SMT asali ilimin
1. Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwaƙwa tọn na Ƙaƙa ) .
Menene SMT:
Gabaɗaya yana nufin yin amfani da kayan haɗin kai kai tsaye don haɗa nau'in guntu-nau'in nau'in nau'in nau'in guntu da ƙaramin gubar gubar ko gajeriyar jagorar saman haɗin abubuwan / na'urori (wanda ake kira SMC/SMD, galibi ana kiran abubuwan haɗin guntu) zuwa saman allon da aka buga. (PCB) Ko wasu fasahar haɗaɗɗiyar lantarki akan ƙayyadaddun matsayi akan farfajiyar ƙasa, wanda kuma aka sani da fasahar ɗorawa saman ƙasa ko fasahar ɗorawa, ana kiranta da SMT (Surface Mount Technology).
SMT (Surface Mount Technology) fasaha ce ta masana'antu da ke tasowa a cikin masana'antar lantarki.Yunƙurinsa da saurin bunƙasa juyin juya hali ne a cikin masana'antar hada kayan lantarki.An san shi da "Rising Star" na masana'antar lantarki.Yana ƙara haɗaɗɗen haɗaɗɗiyar lantarki da sauri da sauƙi, saurin sauyawa da sauri da sauri don maye gurbin samfuran lantarki daban-daban, mafi girman matakin haɗin kai, da farashi mai rahusa, sun ba da babbar gudummawa ga saurin ci gaban IT ( Fasahar Sadarwa) masana'antu.
An haɓaka fasahar ɗorawa ta sararin sama daga fasahar kere kere na da'irori.Daga 1957 zuwa yanzu, ci gaban SMT ya wuce matakai uku:
Mataki na farko (1970-1975): Babban makasudin fasaha shine a yi amfani da kayan aikin guntu kaɗan a cikin samarwa da kera na'urar lantarki (wanda ake kira da'irorin fim mai kauri a China).Daga wannan hangen nesa, SMT yana da matukar muhimmanci ga haɗin kai Tsarin masana'antu da ci gaban fasaha na da'irori sun ba da gudummawa mai mahimmanci;a lokaci guda, SMT ya fara amfani da shi sosai a cikin samfuran farar hula irin su agogon lantarki na quartz da lissafin lantarki.
Mataki na biyu (1976-1985): don inganta saurin miniaturization da ayyuka da yawa na samfuran lantarki, kuma an fara amfani da su sosai a cikin samfuran kamar kyamarar bidiyo, rediyon lasifikan kai da kyamarori na lantarki;a lokaci guda, an ɓullo da babban adadin kayan aiki na atomatik don haɗuwa da farfajiya Bayan haɓakawa, fasahar shigarwa da kayan tallafi na sassan guntu suma sun girma, suna kafa harsashin babban ci gaban SMT.
Mataki na uku (1986-yanzu): Babban makasudin shine rage farashi da ƙara haɓaka ƙimar aiki-farashin samfuran lantarki.Tare da balagaggen fasahar SMT da haɓaka amincin tsari, samfuran lantarki da aka yi amfani da su a cikin soja da saka hannun jari (kayan aikin sadarwar kwamfuta na kwamfuta kayan aikin masana'antu) filayen sun haɓaka cikin sauri.A lokaci guda, adadi mai yawa na kayan aiki mai sarrafa kansa da hanyoyin aiwatarwa sun fito don yin abubuwan haɗin guntu Babban haɓakar saurin amfani da PCBs ya haɓaka raguwa a cikin jimlar farashin samfuran lantarki.
2. Fasalolin SMT:
① Babban taro mai yawa, ƙananan girman da nauyin haske na kayan lantarki.Girman da nauyin abubuwan SMD kusan 1/10 na abubuwan haɗin toshe-in na gargajiya ne kawai.Gabaɗaya, bayan an karɓi SMT, an rage ƙarar samfuran lantarki da 40% ~ 60% kuma an rage nauyi da 60%.~80%.
② Babban abin dogaro, ƙarfin hana jijjiga mai ƙarfi, da ƙarancin lahani na haɗin gwiwa.
③Kyakkyawan halayen mitar mitoci, rage tsangwama na lantarki da mitar rediyo.
④ Abu ne mai sauƙi don gane aiki da kai da haɓaka haɓakar samarwa.
⑤Ajiye kayan aiki, makamashi, kayan aiki, ma'aikata, lokaci, da sauransu.
3. Rarraba hanyoyin hawa saman: Dangane da matakai daban-daban na SMT, SMT ya kasu kashi-kashi cikin tsarin rarrabawa (wave soldering) da tsarin manna solder (reflow soldering).
Babban bambance-bambancen su shine:
①Tsarin kafin faci ya bambanta.Tsohuwar tana amfani da manne kuma na ƙarshen yana amfani da manna solder.
②Tsarin bayan faci ya bambanta.Tsohuwar ta wuce ta cikin tanda mai juyawa don warkar da manne da manna abubuwan da aka gyara zuwa allon PCB.Ana buƙatar sayar da igiyar ruwa;na karshen ya wuce ta cikin reflow tanda don soldering.
4. Dangane da tsarin SMT, ana iya raba shi zuwa nau'ikan nau'ikan: tsarin haɓaka mai gefe guda ɗaya, tsarin haɓaka mai gefe guda biyu, tsarin marufi gauraye biyu.
