SMT isi ihe ọmụma
1. Ugwu teknụzụ dị n'elu-SMT (Nkà na ụzụ dị elu)
Kedu ihe bụ SMT:
N'ozuzu na-ezo aka iji ngwa mgbakọ akpaka ka itinye aka ozugbo na ụdị mgbawa na obere ihe na-enweghị isi ma ọ bụ nke dị mkpụmkpụ na-eduga n'elu mgbakọ / ngwaọrụ (nke a na-akpọ SMC/SMD, nke a na-akpọkarị mgbawa components) n'elu nke mpempe akwụkwọ sekit. (PCB) Ma ọ bụ teknụzụ mgbakọ eletrọnịkị ndị ọzọ na ọnọdụ a kapịrị ọnụ n'elu nke mkpụrụ, nke a makwaara dị ka teknụzụ mgbago elu ma ọ bụ teknụzụ elu elu, nke akpọrọ SMT (Surface Mount Technology).
SMT (Surface Mount Technology) bụ teknụzụ mmepụta ihe na-apụta na ụlọ ọrụ eletrọnịkị.Ọganihu ya na mmepe ngwa ngwa bụ mgbanwe na ụlọ ọrụ mgbakọ eletrọnịkị.A maara ya dị ka "Rising Star" nke ụlọ ọrụ eletrọnịkị.Ọ na-eme ka mgbakọ eletrọnịkị na-emewanyewanye ngwa ngwa ma dị mfe, ngwa ngwa na ngwa ngwa ngbanwe nke ngwaahịa eletrọnịkị dị iche iche, ọkwa dị elu nke ntinye ọnụ, na ọnụ ala dị ọnụ ala, emeela nnukwu onyinye na mmepe ngwa ngwa nke IT ( Ozi Technology) ụlọ ọrụ.
A na-emepụta teknụzụ mgbago elu site na teknụzụ nrụpụta nke sekit akụrụngwa.Site na 1957 ruo ugbu a, mmepe nke SMT agabigala usoro atọ:
Nkeji mbụ (1970-1975): Ebumnuche teknụzụ bụ isi bụ itinye ihe mgbawa dị ntakịrị na mmepụta na imepụta ọkụ eletrik ngwakọ (nke a na-akpọ sekit ihe nkiri siri ike na China).Site n'echiche a, SMT dị ezigbo mkpa maka ntinye aka Usoro mmepụta na nkà na ụzụ mmepe nke sekit enyela nnukwu onyinye;N'otu oge ahụ, SMT amalitela iji ya mee ihe na ngwaahịa ndị nkịtị dị ka elekere eletrọnịkị quartz na ihe mgbako eletrọnịkị.
Nke abụọ ogbo (1976-1985): na-akwalite ngwa ngwa miniaturization na multi-functionalization nke electronic ngwaahịa, na malitere na-ọtụtụ-eji na ngwaahịa ndị dị otú ahụ dị ka video ese foto, headset redio na electronic ese foto;n'otu oge ahụ, e mepụtara ọnụ ọgụgụ dị ukwuu nke ngwá ọrụ akpaaka maka mgbakọ elu mgbe mmepe ahụ gasịrị, nkà na ụzụ ntinye na ihe nkwado nke ihe mgbawa ahụ aghọwokwa ndị tozuru okè, na-atọ ntọala maka nnukwu mmepe nke SMT.
Nkeji nke atọ (1986-ugbu a): Ebumnuche bụ isi bụ ibelata ọnụ ahịa yana imeziwanye ọnụ ahịa ọnụahịa nke ngwaahịa eletrọnịkị.Site na ntozu nke teknụzụ SMT na nkwalite usoro ntụkwasị obi, ngwaahịa eletrọnịkị nke a na-eji na ndị agha na itinye ego (ngwa ngwa nzikọrịta ozi kọmputa na akụrụngwa ụlọ ọrụ) ubi etolitela ngwa ngwa.N'otu oge ahụ, ọnụ ọgụgụ dị ukwuu nke ngwá ọrụ mgbakọ na-akpaghị aka na usoro usoro apụtawo iji mee ihe mgbawa ngwa ngwa na-eto ngwa ngwa n'iji PCB eme ihe emewo ka mbelata nke ọnụ ahịa eletrọnịkị.
