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์ธ์‚ฌ์ดํŠธ

๊ธฐ์ˆ ๊ณผ ์‚ฐ์—…์˜ ๋ณ€ํ™”๋ฅผ ๊ธฐ์—…์˜ ์„ ํƒ์ด๋ผ๋Š” ๊ด€์ ์—์„œ ์ฝ๊ณ , ๊ธฐ์ˆ ๊ธฐ์—…์ด ๋ฌด์—‡์„ ํ™•์ธํ•ด์•ผ ํ• ์ง€ ํ•จ๊ป˜ ์‚ดํ•๋‹ˆ๋‹ค.

[๋ฐ˜๋„์ฒด] HBM ๋ƒ‰๊ฐ ์„ค๊ณ„๋Š” ์—ด์ด ๋น ์ ธ๋‚˜๊ฐ€๋Š” ๊ฒฝ๋กœ๋ถ€ํ„ฐ ๋‹ฌ๋ผ์ง‘๋‹ˆ๋‹ค

Micron๊ณผ ND HiยทEtron์˜ HBM ๋ƒ‰๊ฐ ๊ด€๋ จ ๊ณต๊ฐœํŠนํ—ˆ๋ฅผ ๋น„๊ตํ•˜์—ฌ ๊ธˆ์† ์ ‘์ , ์ธก๋ฉด ์•ก์ฒด๋ƒ‰๊ฐ, ๋‚ด๋ถ€ ๋ƒ‰๊ฐ ํŠธ๋ Œ์น˜์˜ ์ฒญ๊ตฌํ•ญ ๊ตฌ์„ฑ ๋ฐ ์‹คํ—˜ยท์„ค๊ณ„๋ณ€๊ฒฝ ์ฆ๊ฑฐ๋ฅผ ๋ถ„์„ํ•ฉ๋‹ˆ๋‹ค.

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.il-reading .il-summary{background:#EAF1F7!important;background-color:#EAF1F7!important;background-image:linear-gradient(#EAF1F7,#EAF1F7)!important}ํ•ต์‹ฌ ์š”์•ฝHBM์˜ ์—ด๊ด€๋ฆฌ ํŠนํ—ˆ๋Š” ๋ƒ‰๊ฐ์ˆ˜์˜ ์œ ๋ฌด๋ณด๋‹ค ์—ด์ด ์ง€๋‚˜๊ฐ€๋Š” ๊ธˆ์† ์ ‘์ , ์นฉ ์ธก๋ฉด, ์ ์ธต ๋‹ค์ด ๋‚ด๋ถ€ ์œ ๋กœ์˜ ๊ตฌ์กฐ๋กœ ๊ตฌ๋ณ„๋ฉ๋‹ˆ๋‹ค. Micron๊ณผ ND HiยทEtron์˜ ๊ณต๊ฐœ์ฒญ๊ตฌํ•ญ์„ ๋Œ€์กฐํ•˜๋ฉด ๊ฐœ๋ฐœํŒ€์ด ๊ฒ€์ฆํ•  ์„ฑ๋Šฅ๊ณผ ํŠนํ—ˆ๋ถ„์„์— ํ•„์š”ํ•œ ์ฆ๊ฑฐ๊ฐ€ ๊ฐ๊ฐ ๋‹ฌ๋ผ์ง‘๋‹ˆ๋‹ค.HBM(๊ณ ๋Œ€์—ญํญ ๋ฉ”๋ชจ๋ฆฌ)์€ ์—ฌ๋Ÿฌ ๋ฉ”๋ชจ๋ฆฌ ๋‹ค์ด๋ฅผ ์ˆ˜์ง์œผ๋กœ ์—ฐ๊ฒฐํ•ด ๋Œ€์—ญํญ์„ ๋†’์ž…๋‹ˆ๋‹ค. ์ ์ธต ๋ฐ€๋„์™€ ์ „๋ ฅ๋ฐ€๋„๊ฐ€ ๋†’์•„์ง€๋ฉด ๋ฐœ์—ด์€ ์นฉ์˜ ํ‰๊ท ์˜จ๋„๋งŒ์ด ์•„๋‹ˆ๋ผ ์ ‘ํ•ฉ๋ฉด, ๋‹ค์ด ์ค‘์•™๋ถ€, ์ธ์ ‘ ํ”„๋กœ์„ธ์„œ์™€ ๋งž๋‹ฟ์€ ํŒจํ‚ค์ง€ ์˜์—ญ์˜ ๊ตญ๋ถ€ ์˜จ๋„๋ถ„ํฌ๋กœ ๋‚˜ํƒ€๋‚ฉ๋‹ˆ๋‹ค. ์™ธ๋ถ€ ๋ƒ‰๊ฐํŒ์„ ๊ฐ•ํ™”ํ•˜๋”๋ผ๋„ ์—ด์ด ๊ทธ๊ณณ๊นŒ์ง€ ๋„๋‹ฌํ•˜์ง€ ๋ชปํ•˜๋ฉด ๋‚ด๋ถ€์˜ ์˜จ๋„ ๋ณ‘๋ชฉ์€ ๋‚จ์Šต๋‹ˆ๋‹ค.
