Ndezvipi Zvakanakira zveSMT Processing Technology?

SMT process process:

Chekutanga pamusoro rakadhindwa redunhu bhodhi solder unhani solder namira, zvakare pamweSMT muchinazvikamu zve metallized terminal kana pini nenzira kwayo pane yekubatanidza padhi ye solder paste, wobva waisa PCB ine zvikamu mureflow ovenyakazara inopisa kusvika pakunyunguduka solder paste, mushure mekutonhora, solder paste, solder kurapa inowanikwa pakati pezvikamu uye yakadhindwa dunhu remagetsi nemagetsi.Ndezvipi zvakanakira SMT kugadzirisa tekinoroji?

I. Kuvimbika kwepamusoro uye kusimba kwakasimba kwekudengenyeka

SMT kugadzirisa INOSHANDISA chip components, yakakwirira kuvimbika, diki uye chiedza mudziyo, saka vibration kuramba kwakasimba, uchishandisa otomatiki kugadzirwa, nekuvimbika kwakanyanya, kazhinji murombo solder joint rate isingasviki chimwechete pamusoro pezviuru gumi, yakaderera pane gomba plugging component wave. solder tekinoroji yakarongeka yehukuru, kuve nechokwadi chekuti zvigadzirwa zvemagetsi kana zvikamu zvinotengeswa zvakaderera, Parizvino, ingangoita 90% yezvigadzirwa zvemagetsi zvinotora tekinoroji yeSMT.

II.Zvigadzirwa zvemagetsi zvidiki muhukuru uye zvakakwirira mukuwanda kwegungano

Huwandu uye huremu hwezvinhu zveSMT zvinongosvika 1/10 yeaya echinyakare plug-in zvikamu.Kazhinji, tekinoroji yeSMT inogona kuderedza huwandu uye huremu hwezvigadzirwa zvemagetsi ne40% -60% uye 60% -80%, zvichiteerana.Iyo SMT SMT kugadzirisa uye mameseji emagetsi grid kubva pa1.27mm kusvika kune iripo 0.63mm grid, mamwe anosvika 0.5mm grid, kuburikidza negomba rekuisa tekinoroji yekuisa zvinhu, inogona kuita kuti density yegungano ikwire.

III.High frequency maitiro, yakavimbika kuita

Nekuda kwekunamatira kwakasimba kweiyo chip zvikamu, chishandiso chinowanzo tungamira kana chipfupi, icho chinoderedza pesvedzero yeparasitic inductance uye parasitic capacitance, inovandudza yakakwirira-frequency maitiro edunhu, uye inoderedza electromagnetic uye rf kupindira.SMC uye SMD dzakagadzirwa maseketi ane yakanyanya frequency ye3GHz, nepo chip zvikamu zvinongova 500MHz, izvo zvinogona kupfupisa kutapurirana kunonoka nguva.Inogona kushandiswa mumaseketi ane wachi frequency pamusoro pe16MHz.Iine tekinoroji yeMCM, iyo yakakwira yekupedzisira wachi frequency yekombuta yekushandira inogona kusvika 100MHz, uye kuwedzera kwesimba kushandiswa kunokonzerwa neparasitic reactance kunogona kudzikiswa ne2-3 nguva.

IV.Kuvandudza kugadzirwa uye kuona otomatiki kugadzirwa

Kuti ive yakazara otomatiki, perforated PCB kukwira parizvino inoda kuwedzera 40% munzvimbo yepakutanga PCB kuitira kuti gungano remusoro weotomatiki plug-in rinogona kuisa chikamu, zvikasadaro hapana nzvimbo yakakwana yekupwanya chikamu.Otomatiki SMT muchina (SM421/SM411) inoshandisa vacuum nozzle suction uye discharge element, vacuum nozzle idiki pane chitarisiko chechikamu, asi vandudza kuisirwa density.Muchokwadi, zvidiki zvidiki uye yakanaka spacing QFP inogadzirwa neotomatiki SMT muchina kuti uwane yakazara otomatiki kugadzirwa.

V. Deredza mari uye mari

1. Nzvimbo yekushandiswa kwebhodhi yakadhindwa yakaderedzwa, uye nzvimbo yacho ndeye 1/12 yeiyo ye-by-hole teknolojia.Kana iyo CSP yekumisikidza ikagamuchirwa, nzvimbo yacho ichaderedzwa zvakanyanya.

2. Nhamba yemakomba ekuchera pabhodhi rakadhindwa yakaderedzwa kuchengetedza mari yekugadzirisa.

3. Pamusana pekuvandudzwa kwemaitiro e-frequency, mari yekutenderera kwedunhu inoderedzwa.

4. Nekuda kwehukuru hudiki uye huremu huremu hwezvikamu zvechip, iyo yekurongedza, yekufambisa uye yekuchengetedza mari inoderedzwa.

5. SMT SMT yekugadzirisa tekinoroji inogona kuchengetedza zvinhu, simba, midziyo, manpower, nguva, nezvimwe, inogona kuderedza mutengo kusvika ku30% -50%.