2. Akụkụ nke SMT:
① Nnukwu njupụta mgbakọ, obere nha na ịdị arọ nke ngwaahịa eletrọnịkị.Olu na ịdị arọ nke ngwa SMD bụ naanị ihe dịka 1/10 nke ngwa nkwụnye ọdịnala.N'ozuzu, mgbe a nakweere SMT, a na-ebelata olu nke ngwaahịa eletrọnịkị site na 40% ~ 60% na ịdị arọ na-ebelata site na 60%.~80%.
②Ntụkwasị obi dị elu, ikike mgbochi ịma jijiji siri ike, yana ọnụego nkwarụ nkwonkwo dị ala.
③ Ọmarịcha njirimara ugboro ugboro dị elu, na-ebelata nnyonye anya oge redio.
④ Ọ dị mfe ịghọta akpaaka ma melite nrụpụta nrụpụta.
⑤ Chekwaa ihe, ike, akụrụngwa, ikike mmadụ, oge, wdg.
3. Nkewa nke elu ugwu ụzọ: Dị ka usoro dị iche iche nke SMT, SMT na-ekewa na-ekesa usoro (ebili mmiri soldering) na solder mado usoro (reflow soldering).
Isi ihe dị iche ha bụ:
① Usoro tupu patching dị iche.Nke mbụ na-eji patch gluu ma nke ikpeazụ na-eji tapawa solder.
② Usoro mgbe patching dị iche.Nke mbụ na-agafe na oven reflow iji gwọọ gluu na mado ihe ndị ahụ na bọọdụ PCB.A na-achọ ịkwanye ebili mmiri;nke ikpeazụ na-agafe na oven reflow maka soldering.
4. Dị ka usoro nke SMT si dị, enwere ike kewaa ya n'ime ụdị ndị a: usoro ntinye nke otu akụkụ, usoro ntinye okpukpu abụọ, usoro nchịkọta ngwakọta nke okpukpu abụọ.
①Gbakọta na-eji naanị ihe mgbago elu elu
A. Mgbakọ nwere otu akụkụ na naanị nrịgo elu (usoro ntinye nke otu akụkụ) Usoro: mpempe akwụkwọ na-ebi akwụkwọ solder mado → arịọnụ ihe → reflow soldering
B. Mgbakọ nwere akụkụ abụọ na naanị nrụnye elu (usoro nrụnye akụkụ abụọ) Usoro: mpempe akwụkwọ na-ebi akwụkwọ solder mado → arịọnụ components → reflow soldering → reverse side → screen printing solder paste → arịọnụ components → reflow soldering
② Kpọkọtanụ ihe ndị na-ebuli elu n'elu otu akụkụ na ngwakọta nke ihe ndị na-ebuli elu na ihe ndị nwere perforated n'akụkụ nke ọzọ (usoro mgbakọ ngwakọta nwere akụkụ abụọ)
Usoro 1: Mpempe akwụkwọ na-ebi akwụkwọ na ihuenyo (n'akụkụ elu) → ihe ndị na-arị elu → reflow soldering → reverse side → dispensing (akụkụ ala) → arịọnụ akụrụngwa → elu okpomọkụ ọgwụgwọ → reverse akụkụ → aka-etinyere components → ife soldering
Usoro 2: Mpempe akwụkwọ na-ebi akwụkwọ na ihuenyo (n'akụkụ elu) → ihe ndị na-arị elu → reflow soldering → igwe nkwụnye ihe (n'akụkụ elu) → n'akụkụ azụ → nkesa (n'akụkụ ala) → patch → elu okpomọkụ ọgwụgwọ → ebili mmiri soldering
③N'elu elu na-eji perforated components na ala n'elu na-eji elu ugwu components (okpukpu agwakọtara usoro nhazi)
Usoro 1: Na-ekesa → ihe na-ebuli elu → ọgwụgwọ dị elu → akụkụ azụ → ntinye aka aka → ire ere ọkụ
Usoro 2: nkwụnye igwe → akụkụ azụ → na-ekesa → patch → ọgwụgwọ okpomọkụ dị elu → ire ere mmiri
Usoro akọwapụtara
1. Single-kwadoro elu mgbakọ usoro eruba Tee solder mado ka ugwu components na reflow soldering
2. Ugboro abụọ n'elu elu mgbakọ usoro eruba A n'akụkụ emetụta solder mado ka ugwu components na reflow soldering flap B akụkụ emetụta solder mado na ugwu components na reflow soldering.
