Gịnị bụ Rigid Flex PCB Stackup

N’ụwa nkà na ụzụ na-eji ngwa ngwa taa, ngwa eletrọnịkị na-adịwanye elu na kọmpat. Iji gboo mkpa nke ngwaọrụ ọgbara ọhụrụ ndị a, bọọdụ sekit (PCBs) na-aga n'ihu na-agbanwe ma na-etinye usoro nhazi ọhụrụ. Otu teknụzụ dị otú ahụ bụ stackup pcb flex siri ike, nke na-enye ọtụtụ uru na usoro mgbanwe na ntụkwasị obi.Ntuziaka a zuru oke ga-enyocha ihe nchịkọta bọọdụ sekit siri ike bụ, uru ya na ihe owuwu ya.

Tupu ịbanye n'ime nkọwa, ka anyị buru ụzọ gafee isi ihe gbasara PCB stackup:

PCB stackup na-ezo aka nhazi nke bọọdụ sekit dị iche iche n'ime otu PCB. Ọ na-agụnye ijikọta ihe dị iche iche iji mepụta mbadamba multilayer nke na-enye njikọ eletrik. N'ọdịnala, iji PCB nchịkọta siri ike, naanị ihe ndị siri ike ka a na-eji maka bọọdụ dum. Agbanyeghị, site na iwebata ihe ndị na-agbanwe agbanwe, echiche ọhụrụ pụtara—nchịkọta PCB siri ike.

Yabụ, kedu ihe bụ laminate siri ike?

Mpempe PCB siri ike na-agbanwe agbanwe bụ bọọdụ sekit ngwakọ na-ejikọta ihe PCB siri ike yana na-agbanwe agbanwe. Ọ na-enwe mgbanwe n'ígwé ndị siri ike na nke na-agbanwe agbanwe, na-ekwe ka bọọdụ ahụ na-ehulata ma ọ bụ gbanwee ka ọ dị mkpa ka ọ na-ejigide iguzosi ike n'ezi ihe nhazi ya na ọrụ eletrik. Ngwakọta pụrụ iche a na-eme ka stackups PCB siri ike dị mma maka ngwa ebe oghere dị oke mkpa yana ngbanwe siri ike dị ka wearables, akụrụngwa ikuku, na ngwaọrụ ahụike.

Ugbu a, ka anyị nyochaa uru dị n'ịhọrọ nchịkọta PCB siri ike maka ngwa eletrọnịkị gị.

Nke mbụ, mgbanwe ya na-enye ohere ka osisi ahụ dabara n'ime oghere siri ike ma kwekọọ n'ụdị na-adịghị mma, na-eme ka ohere dị ukwuu dịkwuo elu. Mgbanwe a na-ebelatakwa nha na ịdị arọ nke ngwaọrụ ahụ site n'iwepụ mkpa njikọ na wiring ọzọ. Na mgbakwunye, enweghị njikọ na-ebelata ihe ndị nwere ike ịda ada, na-abawanye ntụkwasị obi. Na mgbakwunye, mbelata nke wiring na-eme ka iguzosi ike n'ezi ihe mgbaàmà ma belata okwu nnyonye anya electromagnetic (EMI).

Owuwu nke PCB stackup siri ike na-agụnye ọtụtụ isi ihe:

Ọ na-enwekarị ọtụtụ n'ígwé siri ike jikọtara ya na akwa na-agbanwe agbanwe. Ọnụ ọgụgụ nke ọkwa na-adabere na mgbagwoju anya nke nhazi sekit na ọrụ a chọrọ. N'ígwé ndị siri ike na-enwekarị FR-4 ọkọlọtọ ma ọ bụ laminates dị elu, ebe akwa na-agbanwe agbanwe bụ polyimide ma ọ bụ ihe ndị yiri ya. Iji hụ na njikọ eletrik kwesịrị ekwesị n'etiti akwa akwa siri ike na nke na-agbanwe agbanwe, a na-eji ụdị nrapado pụrụ iche a na-akpọ anisotropic conductive adhesive (ACA). Ihe nrapado a na-enye ma njikọ eletriki na ígwè ọrụ, na-ahụ na arụmọrụ a pụrụ ịdabere na ya.

