Gịnị bụ Mgbakọ BGA?
Mgbakọ BGA na-ezo aka n'usoro nke itinye Ball Grid Array (BGA) n'elu PCB site na iji usoro reflow soldering. BGA bụ ihe e tinyere n'elu nke na-eji ọtụtụ bọọlụ solder maka njikọ eletriki. Ka bọọdụ sekit na-agafe na oven reflow solder, bọọlụ solder ndị a na-agbaze, na-emepụta njikọ eletriki.
Nkọwa nke BGA
BGA: Ngwakọta Bọọlụ Grid
Nhazi nke BGA
PBGA: plastikBGA nke ejiri plastik kpuchie BGA
CBGA: BGA maka ngwugwu seramiiki BGA
CCGA: Ogidi seramiiki BGA ogidi seramiiki
E tinyere BGA n'ụdị dị mma
TBGA: teepu BGA nwere kọlụm grid bọọlụ
Nzọụkwụ nke Mgbakọ BGA
Usoro nhazi BGA na-agụnyekarị usoro ndị a:
Nkwadebe PCB: A na-akwadebe PCB site n'itinye ihe mkpuchi solder na pads ebe a ga-etinye BGA. Ihe mkpuchi solder bụ ngwakọta nke ihe mkpuchi solder na flux, nke na-enyere aka na usoro ịgbado ọkụ.
Ntinye nke BGAs: A na-etinye BGAs, nke nwere chip sekit agbakwunyere nke nwere bọọlụ solder n'ala, n'elu PCB akwadoro. A na-ejikarị igwe ahọrọ na-akpaghị aka ma ọ bụ ngwa mgbakọ ndị ọzọ eme nke a.
Ịgbagharị Mgbagharị: A na-agafe PCB a chịkọtara ya na BGA ndị e tinyere n'ime oven mgbagharị. Oven mgbagharị ahụ na-ekpo PCB ọkụ ruo n'ọnọdụ okpomọkụ kpọmkwem nke na-agbaze ihe mgbagharị agbagharị, na-eme ka bọọlụ mgbagharị nke BGA ndị ahụ gbapụta ọzọ ma guzobe njikọ eletriki na pad PCB.
Oyi na Nnyocha: Mgbe usoro mgbanwe nke solder gasịrị, a na-ajụ oyi PCB iji mee ka njikọ solder sie ike. A na-enyocha ya maka ntụpọ ọ bụla, dị ka nhazi na-adịghị mma, obere mkpụmkpụ, ma ọ bụ njikọ mepere emepe. Enwere ike iji nyocha anya akpaka (AOI) ma ọ bụ nyocha X-ray maka ebumnuche a.
Usoro nke Abụọ: Dabere na ihe achọrọ kpọmkwem, enwere ike ime usoro ndị ọzọ dịka nhicha, nnwale, na mkpuchi nhazi mgbe emechara BGA iji hụ na a pụrụ ịtụkwasị obi na ịdị mma nke ngwaahịa emechara.
Uru nke Mgbakọ BGA
BGA Ball Grid Array
EBGA 680L
LBGA 160L
Ngwakọta bọọlụ plastik PBGA 217L
SBGA 192L
TSBGA 680L
CLCC
CNR
CPGA Ceramic Pin Grid Array
Ngwugwu DIP Abụọ n'ime ahịrị
DIP-taabụ
FBGA
1. Obere akara ukwu
Ngwugwu BGA nwere chip, njikọ, obere ihe dị mkpa, na mkpuchi mkpuchi. E nwere ihe ole na ole a na-ekpughe, ngwugwu ahụ nwekwara obere ọnụọgụ nke ntụtụ. Ogologo chip dị na PCB nwere ike ịdị ala ruo milimita 1.2.
2. Ike siri ike
Ngwugwu BGA siri ike nke ukwuu. N'adịghị ka QFP nwere pitch 20mil, BGA enweghị pin nke nwere ike ịgbagọ ma ọ bụ gbajie. N'ozuzu, iwepụ BGA chọrọ iji ebe a na-arụgharị BGA n'oge okpomọkụ dị elu.
3. Mbelata na ike nke parasitic inductance
N'ihi obere ntụtụ na ịdị elu dị ala nke njikọta, ngwugwu BGA na-egosipụta obere inductance na capacitance, nke na-eme ka arụmọrụ eletriki dị mma.
4. Mmụba ohere nchekwa
Ma e jiri ya tụnyere ụdị nkwakọ ngwaahịa ndị ọzọ, nkwakọ ngwaahịa BGA nwere naanị otu ụzọ n'ụzọ atọ nke olu ya na ihe dị ka ugboro 1.2 nke mpaghara mgbawa. Ngwaahịa ebe nchekwa na ọrụ nke na-eji nkwakọ ngwaahịa BGA nwere ike ime ka ikike nchekwa na ọsọ ọrụ dịkwuo elu karịa okpukpu 2.1.
5. Nkwụsi ike dị elu
N'ihi ndọtị kpọmkwem nke pin site na etiti chip na ngwugwu BGA, ụzọ nnyefe maka akara dị iche iche na-ebelata nke ọma, na-ebelata mbelata mgbaàmà ma na-eme ka ọsọ nzaghachi na ikike mgbochi mgbochi dịkwuo mma. Nke a na-eme ka nkwụsi ike nke ngwaahịa ahụ dịkwuo elu.
6. Ọkụ dị mma nke ukwuu
BGA na-enye arụmọrụ dị mma nke mkpofu okpomọkụ, yana okpomọkụ chip na-eru nso okpomọkụ gburugburu ebe obibi n'oge ọrụ.
7. Dị mfe maka ịrụgharị ọrụ
A na-ahazi ntụtụ nke ngwugwu BGA nke ọma n'ala, nke na-eme ka ọ dị mfe ịchọta ebe ndị mebiri emebi maka iwepụ. Nke a na-eme ka mmegharị nke ibe BGA dị mfe.
8. Izere ọgba aghara waya
Ngwugwu BGA na-enye ohere itinye ọtụtụ ntụtụ ike na ala n'etiti, yana ntụtụ I/O n'akụkụ ya. Enwere ike ịme nhazi tupu oge eruo na substrate BGA, na-ezere waya ọgba aghara nke ntụtụ I/O.
Ike Mgbakọ RichPCBA BGA
RICHPCBA bụ ụlọ ọrụ a ma ama n'ụwa niile maka imepụta PCB na njikọta PCB. Ọrụ njikọta BGA bụ otu n'ime ọtụtụ ụdị ọrụ anyị na-enye. PCBWay nwere ike inye gị njikọta BGA dị elu ma dị ọnụ ala maka PCB gị. Oke kacha nta maka njikọta BGA nke anyị nwere ike ịnabata bụ 0.25mm 0.3mm.
Dịka onye na-enye ọrụ PCB nwere ahụmịhe afọ 20 n'ịmepụta, imepụta na ijikọ PCB, RICHPCBA nwere ezigbo ahụmịhe. Ọ bụrụ na achọrọ maka njikọta BGA, biko nweere onwe gị ịkpọtụrụ anyị!