3. Otu akụkụ agwakọta ọnụ (SMD na THC bụ n'otu akụkụ) A n'akụkụ emetụta solder mado na ugwu SMD reflow soldering A akụkụ interposing THC B akụkụ ife soldering.
4. Mgbakọ agwakọta otu akụkụ (SMD na THC dị n'akụkụ abụọ nke PCB) Tinye nrapado SMD n'akụkụ B iji bulie SMD nrapado curing flap A n'akụkụ fanye THC B akụkụ ife solder.
5. Ihe nrịgo agwakọta nke nwere akụkụ abụọ (THC dị n'akụkụ A, n'akụkụ abụọ A na B nwere SMD) Tinye tapawa solder n'akụkụ A iji bulie SMD wee na-asọba solder flip board B akụkụ tinye SMD gluu na ugwu SMD gluu curing flip board A. N'akụkụ iji tinye THC B elu igwe ebili mmiri
6. Mgbakọ agwakọta nwere akụkụ abụọ (SMD na THC n'akụkụ abụọ nke A na B) A n'akụkụ tinye solder mado na ugwu SMD reflow soldering flap B akụkụ tinye SMD gluu arịọnụ SMD gluu curing flap A n'akụkụ fanye THC B akụkụ ife soldering B- n'akụkụ akwụkwọ ntuziaka ịgbado ọkụ
Ise.Ihe ọmụma akụkụ SMT
Ụdị akụrụngwa SMT a na-ejikarị:
1. N'elu elu ugwu resistors na potentiometers: akụkụ anọ mgbawa resistors, cylindrical ofu resistors, obere ofu resistor netwọk, mgbawa potentiometers.
2. N'elu elu capacitors: multilayer mgbawa seramiiki capacitors, tantalum electrolytic capacitors, aluminum electrolytic capacitors, mica capacitors.
3. Inductor na-ebugo elu elu: ndị na-emepụta ihe mgbawa nke waya, multilayer mgbawa inductor
4. Magnetic Beads: Chip Bead, Multilayer Chip Bead
5. Ihe mgbawa ndị ọzọ: mgbawa multilayer varistor, mgbawa thermistor, mgbawa elu ebili mmiri nzacha, mgbawa multilayer LC filter, mgbawa multilayer egbu oge ahịrị.
6. Ngwunye elu semiconductor ngwaọrụ: diodes, obere ihe ndepụta ngwugwu transistors, obere ndepụta ngwugwu jikọtara sekit SOP, leded plastic ngwugwu integrated sekit PLCC, quad flat ngwugwu QFP, seramiiki mgbawa ụgbọelu, ọnụ ụzọ array spherical ngwugwu BGA, CSP (Chip Scale Package)
NeoDen na-enye azịza ahịrị ahịrị SMT zuru ezu, gụnyere SMT reflow oven, igwe na-ere ọkụ, igwe na-eburu na ebe, igwe nbipute solder, PCB loader, PCB unloader, mgbawa mgbawa, igwe SMT AOI, igwe SMT SPI, igwe SMT X-Ray, SMT mgbakọ ahịrị akụrụngwa, PCB mmepụta Equipment SMT akụkụ mapụtara, wdg ụdị ọ bụla SMT igwe ị nwere ike chọrọ, biko kpọtụrụ anyị maka ozi ndị ọzọ:
Oge nzipu: Jul-23-2020