์ด ๊ธ€์—์„œ๋Š” ๊ธˆ์† ์ ‘์ ์œผ๋กœ ์—ด์„ ์ด๋™์‹œํ‚ค๋Š” ๊ตฌ์กฐ, ๋ฉ”๋ชจ๋ฆฌ์˜ ์ธก๋ฉด์œผ๋กœ ๋นผ๋‚ด๋Š” ๊ตฌ์กฐ, ๋‹ค์ด ๋‚ด๋ถ€์— ์œ ์ฒด ํ†ต๋กœ๋ฅผ ๋งŒ๋“œ๋Š” ๊ตฌ์กฐ๋ฅผ ์„œ๋กœ ๋‹ค๋ฅธ ๊ธฐ์ˆ ์„ ํƒ์œผ๋กœ ๊ฒ€ํ† ํ•ฉ๋‹ˆ๋‹ค. ๊ณต๊ฐœ๋œ ํŠนํ—ˆ์ฒญ๊ตฌํ•ญ๊ณผ ์—ด๊ด€๋ฆฌ ์—ฐ๊ตฌ๋ฅผ ์ฝ์–ด ์‹ค์ œ ๊ฐœ๋ฐœ์—์„œ ๋ฌด์—‡์„ ํ™•์ธํ•ด์•ผ ํ•˜๋Š”์ง€ ์ œ์‹œํ•ฉ๋‹ˆ๋‹ค.
1. ๊ฐ™์€ ๋ƒ‰๊ฐ ์„ฑ๋Šฅ์ด๋ผ๋„ ์—ด์ด ์ง€๋‚˜๊ฐ€๋Š” ๊ฒฝ๋กœ๋Š” ๋‹ค๋ฆ…๋‹ˆ๋‹ค
์—ด๊ด€๋ฆฌ์˜ ์ถœ๋ฐœ์ ์€ ์—ด๋ฐœ์ƒ ์œ„์น˜์™€ ๋ฐฐ์ถœ ๊ฒฝ๋กœ์˜ ์—ด์ €ํ•ญ์„ ๊ตฌ๋ถ„ํ•˜๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค. ๋‹จ์ˆœ ์ •์ƒ์ƒํƒœ ๋ชจ๋ธ์—์„œ๋Š” ์˜จ๋„์ƒ์Šน ฮ”T โ‰ˆ ๋ฐœ์—ด๋Ÿ‰ Q ร— ์—ด์ €ํ•ญ Rth๋กœ ํ‘œํ˜„ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ์ ์ธต HBM์˜ ์‹ค์ œ ์—ด์ „๋‹ฌ์€ ์‹ค๋ฆฌ์ฝ˜, ๊ตฌ๋ฆฌ ๋ฐฐ์„ , ์ ‘ํ•ฉ ์ ˆ์—ฐ๋ง‰, ์–ธ๋”ํ•„, ์—ด๊ณ„๋ฉด์žฌ(TIM), ๋ƒ‰๊ฐ๋ถ€ ์‚ฌ์ด์—์„œ ์ง๋ ฌยท๋ณ‘๋ ฌ ๊ฒฝ๋กœ๊ฐ€ ๊ฒน์นฉ๋‹ˆ๋‹ค. ์ด ์‹ ํ•˜๋‚˜๋กœ ๊ตญ๋ถ€ ์ตœ๊ณ ์˜จ๋„๋‚˜ ์œ ๋Ÿ‰์— ๋”ฐ๋ฅธ ๋ƒ‰๊ฐํšจ๊ณผ๋ฅผ ์‚ฐ์ •ํ•  ์ˆ˜๋Š” ์—†์Šต๋‹ˆ๋‹ค.
