Faʻamatalaina o laupapa maualuga PCB taimi

Maualuga laupapa faʻatatau e faʻasino i le faʻapitoa electromagnetic frequency circuit board, faʻaaogaina i le maualuga o taimi (sili atu i le 300 MHZ taimi poʻo le wavelength e laititi atu i le 1 mita) ma microwave (sili atu i le 3 GHZ taimi poʻo wavelength e laʻititi atu i le 0.1 mita) i le fanua o PCB, o loʻo i luga o le microwave base ‘apamemea ofu faʻaaogaina masani maʻaʻa matagaluega laupapa gaosi metotia o se vaega o le gaioiga poʻo le faʻaaogaina o faʻapitoa gaosi metotia ma le gaosiaina o matagaluega laupapa. I se tulaga lautele, maualuga-taimi laupapa mafai ona faauigaina o matagaluega laupapa ma alavai luga luga 1GHz.

Faatasi ai ma le televave atinae o le faasaienisi ma tekonolosi, sili atu ma sili atu masini meafaigaluega mamanu o loo i totonu o le gelombangini band (> 1GHZ) ma e oʻo lava i le millimeter galu fanua (30GHZ) luga o le talosaga, o lona uiga foi o le taimi e maualuga ma maualuga atu, o le substrate o le matagaluega laupapa manaʻoga e maualuga foi ma maualuga. Mo se faʻataʻitaʻiga, mea manaʻomia substrate manaʻomia eletise lelei, lelei vailaʻau mausali, ma le faʻateleina o le mana faailo masani i le substrate leiloa manaʻoga e matua laiti, o lea la o le taua o le maualuga taimi ipu ua faʻamamafaina.

Faavasegaina o PCB ipu maualuga taimi

1, i le faaiuga o le keramika tumu thermosetting mea

Metotia o le faagasologa:

Ma epoxy resin / tioata lalaga ie (FR4) tutusa gaioiga gaioiga, ae o le ipu e sili atu gaoa, faigofie ona gagau, viliina ma gong ipu vili au ma le gong naifi olaga ua faʻaititia e 20%.

2. PTFE (polytetrafluoroethylene) mea

Metotia o le faagasologa:

1. Tatalaina mea: puipuia ata tifaga tatau ona taofia e puipuia valu ma faʻa’ū’ū

2. O le vili:

2.1 faʻaaoga se vili fou (masani 130), tasi fasi faʻapipiʻiina o le sili ona lelei, o le presser vae mamafa o 40psi

2.2 Pepa alumini e pei o le ufiufi ipu, ona faʻaaoga lea o le 1mm mafiafia ipu amine, faʻamau le ipu PTFE

2.3 Feula le efuefu mai le pu i le ea fana ina ua maeʻa le viliina

2.4 Faʻatasi ai ma le mautu nofoa viliina, viliina fuataga (masani, o le laʻititi o le pu, o le vave o le viliina fua, o le laititi Chip avega, o le laʻititi ifo o le toe foʻi fua)

3. O le pu gaioiga

Togafitiga o le Plasma poʻo le sodium – naphthalene faʻatagaina togafitiga e aoga i metallization o pores

4. PTH magoto apamemea

4.1 Ina ua maeʻa le micro-etching (o le micro-etching rate ua faʻatonutonuina e le 20 micro-inisi), ua fafagaina le ipu mai le suauʻu aveʻese ogāumu i le PTH toso

4.2 A faʻapea e tatau, alu i le lona lua PTH, naʻo le tau o le tau? Na amata ona ulu le vaʻavaʻa i le ipu

5. O le tetee uelo

5.1 Muaʻi togafitiga: faʻaaoga le fufulua ipu fufulumea nai lo le masini olo ipu

5.2 Ina ua maeʻa togafitiga muamua, tao ipu (90 ℃, 30min), palu lanumeamata lanumeamata ma faʻamalolo

5.3 Tolu ipu tao: tasi o 80 ℃, 100 ℃ ma 150 ℃ mo 30min taʻitasi (pe a fai o le suauʻu e maua i luga o le substrate luga, e mafai ona toefausiaina: fufulu ese le lanumeamata suauʻu ma toe faʻagaoioia ia)

6. laupapa Gong

Faʻapipiʻi le paʻepaʻe luga o le laupapa PTFE laupapa luga, ma faʻapipiʻi i le fr-4 base plate poʻo le fenolic base plate ma le mafiafia o le 1.0mm ma le aveʻeseina o le kopa: E pei ona faʻaalia i le ata:

O le a le PCB laupapa maualuga taimi? Faʻavasega maualuga ipu PCB maualuga taimi

Maualuga taimi ma maualuga saosaoa pepa mea

A filifilia le substrate mo PCB mo maualuga televave taʻamilosaga, faʻapitoa mafaufau tatau ona tuʻuina atu i le fesuiaʻiga o uiga o mea DK i ala eseese. Mo le manaʻoga o faʻailo maualuga-saoasaoa faʻasalalau poʻo uiga faʻafitauli impedance, DF ma lona faʻatinoina i lalo o tuutuuga o taimi, vevela ma le susu e tele lava ona suʻesuʻeina.

