Mmeghe nke SMD
SMT patch na-ezo aka na mbiri nke usoro usoro a na-ahazi na ndabere nke PCB.PCB (Printed Circuit Board) bụ bọọdụ sekit e biri ebi.
SMT bụ Surface Ugwu Teknụzụ (Surface Mount Technology) (abbreviation for Surface Mounted Technology), nke bụ teknụzụ na usoro kachasị ewu ewu na ụlọ ọrụ mgbakọ eletrọnịkị.
Teknụzụ mgbakọ elektrọnik n'elu igwe (Surface Mount Technology, SMT), nke a maara dị ka ugwu ugwu ma ọ bụ teknụzụ mgbago elu.Ọ bụ ụdị nke na-abụghị pin ma ọ bụ obere-edu elu ugwu components (SMC/SMD maka mkpụmkpụ, Chinese na-akpọ mgbawa components) n'ịnyịnya n'elu nke e biri ebi sekit osisi (Printed Circuit Board, PCB) ma ọ bụ n'elu nke ọzọ substrates, site na mgbakọ sekit na teknụzụ njikọ nke a na-ere ma na-agbakọta site na ụzọ ndị dị ka reflow soldering ma ọ bụ itinye ire ere.
N'okpuru ọnọdụ nkịtị, ngwaahịa eletrọnịkị anyị na-eji bụ PCB gbakwunyere capacitors dị iche iche, resistors na ngwa elektrọn ndị ọzọ dị ka eserese sekit a haziri, yabụ ụdị ngwa eletriki niile chọrọ teknụzụ nhazi mgbawa SMT dị iche iche iji hazie, ọrụ ya bụ leak solder mado ma ọ bụ kwachie gluu na pads nke PCB iji kwadebe maka soldering nke components.Ngwa eji eme ihe bụ igwe na-ebi akwụkwọ ihuenyo (igwe na-ebi akwụkwọ), nke dị n'ihu n'ihu usoro mmepụta SMT.
Basic usoro nke SMT
1. Mbipụta (mbipụta silk): Ọrụ ya bụ ibipụta tapawa solder ma ọ bụ kpachie nrapado n'elu paịlị nke PCB iji kwadebe maka ire ihe.Ngwa eji eme ihe bụ igwe eji ebi akwụkwọ (igwe na-ebi akwụkwọ), nke dị n'ihu n'ihu usoro mmepụta SMT.
2. Glue dispense: Ọ bụ ịkwanye gluu n'elu ebe a kapịrị ọnụ nke bọọdụ PCB, ọrụ ya bụ isi bụ idozi ihe ndị ahụ na bọọdụ PCB.Ngwa eji eme ihe bụ onye na-ekesa gluu, nke dị n'ihu n'ihu usoro mmepụta SMT ma ọ bụ n'azụ ngwá ọrụ nyocha.
3. Ịkwado: Ọrụ ya bụ iji wụnye ihe ndị dị n'elu elu n'ụzọ ziri ezi na ọnọdụ a kapịrị ọnụ nke PCB.Ngwa eji eme ihe bụ igwe ntinye, nke dị n'azụ igwe na-ebipụta ihuenyo na akara mmepụta SMT.
4. Ngwọta: Ọrụ ya bụ ịgbaze ihe nrapado ahụ, nke mere na ihe ndị dị n'elu elu na osisi PCB na-ejikọta ọnụ.Ngwa eji eme ihe bụ oven nke na-agwọ ọrịa, nke dị n'azụ igwe ntinye n'ahịrị mmepụta SMT.
5. Reflow soldering: Ya ọrụ bụ agbaze solder mado, nke mere na elu ugwu components na PCB osisi na-ike bonded ọnụ.Ngwa eji eme ihe bụ igwe na-agbagharị ọkụ / igwe na-efegharị, nke dị n'azụ igwe ntinye n'ahịrị mmepụta SMT.
6. Nhicha: Ọrụ ya bụ iwepụ ihe ndị na-emebi emebi na-emerụ ahụ mmadụ dị ka flux na bọọdụ PCB gbakọtara.Ngwa eji eme ihe bụ igwe ịsa akwa, ebe enwere ike ọ gaghị edozi ya, n'ịntanetị ma ọ bụ na-anọghị n'ịntanetị.
7. Nyocha: Ọrụ ya bụ iji nyochaa àgwà ịgbado ọkụ na àgwà mgbakọ nke osisi PCB gbakọtara.Ngwa eji eme ihe na-agụnye iko na-ebuwanye ibu, microscope, onye na-ahụ maka ịntanetị (ICT), onye na-agba ọsọ na-efe efe, nyocha nyocha akpaka (AOI), usoro nyocha X-RAY, onye nyocha ọrụ, wdg. Enwere ike ịhazi ọnọdụ ahụ na ebe kwesịrị ekwesị na ahịrị mmepụta. dị ka mkpa nke nchọpụta.
The SMT usoro nwere ike ukwuu melite mmepụta arụmọrụ na izi ezi nke e biri ebi sekit mbadamba, na-aghọta n'ezie akpaaka na uka mmepụta nke PCBA.
Ịhọrọ akụrụngwa mmepụta nke dabara na ị nwere ike nweta ugboro abụọ ugboro abụọ na ọkara mgbalị.Chengyuan Industrial Automation na-enye enyemaka na ọrụ nkwụsịtụ maka SMT na PCBA, ma na-ahazi atụmatụ mmepụta kacha mma maka gị.
Oge nzipu: Mar-08-2023