2025๋…„ HBM ํ•˜์ด๋ธŒ๋ฆฌ๋“œ ๋ณธ๋”ฉ ์—ด๋ฌธ์ œ ์—ฐ๊ตฌ์™€ 2026๋…„ ์ฒจ๋‹จ HBM ํŒจํ‚ค์ง€ ์—ด๊ด€๋ฆฌยท์‹ ๋ขฐ์„ฑ ์ข…์„ค์€ ์ ‘ํ•ฉ๋ฉด์˜ ๊ณต๊ทน, ์žฌ๋ฃŒ ์—ดํŒฝ์ฐฝ๊ณ„์ˆ˜(CTE) ๋ถˆ์ผ์น˜, TIM์˜ ์ ๋„ยทํƒ„์„ฑยท์—ด์ „๋„ ํŠน์„ฑ์ด ํ•จ๊ป˜ ์ž‘๋™ํ•œ๋‹ค๋Š” ์ ์„ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค. ์—ด์ „๋„๋„๊ฐ€ ๋†’์€ ์žฌ๋ฃŒ๋กœ ๊ต์ฒดํ•˜๋Š” ๊ฒฐ์ •๋„ ๊ณ„๋ฉด ๋ฐ€์ฐฉยท์‘๋ ฅยท๊ณต์ •์ˆ˜์œจ์„ ๊ฐ™์ด ํ™•์ธํ•ด์•ผ ํ•˜๋Š” ์ด์œ ์ž…๋‹ˆ๋‹ค.
์ด๋•Œ ํŠนํ—ˆ๋ฅผ ๊ฒ€์ƒ‰ํ•˜๋ฉฐ โ€˜HBM ์•ก์ฒด๋ƒ‰๊ฐโ€™์ด๋ผ๋Š” ์ƒ์œ„ ํ‚ค์›Œ๋“œ๋งŒ ๋ชจ์œผ๋ฉด ๊ธฐ์ˆ ์˜ ์ฐจ์ด๊ฐ€ ํ๋ ค์ง‘๋‹ˆ๋‹ค. ์‹ค์ œ ์ฒญ๊ตฌํ•ญ์€ ๋ƒ‰๊ฐ์žฅ์น˜๋ผ๋Š” ๋ช…์นญ๋ณด๋‹ค ์—ด๊ฒฝ๋กœ๋ฅผ ํ˜•์„ฑํ•˜๋Š” ์ ‘์ ์˜ ์—ฐ๊ฒฐ๊ด€๊ณ„, ๋‹ค์ด์˜ ๋ฐฐ์น˜์™€ ๋ƒ‰๊ฐ๋ฉด, ์œ ๋กœ๊ฐ€ ๊ด€ํ†ตํ•˜๋Š” ๊ตฌ์กฐ๋ฅผ ๊ฐ๊ฐ ๋‹ค๋ฅด๊ฒŒ ์š”๊ตฌํ•ฉ๋‹ˆ๋‹ค.
2. ์ ‘ํ•ฉ๋ฉด์˜ ๊ธˆ์†์„ ์—ด๊ฒฝ๋กœ๋กœ ํ™œ์šฉํ•˜๋Š” Micron์˜ ์ ‘๊ทผ
์ƒ๋ถ€ ๋‹ค์ดํ•˜๋ถ€ ๋‹ค์ดTSV ์—ฐ๊ฒฐ ์ ‘์ ๋น„์ง์ ‘ ์—ฐ๊ฒฐ๋‹ค์ด ๊ฐ„ ์ ‘ํ•ฉ ๊ณ„๋ฉดCu ๋ณธ๋”ฉ ์ ‘์ ๊ตฌ์กฐ ๊ฐœ๋…๋„ ยท Micron US20260040917A1 ยท Fig. 3Aโ€“3B ์›๋„๋ฉดยท์ฒญ๊ตฌํ•ญ๊ตฌ์„ฑ ํ•ด์„ค์šฉ ์žฌ๊ตฌ์„ฑ ๋„์‹์ž…๋‹ˆ๋‹ค. ์›๊ณต๋ณด ๋„๋ฉด์€ ๋งํฌ์—์„œ ํ™•์ธํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๋…๋ฆฝํ•ญ 1์˜ TSV ์ง์ ‘ ์—ฐ๊ฒฐ/๋น„์ง์ ‘ ์—ฐ๊ฒฐ๊ณผ ์ƒ๋Œ€ ์ ‘์  ๋ณธ๋”ฉ์˜ ๋Œ€์‘์ด ํ•ต์‹ฌ์ž…๋‹ˆ๋‹ค. ํŠนํ—ˆ๊ณต๋ณด ์›๋„๋ฉดยท์ฒญ๊ตฌํ•ญ ๋ณด๊ธฐ
Micron์˜ ๋ฏธ๊ตญ ๊ณต๊ฐœ์ถœ์› US20260040917A1(2026๋…„ 2์›” 5์ผ ๊ณต๊ฐœ)์€ Thermal Structures for Hybrid Bonding์— ๊ด€ํ•œ ๊ฒƒ์ž…๋‹ˆ๋‹ค. ๊ณต๊ฐœ ๋…๋ฆฝํ•ญ 1์€ ๋‹จ์ˆœํ•œ ๋ฐฉ์—ด ํŒจ๋“œ๊ฐ€ ์•„๋‹ˆ๋ผ ๋‘ ๋ฐ˜๋„์ฒด ๋””๋ฐ”์ด์Šค์™€ ๊ทธ ์ ‘์ ๋“ค์˜ ํŠน์ • ์ „๊ธฐ์  ์—ฐ๊ฒฐ๊ด€๊ณ„ ๋ฐ ๋ณธ๋”ฉ ์กฐํ•ฉ์„ ์ฒญ๊ตฌํ•ฉ๋‹ˆ๋‹ค.