I lalo o le tulaga o le fesuiaiga o taimi, o le DK ma le DF aoga o mea lautele substrate mea suia tele. Ae maise lava i taimi masani mai L MHz i le L GHz, o latou DK ma DF tulaga faʻataua suia sili manino. Mo se faʻataʻitaʻiga, o le GENERAL epoxy – glass fiber substrate mea (lautele FR-4) ei ai le DK taua o le 4.7 i le lMHz ma le DK aoga o le 4.19 i le lGHz. Luga o lGHz, o lona DK aoga e suia malie. Mo se faʻataʻitaʻiga, i lalo ole l0GHz, o le DK aoga o le FR-4 o le 4.15. Mo substrate mea ma maualuga saosaoa ma maualuga taimi masani, o le DK taua suia sina. Mai lMHz i le lGHz, o le DK aoga tele nofo i totonu o le 0.02 laina. O le DK aoga e tau faʻaitiitia laititi i eseesega eseese mai lalo i le maualuga.

O le dielectric loss factor (DF) o mea lautele substrate mea e tele atu nai lo le DK ona o le aʻafiaga o le fesuiaʻiga o taimi (aemaise i le maualuga taimi laina). O le mea lea, pe a iloiloina le maualuga taimi masani o se substrate mea, tatou tatau ona taulaʻi atu i le suiga o lona DF taua. O mea e fai ma substrate ma le saoasaoa tele ma le maualuga o taimi e iloa ai e ese mai i mea lautele e fai ma mea e masani ona fai. Tasi o le ma le suiga o taimi, o lona (DF) taua suia laʻititi. O leisi e tali tutusa ma le mea lautele substrate mea i le tele o fesuiaiga, ae o lona lava (DF) taua e maualalo.

Faʻafefea ona filifili maualuga maualuga maualuga televave ipu

Filifiliga laupapa PCB tatau ona faʻamalieina manaʻoga manaʻoga, tele gaosiga ma tau o le paleni i le va. I se faapuupuuga, o le mamanu manaʻomia aofia ai le lua vaega: eletise ma fausaga faʻatuatuaina. Lenei e masani lava taua pe a fuafuaina matua maualuga tele saosaoa laupapa PCB (ala televave sili atu nai lo GHz). Mo se faʻataʻitaʻiga, o le fr-4 mea e masani ona faʻaaogaina i aso nei atonu e le talafeagai ona o le tele o le Df (Dielectricloss) i le tele o alaleo o le GHz.

O le a le PCB laupapa maualuga taimi? Faʻavasega maualuga ipu PCB maualuga taimi

Mo se faʻataʻitaʻiga, o le 10Gb / S televave televave faʻailo o se sikuea sikuea, lea e mafai ona manatu o se supeupition o sinusoidal faʻailo o eseʻese ala. O le mea lea, o le 10Gb / S o loʻo iai le tele o faʻailo masani eseese: 5Ghz faʻavae taua, 3 faʻatonuga 15GHz, 5 faʻasologa 25GHz, 7 faʻasologa 35GHz faʻailo, ma isi. O le faʻamaoni o le numera faʻailoga ma le tifato o pito i luga ma lalo e tutusa lava ma le maualalo o leiloa ma le faʻaletonu o le tuʻuina atu o le RF microwave (o le maualuga o taimi e tutusa ai vaega o faʻailoga faʻafuaseʻi ua oʻo atu i le faʻaipoipoga faʻaipoipoga). O le mea lea, i le tele o itu, o le PCB mea filifilia o maualuga-televave faʻasolosolo taʻamilosaga e tutusa ma manaʻoga o RF microwave matagaluega.

O le a le PCB laupapa maualuga taimi? Faʻavasega maualuga ipu PCB maualuga taimi

I gaioiga faʻatinoina inisinia, o le filifiliga o maualuga-taimi masani peleti foliga faigofie, ae o loʻo tele lava mea taua e tatau ona iloiloina. E ala i le faʻalauiloaina o lenei pepa, AS O se inisinia tisaini PCB poʻo se televavave taʻitaʻi taitai, Ua ou maua se mautinoa malamalama i uiga ma le filifilia o papatusi. Malamalama lelei eletise meatotino, vevela meatotino, faʻatuatuaina, ma isi Ma le faʻaaogaina tatau o le faʻapipiʻiina, fuafua se fasi maualuga faʻatuatuaina, lelei gaosi oloa, eseese mea e mafaufau ai i le sili.

