Ese imirongo ya Aluminiyumu itwikiriye ishobora gutanga EMI nziza ya Next-Gen AI Supercomputer?

Nkuko ubutaha-gen Artificial Intelligence (AI) yububiko bwububiko (nkibice byinshi bya kW GPU / NPU, imiyoboro ihuza optique ihuza imiyoboro myinshi, hamwe n’umuvuduko ukabije w’amazi akonje ya compte) igipimo cyashize 100 GHz  ikora, urusaku rwinshi rwo guhinduranya urusaku hamwe no kwivanga kwa radiyo (RFI) bihinduka iterabwoba rikomeye. Imikorere-yo hejuru Imiyoboro ya aluminiyumu ikora neza ikemura ibyo bibazo kurwego rwimiterere, uruzitiro, na busbar.

Ugereranije na aluminiyumu itavuwe neza cyangwa ibisubizo bikozwe mu muringa biremereye, imirongo ya aluminiyumu itwikiriye neza itanga uburyo bukomeye bwo gukingira amashanyarazi ya Electromagnetic Interference (EMI), inzitizi zo kwimura intera hagati, kwihanganira ubushyuhe bwinshi, hamwe no kuzigama ibiro byinshi kuri super super mudasobwa ya AI.

Ubucucike Bwinshi Kubara Ubwubatsi & Igipimo cya Frequency

Ibikoresho bigezweho bya AI bigizwe na ultra-dense ya GPU ikora hamwe ningendo zigihe gito zirenga ibihumbi amperes ( 1000 A + ) kuri voltage nkeya ( <1 V ):

Urusaku rwinshi C-Igipimo cyo Gutanga Urusaku: Guhindura byihuse-by-umutwaro (PoL) bihindura uburyo bwo guhinduranya ibintu byinshi hamwe n urusaku rwa electronique (10 MHz - 10 GHz).

Aperture & Seam Slot Leakage: Mugihe gikora hejuru ya 40 GHz (urugero, PCIe Gen 6/7 na 800G / 1.6T optique ya transcevers), aperture ntoya nka mm 1.5 ihinduka antenne yibibanza, bigatera ibiganiro byinshi no kwangirika kwipaki.

Kugereranya: Bare ya Aluminiyumu na Bande ya Aluminiyumu

EMI Ikingira Ibisubizo

Matrix ikurikira igereranya ibikoresho gakondo byo gukingira hamwe na aluminiyumu yometseho imiyoboro ya mudasobwa ya AI:

Ibyingenzi Byumwuga Mubyifuzo bya AI Supercomputer Porogaramu

Ibibazo

Ikibazo1: Kuki imirongo ya aluminiyumu itwikiriye iruta aluminiyumu isanzwe ya anodize ya EMI ikingira?

Igisubizo: Aluminiyumu ya Anodize ikora urwego rukingira ( Al ₂ O ₃) ruhagarika gukomeza amashanyarazi no gutesha agaciro imikorere ya EMI ikingira. Imiyoboro ya aluminiyumu isize isimbuza iyi okiside hamwe nu mashanyarazi, irwanya imbaraga nke, bigatuma ihora ikomeza kandi ikanashyira ingufu za EMI ( > 85 dB ).

Q2: Nigute impuzu ziyobora zifata amagare yubushyuhe imbere mumashanyarazi akomeye ya AI?

Igisubizo: Imyenda ikora neza cyane ikoresha polymer zihuza (nka polyimide cyangwa resin ya acrylic) yakozwe kugirango ihuze na coefficent yo kwagura ubushyuhe (CTE) ya substrate ya aluminium, irinda kumeneka cyangwa gusibanganya mugihe cy'ubushyuhe bugera kuri 150 ° C..

Q3: Ese imirongo ya aluminiyumu itwikiriye irashobora gukoreshwa muri mudasobwa zidasanzwe zikonje?

Igisubizo: Yego. Ipfunyika ya inert ikora nkinzitizi yumubiri nu miti irwanya amazi ya dielectric, imvange y’amazi-glycol, hamwe n’ubushuhe bwo mu kirere, birinda kwangirika kwa galvanike no kurinda imikorere y’ubutaka mu kwibiza cyangwa ahantu hakonje-bikonje.

Q4: Uburemere bwa aluminiyumu itwikiriye igereranya ite no gukingira umuringa gakondo?

Igisubizo: Aluminium ifite ubucucike bwa 2.7 g / cm³ , ugereranije n'umuringa wa 8,96 g / cm . Gukoresha aluminiyumu itwikiriye itanga umusaruro hafi 65% - 70%  kugabanuka kwinshi mugihe utanga amashanyarazi agereranya gukingira.

Q5: Ni ubuhe buryo busanzwe bwo guhangana nubuso bwagezweho niyi mirongo isize?

Igisubizo: Imiyoboro ya aluminiyumu itunganijwe neza igera kuri ultra-hasi yubutaka bwo guhangana na munsi ya 0.003 - 0.005  Ω  cm²  munsi yumuvuduko muke wo guhuza, bigatuma biba byiza kubutaka bwihuse hamwe na gasike ya EMI-igabanuka.

Umwanzuro

Imiyoboro ya aluminiyumu yubatswe yerekana ibintu byingenzi bizamura ibikoresho bya AI super superomputer, bitanga umurongo mugari wa EMI ukingira, kutitwara neza, hamwe no kuzigama cyane.

Kugirango uhindure ibikoresho byo gukora mudasobwa zidasanzwe:

Kugaragaza Micro-Gravure Conductive Polymer / Coatings: Mandate 3μm - 8μm silver- cyangwa nikel-graphite yometseho aluminiyumu ya seriveri ya chassis hamwe na bisi ya busbar.

Saba Kugenzura Kurwanya Kurwanya Kurwanya (<0.005  Ω ): Menya neza ko abatanga isoko bagerageza guhangana nimbaraga zoroheje (<0.5MPa) ukurikije ASTM D257 / IEEE-299.

Igenzura rya Edge Burr Igenzura (≤ 3μm): Shimangira ubworoherane bwogosha bwogosha kugirango wirinde imiyoboro migufi mu ndege zuzuye cyane hamwe nimbibi zikonje zikonje.