์ฒซ ๋ฒˆ์งธ ๋””๋ฐ”์ด์Šค์˜ ๊ธˆ์† ๋„์ฒด๋Š” ๊ธฐํŒ ๊ด€ํ†ต ๋น„์•„(TSV)์— ์ง์ ‘ ์—ฐ๊ฒฐ๋˜๋Š” ๊ทธ๋ฃน๊ณผ ์ง์ ‘ ์—ฐ๊ฒฐ๋˜์ง€ ์•Š๋Š” ๊ทธ๋ฃน์œผ๋กœ ๋‚˜๋‰ฉ๋‹ˆ๋‹ค. ๋‘ ๊ทธ๋ฃน์—๋Š” ๋Œ€์‘ํ•˜๋Š” ๋น„์•„์™€ ํ‘œ๋ฉด ์ ‘์ ์ด ์žˆ๊ณ , ๋‘ ๋ฒˆ์งธ ๋””๋ฐ”์ด์Šค์—๋Š” ๊ธฐํŒ ๊ด€ํ†ต ๋น„์•„์— ์—ฐ๊ฒฐ๋˜๋Š” ์ ‘์ ๊ณผ ๊ทธ ๋น„์•„๋กœ๋ถ€ํ„ฐ ์ „๊ธฐ์ ์œผ๋กœ ์ ˆ์—ฐ๋œ ์ ‘์ ์ด ์žˆ์Šต๋‹ˆ๋‹ค. ์„œ๋กœ ๋Œ€์‘ํ•˜๋Š” ์ ‘์  ๊ทธ๋ฃน์ด ์ ‘ํ•ฉ๋ฉ๋‹ˆ๋‹ค. ๋ช…์„ธ์„œ๋Š” ์‹ ํ˜ธยท์ „๋ ฅ ์ „๋‹ฌ์— ์ง์ ‘ ์ฐธ์—ฌํ•˜์ง€ ์•Š๋Š” ์ ‘์ ๊ณผ ๊ธˆ์† ๊ฒฝ๋กœ๋ฅผ ์—ด ๋ถ„์‚ฐ์— ํ™œ์šฉํ•˜๋Š” ์‹ค์‹œํ˜•ํƒœ๋ฅผ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค.
๋”ฐ๋ผ์„œ ์™„์„ฑ ํŒจํ‚ค์ง€์— ๋”๋ฏธ ๊ตฌ๋ฆฌ ํŒจ๋“œ๊ฐ€ ์กด์žฌํ•œ๋‹ค๋Š” ์‚ฌ์‹ค๋งŒ์œผ๋กœ ์œ„ ๋…๋ฆฝํ•ญ์˜ ๋ชจ๋“  ๊ตฌ์„ฑ์ด ์ถฉ์กฑ๋˜๋Š” ๊ฒƒ์€ ์•„๋‹™๋‹ˆ๋‹ค. ์–ด๋А ์ ‘์ ์ด ์–ด๋А ๋„์ฒดยท๋น„์•„ยทTSV์™€ ์ง์ ‘ ๊ฒฐํ•ฉ๋˜๋Š”์ง€, ์ƒ๋Œ€ ๋‹ค์ด์˜ ์–ด๋–ค ์ ‘์ ๊ณผ ๋ณธ๋”ฉ๋˜๋Š”์ง€๋ฅผ ํ•จ๊ป˜ ์ฝ์–ด์•ผ ํ•ฉ๋‹ˆ๋‹ค. ํŠนํžˆ ์ฒซ ๋ฒˆ์งธ ๋””๋ฐ”์ด์Šค์˜ โ€˜TSV์— ์ง์ ‘ ์—ฐ๊ฒฐ๋˜์ง€ ์•Š์Œโ€™๊ณผ ๋‘ ๋ฒˆ์งธ ๋””๋ฐ”์ด์Šค์˜ โ€˜TSV์—์„œ ์ „๊ธฐ์ ์œผ๋กœ ์ ˆ์—ฐ๋จโ€™์€ ์„œ๋กœ ๋‹ค๋ฅธ ๋ฌธ์–ธ์ž…๋‹ˆ๋‹ค. ์ด๋ฅผ ์ผ๋ฅ ์ ์œผ๋กœ โ€˜์ „๋ถ€ ์ „๊ธฐ์  ๋ถ€์œ (floating)โ€™๋กœ ๋ฐ”๊พธ์–ด ํ•ด์„ํ•ด์„œ๋Š” ์•ˆ ๋ฉ๋‹ˆ๋‹ค.