Ole mea o loʻo sosoʻo mai o le a faʻalauiloaina autu autu e mafaufau ai i le filifilia o le talafeagai ipu:

1, Gaosiga:

E pei o le tele o gaioiga o gaioiga, vevela faʻatinoga, CAF / vevela teteʻe ma masini faigata (viscosity) (lelei faʻatuatuaina), afi fuaina;

2, with the product matching performance (electrical, performance stability, etc.) :

Maualalo leiloa, fale o manu Dk / Df tapulaa, maualalo faataapeapeina, laititi suiga coefficient ma taimi ma siosiomaga, laititi faapalepale o mea mafiafia ma paʻu anotusi (lelei impedance pulea), pe afai o le uaea umi, mafaufau maualalo roughness apamemea foil. I se faʻaopopoga, e manaʻomia le faʻataʻitaʻiga i le amataga o le maualuga o le saoasaoa o taʻamilosaga, ma o faʻataʻitaʻiga o taunuʻuga o le tulaga masani mo le mamanu. “Xingsen Tekonolosi – Agilent (maualuga saosaoa / RADIO taimi masani) falesuesue” fofoina le gaioiga faʻafitauli o le le ogatasi faʻaiuga iʻuga ma suʻega, ma faia se tele numera o simulation ma moni suʻega tapunia-matasele faʻamaonia, ala i se tulaga ese auala e ausia ai le tutusa o faʻataʻitaʻi ma fua.

O le a le PCB laupapa maualuga taimi? Faʻavasega maualuga ipu PCB maualuga taimi

3. Maua taimi maua mai o mea:

Tele o taimi maualuga-taimi ipu faʻatauina taamilosaga e umi lava, e oʻo lava 2-3 masina; I se faʻaopopoga i le masani maualuga maualuga ipu RO4350 o loʻo iai le lisi, tele maualuga taimi maualuga peleti manaʻomia e saunia e tagata faʻatau. O le mea lea, o le maualuga maualuga o ipu ma tagata gaosi manaʻomia manaʻomia fesoʻotaʻi muamua, i se taimi vave e mafai ai;

4. Tau o mea:

Faʻamoemoeina i le tau maaleale o le oloa, pe o se tagata faʻatau oloa, poʻo se fesoʻotaʻiga, fomaʻi, alamanuia, militeli talosaga;

5. Faʻaaogaina o tulafono ma tulafono faʻatonutonu, ma isi.

Ia agavaʻa ma tulafono o le siosiomaga o atunuʻu eseʻese ma faʻamalieina manaʻoga o RoHS ma halogen-leai se totogi.

Faʻatasi ai ma mea taua i luga, o le tamoʻe televave o le televave televave faʻamalama numera o le autu itu e mafaufau ai i PCB filifiliga. O le maualuga o le saosaoa taamilosaga, o le laitiiti le filifilia PCBDf taua tatau ona. O le matagaluega ipu ma auala ma maualalo leiloa o le a talafeagai mo 10Gb / S faʻafuainumera matagaluega; O le ipu ma maualalo leiloa e talafeagai mo 25Gb / s faʻafuainumera matagaluega; Panels ma ultra-maualalo leiloa o le a ofi vave, maualuga-saoasaoa faʻasologa numera i fua faatatau o 50Gb / s pe maualuga atu.

Mai mea Df:

Df i le va 0.01 ~ 0.005 matagaluega laupapa talafeagai mo le pito i luga tapulaʻa o 10Gb / S faʻafuainumera matagaluega;

Df i le va 0.005 ~ 0.003 matagaluega laupapa talafeagai mo le pito i luga tapulaʻa o 25Gb / S faʻafuainumera matagaluega;

O laupapa taamilosaga ma Df e le sili atu nai lo le 0.0015 e talafeagai mo le 50Gb / S poʻo le sili atu le saoasaoa faʻavaomalo taʻamilosaga.

E masani ona faʻaaogaina televave televave peleti o:

1), Rogers: RO4003, RO3003, RO4350, RO5880, ma isi

2), Taiyao TUC: Tuc862, 872SLK, 883, 933, ma isi

3), Panasonic: Megtron4, Megtron6, ma isi

4), Isola: FR408HR, IS620, IS680, ma isi

5) Nelco: N4000-13, N4000-13EPSI, ma isi

6), Dongguan Shengyi, Taizhou Wangling, Taixing Microwave, ma isi