Iji ghọta nhazi nke PCB mkpọkọ, nke a bụ ndakpọ nke nhazi bọọdụ PCB 4-layer rigid-flex:

oyi akwa:
Green solder mask bụ mkpuchi nchebe etinyere na PCB (Boọdụ Circuit Ebipụtara)
Layer 1 (Igbo akara):
Ihe mkpuchi ọla kọpa nwere akara ọla kọpa.
oyi akwa 2 (Imiri oyi akwa/dielectric):
FR4: Nke a bụ ihe mkpuchi a na-ejikarị na PCBs, na-enye nkwado igwe na ikewapụ ọkụ eletrik.
Layer 3 (Flex Layer):
PP: Polypropylene (PP) akwa mkpuchi nwere ike inye nchebe na bọọdụ sekit
Layer 4 (Flex Layer):
Mkpuchi oyi akwa PI: Polyimide (PI) bụ ihe na-agbanwe agbanwe na nke na-ekpo ọkụ na-eji dị ka oyi akwa mkpuchi nchebe na akụkụ mgbanwe nke PCB.
Ihe mkpuchi mkpuchi AD: na-enye nchebe maka ihe ndị dị n'okpuru site na mmebi site na gburugburu mpụga, kemịkalụ ma ọ bụ ncha anụ ahụ
Layer 5 (Flex Layer):
Ala ọla kọpa: oyi akwa ọla kọpa ọzọ, nke a na-ejikarị maka akara mgbaàmà ma ọ bụ nkesa ike.
Layer 6 (Flex Layer):
PI: Polyimide (PI) bụ ihe na-agbanwe agbanwe na nke na-ekpo ọkụ nke a na-eji dị ka oyi akwa na akụkụ mkpụkọ nke PCB.
Layer 7 (Flex Layer):
Ala ọla kọpa: Ma akwa ọla kọpa ọzọ, nke a na-ejikarị maka akara mgbaàmà ma ọ bụ nkesa ike.
Layer 8 (Flex Layer):
PP: Polypropylene (PP) bụ ihe na-agbanwe agbanwe nke a na-eji na akụkụ mpịachi nke PCB.
Cowerlayer AD: na-enye nchebe maka ihe dị n'okpuru site na mmebi site na gburugburu mpụga, kemịkalụ ma ọ bụ ncha anụ ahụ
Mkpuchi oyi akwa PI: Polyimide (PI) bụ ihe na-agbanwe agbanwe na nke na-ekpo ọkụ na-eji dị ka oyi akwa mkpuchi nchebe na akụkụ mgbanwe nke PCB.
Layer 9 (Igbo dị n'ime):
FR4: Agụnyere oyi akwa FR4 ọzọ maka nkwado igwe ọzọ yana ikewapụ ọkụ eletrik.
Layer 10 (Igbo ala):
Ihe mkpuchi ọla kọpa nwere akara ọla kọpa.
N'okpuru oyi akwa:
Green soldermask.

Biko mara na maka ntule ziri ezi na nleba anya imewe akọwapụtara, a na-atụ aro ka gị na onye nrụpụta PCB ma ọ bụ onye nrụpụta nwere ike ịnye nyocha zuru oke na ndụmọdụ dabere na ihe achọrọ na mgbochi gị.

Na nchịkọta:

Mkpokọta PCB na-agbanwe agbanwe bụ ihe ngwọta ọhụrụ na-ejikọta uru nke ihe PCB siri ike na nke na-agbanwe agbanwe. Mgbanwe ya, compactness na ntụkwasị obi na-eme ka ọ dị mma maka ngwa dị iche iche na-achọ njikarịcha oghere na ịgbagọ ike. Ịghọta ihe ndị bụ isi nke stackups rigid-flex stackups na ihe owuwu ha nwere ike inyere gị aka ime mkpebi ziri ezi mgbe ị na-emepụta na ịmepụta ngwaọrụ eletrọnịkị. Ka teknụzụ na-aga n'ihu na-aga n'ihu, ọchịchọ maka nchịkọta PCB siri ike ga-abawanye, ihe ịrụ ụka adịghị ya na ọ ga-abawanye mmepe na mpaghara a.