๊ฐœ๋ฐœํŒ€์—๋Š” ์ ‘ํ•ฉ ํŒจ๋“œ์˜ ์ขŒํ‘œ๋ณด๋‹ค ํŒจ๋“œโ€“๋น„์•„โ€“๋ฐฐ์„ โ€“TSV ์—ฐ๊ฒฐํ‘œ๊ฐ€ ๋จผ์ € ํ•„์š”ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์ ‘์ ์˜ ์ˆ˜ยท๋ฉด์ ์„ ๋Š˜๋ฆด ๋•Œ๋Š” ์—ด์ „๋‹ฌ๊ฒฝ๋กœ๋ฟ ์•„๋‹ˆ๋ผ ๊ธˆ์† ๋ฐ€๋„, ์ „๊ธฐ์  ๊ฐ„์„ญ, ์ ‘ํ•ฉ๋ถ€ ๊ณต๊ทน ๋ฐ ์—ด์‚ฌ์ดํด ๋’ค์˜ ๊ณ„๋ฉด ์‹ ๋ขฐ์„ฑ์„ ๋™์‹œ์— ํ‰๊ฐ€ํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค. ๊ด€๋ จ ์„ค๋ช…๊ณผ ์ ‘์  ๋‹จ๋ฉด์€ ๊ณต๋ณด ์›๋„๋ฉด ๋ฐ ์ฒญ๊ตฌํ•ญ์—์„œ ํ™•์ธํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
3. ๋‹ค์ด์˜ ๋ฐ˜๋Œ€์ชฝ ์ธก๋ฉด์œผ๋กœ ์—ด์„ ๋นผ๋Š” ND HiยทEtron์˜ ์ ‘๊ทผ
๊ธฐํŒยท์ธํ„ฐํฌ์ €ํ”„๋กœ์„ธ์„œ์ œ1 ์ธก๋ฒฝ: edge pads์ œ2 ์ธก๋ฒฝยท์ƒ๋ถ€๋ฉด: ์—ด ๋ฐฉ์ถœ๊ตฌ์กฐ ๊ฐœ๋…๋„ ยท ND HiยทEtron US20260068186A1 ยท Fig. 5Aโ€“5D ์›๋„๋ฉดยท์ฒญ๊ตฌํ•ญ์—ฃ์ง€ ํŒจ๋“œ๊ฐ€ ํ˜•์„ฑ๋œ ์ œ1 ์ธก๋ฒฝ๊ณผ ๋ƒ‰๊ฐ์— ํ™œ์šฉ๋˜๋Š” ๋ฐ˜๋Œ€ํŽธ ์ œ2 ์ธก๋ฒฝ, ์ธ์ ‘ ํ”„๋กœ์„ธ์„œ ์ƒ๋ถ€๋ฉด์„ ๊ตฌ๋ถ„ํ•˜๊ธฐ ์œ„ํ•œ ๊ฐœ๋…๋„์ž…๋‹ˆ๋‹ค. ํŠนํ—ˆ๊ณต๋ณด ์›๋„๋ฉดยท์ฒญ๊ตฌํ•ญ ๋ณด๊ธฐ
ND Hi Technologies Lab๊ณผ Etron์˜ US20260068186A1(2026๋…„ 3์›” 5์ผ ๊ณต๊ฐœ)์€ ๋ฉ”๋ชจ๋ฆฌ ์ ‘์†๊ณผ ์•ก์ฒด๋ƒ‰๊ฐ์˜ ์œ„์น˜๊ด€๊ณ„๋ฅผ ํ•˜๋‚˜์˜

๋ฐ˜๋„์ฒด,HBM,์ฒจ๋‹จํŒจํ‚ค์ง•,์—ด๊ด€๋ฆฌ,ํ•˜์ด๋ธŒ๋ฆฌ๋“œ๋ณธ๋”ฉ,์•ก์ฒด๋ƒ‰๊ฐ,๊ฒฝ์ŸํŠนํ—ˆ,IP-R&D