① Haɗa ta amfani da abubuwan haɗin saman dutsen kawai
A. Single-gefe taro tare da kawai surface hawa (tsari daya gefen hawa tsari) Tsari: allo bugu solder manna → hawa aka gyara → reflow soldering
B. Biyu-gefe taro tare da kawai surface hawa (biyu-gefe hawa tsari) Tsari: allo bugu solder manna → hawa aka gyara → reflow soldering → baya gefe → allo bugu solder manna → hawa aka gyara → reflow soldering
② Haɗa tare da abubuwan hawan saman ƙasa a gefe ɗaya da cakuda abubuwan haɗin saman dutsen da kuma abubuwan da ba a taɓa gani ba a ɗayan gefen (tsarin haɗuwa mai gefe biyu)
Tsari 1: Manna bugu na allo (bangaren sama) → abubuwan hawa → reflow soldering → gefen baya → rarrabawa (gefe na kasa) → kayan hawan kaya
Tsari na 2: Manna bugu na allo (bangaren sama) → kayan haɓakawa → reflow soldering → filogin inji (bangaren sama) → gefen baya → rarrabawa (gefen ƙasa) → faci → babban zafin jiki curing → soldering na igiyar ruwa
③Babban saman yana amfani da abubuwan da aka lalata kuma saman ƙasa yana amfani da abubuwan ɗorawa saman (tsarin haɗuwa mai gefe biyu)
Tsari 1: Rarraba → abubuwan hawa → babban zafin jiki na warkewa → gefen baya → shigar da kayan hannu → sayar da igiyar ruwa
Tsari 2: Filo-in inji → gefen baya → rarrabawa → faci → babban zafin jiki warkewa → sayar da igiyar ruwa
Takamaiman tsari
1. Single-gefe surface taro tsari kwarara Aiwatar solder manna zuwa Dutsen aka gyara da reflow soldering
2. Dubi-biyu surface taro tsari kwarara A gefe shafi solder manna zuwa Dutsen kayayyakin da reflow soldering kada B gefen shafi solder manna zuwa Dutsen kayayyakin da reflow soldering.
3. Haɗaɗɗen taro mai gefe guda ɗaya (SMD da THC suna gefe ɗaya) Wani gefe yana shafa manna solder zuwa Dutsen SMD reflow soldering A gefe interposing THC B gefen kalaman soldering
4. Haɗaɗɗen taro mai gefe guda ɗaya (SMD da THC suna a bangarorin biyu na PCB) Aiwatar da mannen SMD akan gefen B don hawa mannen SMD ɗin curing m A gefen saka THC B gefen kalaman solder.
5. Gauraye mai gefe biyu (THC yana gefen A, duka bangarorin A da B suna da SMD) Aiwatar da manna solder zuwa gefe A zuwa Dutsen SMD sannan a kwarara solder flip board B gefen a shafa SMD manne zuwa Dutsen SMD manne curing flip board A. gefe don saka THC B Surface igiyar igiyar ruwa
6. Haɗe-haɗe-haɗe-haɗe (SMD da THC a ɓangarorin A da B) A gefen shafa solder manna zuwa Dutsen SMD reflow soldering m B gefe shafi SMD manne hawa SMD manne curing kada A gefe saka THC B gefen kalaman soldering B- walda hannun hannu
Biyar.Ilimi bangaren SMT
Nau'o'in abubuwan da aka fi amfani da su na SMT:
1. Surface Dutsen resistors da potentiometers: rectangular guntu resistors, cylindrical kafaffen resistors, kananan kafaffen resistor cibiyoyin sadarwa, guntu potentiometers.
2. Surface Dutsen capacitors: Multilayer guntu yumbu capacitors, tantalum electrolytic capacitors, aluminum electrolytic capacitors, mica capacitors
3. Surface Dutsen Inductor: waya-rauni guntu inductor, multilayer guntu inductor
4. Magnetic Beads: Chip Bead, Multilayer Chip Bead
5. Sauran guntu aka gyara: guntu multilayer varistor, guntu thermistor, guntu surface kalaman tace, guntu multilayer LC tace, guntu multilayer jinkiri line.
6. Surface Dutsen semiconductor na'urorin: diodes, kananan shaci kunshe-kunshe transistor, kananan shaci kunshe-kunshe hadedde da'irori SOP, gubar roba kunshin hadedde da'irori PLCC, quad lebur kunshin QFP, yumbu guntu m, ƙofar tsararru kunshin BGA, CSP (Chip Scale Package)
NeoDen yana ba da cikakkiyar mafita na layin taro na SMT, gami da tanda na sake kwarara SMT, injin siyar da igiyar ruwa, na'ura mai ɗaukar hoto da wuri, firintar manna mai siyarwa, mai ɗaukar PCB, mai saukar da PCB, mai ɗaukar guntu, injin SMT AOI, injin SMT SPI, injin SMT X-Ray, SMT taron layin kayan aiki, PCB samar da kayan SMT kayayyakin gyara, da dai sauransu kowane irin SMT inji za ka iya bukatar, da fatan za a tuntube mu don ƙarin bayani:
Hangzhou NeoDen Technology Co., Ltd
Yanar Gizo1: www.smtneoden.com
Lokacin aikawa: Yuli-23-2020