na n'ibu na eletriki e ji mara (m na-eche na ị na-achọghị ịhụ nhazi ọkwa nke PCB mbadamba. ma hụ ọnọdụ a na ngwaahịa nke gị. ).
Efere Tg izugbe karịrị ogo 130, Tg dị elu na-adịkarị karịa ogo 170, na ọkara Tg bụ ihe karịrị ogo 150.
A na-akpọkarị mbadamba PCB ndị e biri ebi na Tg ≥ 170C.Ka Tg nke mkpụrụ osisi na-abawanye, a ga-eme ka ọ dịkwuo mma ma na-emeziwanye okpomọkụ na-eguzogide okpomọkụ, mmiri na-eguzogide mmiri, nguzogide kemịkalụ, nkwụsi ike na njirimara ndị ọzọ nke bọọdụ a na-ebipụta.Ọnụ ahịa TG dị elu, ka mma na-eguzogide okpomọkụ nke osisi ahụ, karịsịa na usoro enweghị ndu, ebe ngwa Tg dị elu na-adịkarị.
High Tg na-ezo aka na oke okpomọkụ.Site na mmepe ngwa ngwa nke ụlọ ọrụ elektrọnik, ọkachasị ngwaahịa eletrọnịkị nke kọmpụta na-anọchi anya ya, mmepe nke arụmọrụ dị elu na ọtụtụ multilayers chọrọ nnukwu nguzogide ihe ọkụkụ nke PCB dị ka ihe dị mkpa na-ekwe nkwa.Mwepụta na mmepe nke teknụzụ na-arị elu dị elu nke SMT na CMT nọchitere anya emeela ka PCB dịkwuo ike na nkwado nke oke okpomọkụ na-eguzogide nke ihe ndị dị na obere oghere, mma wiring na thinning.
Ya mere, ihe dị iche n'etiti izugbe FR-4 na elu Tg FR-4: ọ bụ na-ekpo ọkụ na steeti, karịsịa mgbe mmiri absorption.
Ndị na-eweta ihe PCB izizi bụ ihe a na-ejikarị eme ihe: Shengyi \ Jiantao \ International, wdg.
● Akwụkwọ anabatara: protel autocad powerpcb orcad gerber ma ọ bụ ezigbo bọọdụ oyiri, wdg.
● Ụdị osisi: CEM-1, CEM -3 FR4, ihe TG dị elu;
● Oke osisi kacha: 600mm * 700mm (24000mil * 27500mil)
● Ọkpụrụkpụ osisi: 0.4mm-4.0mm (15.75mil-157.5mil)
● Oke nhazi ọkwa: 16Layers
● oyi akwa ọla kọpa ọkpụrụkpụ: 0.5-4.0 (oz)
● Nlegide ọkpụrụkpụ nke bọọdụ emechara: +/- 0.1mm (4mil)
● Ịmepụta nha nhata: igwe igwe kọmputa: 0.15mm (mil 6) Efere anwụ anwụ: 0.10mm (4mil)
● Obere ahịrị obosara / oghere :0.1mm (4mil) Ikike njikwa obosara ahịrị: <+-20%
● Opekempe oghere oghere nke ngwaahịa emechara: 0.25mm (10mil) Opekempe oghere ịkụ ọkpọ nke ngwaahịa emechara: 0.9mm (35mil) Nkwenye nke dayameta oghere ngwaahịa emechara: PTH: + -0.075mm (3mil) NPTH : +-0.05mm(2mil)
● Ọkpụkpụ ọla kọpa agwụla olulu: 18-25um (0.71-0.99mil)
● Obere oghere SMT kacha nta: 0.15mm (6mil)
● Mkpuchi dị n'elu: ọla edo imi mmiri kemịkalụ, ịgba agba agba agba, bọọdụ ahụ dum bụ ọla edo nickel-plated (mmiri / ọla edo dị nro), gluu silk na-acha anụnụ anụnụ, wdg.
● ọkpụrụkpụ mkpuchi ihe na-ere ihe na bọọdụ: 10-30μm (0.4-1.2mil)
● Ike peeling: 1.5N/mm (59N/mil)
● Ike ihe nkiri na-eguzogide ihe na-ere:>5H
● Ikike oghere nkwụnye ihe na-ere ihe: 0.3-0.8mm (12mil-30mil)
● Dielectric mgbe niile: ε= 2.1-10.0
● Mkpuchi mkpuchi: 10KΩ-20MΩ
● Ihe mgbochi njirimara: 60 ohm± 10%
● Igwe ọkụ ọkụ: 288 ℃, 10 sk
● Akwụkwọ akụkọ nke bọọdụ emechara: <0.7%
● Ngwa ngwaahịa: ngwa nkwurịta okwu, ngwá electronic ụgbọala, ngwá ọrụ, usoro nhazi ụwa, kọmputa, MP4, ọkụ ọkụ, ngwa ụlọ, wdg.
FR-4
4. Ndị ọzọ
Nke gara aga:
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