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			<guid><![CDATA[https://4under1.com/chamber-multi-dut-loading/]]></guid>
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			<title>#18 여러 개의 DUT를 적재하면 Temperature Distribution은 어떻게 변할까?</title>
			<pubDate><![CDATA[Wed, 23 Sep 2026 07:33:08 +0000]]></pubDate>
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			<title>#17 DUT 적재 방향과 간격은 왜 중요할까?</title>
			<pubDate><![CDATA[Tue, 22 Sep 2026 15:07:45 +0000]]></pubDate>
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			<title>#20 Air Short Circuit과 Dead Zone은 왜 발생할까?</title>
			<pubDate><![CDATA[Thu, 24 Sep 2026 21:21:59 +0000]]></pubDate>
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			<guid><![CDATA[https://4under1.com/chamber-air-flow/]]></guid>
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			<title>#19 Air Flow는 왜 챔버 성능을 결정할까?</title>
			<pubDate><![CDATA[Thu, 24 Sep 2026 00:35:50 +0000]]></pubDate>
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			<guid><![CDATA[https://4under1.com/chamber-ramp-validation/]]></guid>
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			<title>#11 Ramp Rate는 어떻게 검증해야 정확할까?</title>
			<pubDate><![CDATA[Wed, 16 Sep 2026 13:58:21 +0000]]></pubDate>
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			<guid><![CDATA[https://4under1.com/chamber-ramp-troubleshooting/]]></guid>
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			<title>#22 챔버 Ramp가 갑자기 느려졌다면 무엇부터 확인해야 할까?</title>
			<pubDate><![CDATA[Sun, 27 Sep 2026 13:21:23 +0000]]></pubDate>
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			<guid><![CDATA[https://4under1.com/chamber-baffle-plate/]]></guid>
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			<title>#21 Baffle Plate는 왜 설치할까?</title>
			<pubDate><![CDATA[Sat, 26 Sep 2026 13:38:00 +0000]]></pubDate>
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			<guid><![CDATA[https://4under1.com/chamber-dry-run/]]></guid>
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			<title>#07 Dry-Run은 왜 반드시 해야 할까?</title>
			<pubDate><![CDATA[Wed, 16 Sep 2026 13:43:05 +0000]]></pubDate>
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			<guid><![CDATA[https://4under1.com/disclaimer/]]></guid>
			<link><![CDATA[https://4under1.com/disclaimer/]]></link>
			<title>면책조항</title>
			<pubDate><![CDATA[Mon, 21 Sep 2026 22:00:52 +0000]]></pubDate>
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			<guid><![CDATA[https://4under1.com/chamber-pre-run/]]></guid>
			<link><![CDATA[https://4under1.com/chamber-pre-run/]]></link>
			<title>#10 Pre-Run은 언제까지 수행해야 할까?</title>
			<pubDate><![CDATA[Sun, 20 Sep 2026 01:32:44 +0000]]></pubDate>
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			<guid><![CDATA[https://4under1.com/chamber-temperature-recovery/]]></guid>
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			<title>#13 Temperature Recovery는 얼마나 빨라야 정상일까?</title>
			<pubDate><![CDATA[Thu, 17 Sep 2026 20:05:56 +0000]]></pubDate>
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			<guid><![CDATA[https://4under1.com/chamber-temperature-overshoot/]]></guid>
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			<title>#14 Overshoot는 왜 생기고 어떻게 줄일 수 있을까?</title>
			<pubDate><![CDATA[Sat, 19 Sep 2026 09:50:37 +0000]]></pubDate>
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			<title>이용약관</title>
			<pubDate><![CDATA[Mon, 21 Sep 2026 22:00:20 +0000]]></pubDate>
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			<guid><![CDATA[https://4under1.com/privacy-policy/]]></guid>
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			<title>개인정보 처리방침</title>
			<pubDate><![CDATA[Mon, 21 Sep 2026 21:59:05 +0000]]></pubDate>
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					<item>
			<guid><![CDATA[https://4under1.com/chamber-temperature-stability/]]></guid>
			<link><![CDATA[https://4under1.com/chamber-temperature-stability/]]></link>
			<title>#12 Temperature Stability는 얼마나 안정적이어야 할까?</title>
			<pubDate><![CDATA[Thu, 17 Sep 2026 12:31:04 +0000]]></pubDate>
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					<item>
			<guid><![CDATA[https://4under1.com/chamber-temperature-humidity/]]></guid>
			<link><![CDATA[https://4under1.com/chamber-temperature-humidity/]]></link>
			<title>#05 온습도 챔버는 어떻게 온도와 습도를 동시에 제어할까?</title>
			<pubDate><![CDATA[Wed, 16 Sep 2026 13:32:52 +0000]]></pubDate>
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			<guid><![CDATA[https://4under1.com/contact/]]></guid>
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			<title>문의하기</title>
			<pubDate><![CDATA[Mon, 21 Sep 2026 21:56:07 +0000]]></pubDate>
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			<guid><![CDATA[https://4under1.com/about/]]></guid>
			<link><![CDATA[https://4under1.com/about/]]></link>
			<title>블로그 소개</title>
			<pubDate><![CDATA[Mon, 21 Sep 2026 21:55:35 +0000]]></pubDate>
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					<item>
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			<title>#16 DUT Loading이 챔버 성능을 바꾸는 이유</title>
			<pubDate><![CDATA[Mon, 21 Sep 2026 11:18:22 +0000]]></pubDate>
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			<title>#09 9-Point Uniformity는 어떻게 검증할까?</title>
			<pubDate><![CDATA[Wed, 16 Sep 2026 13:53:06 +0000]]></pubDate>
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			<guid><![CDATA[https://4under1.com/chamber-temperature-mapping/]]></guid>
			<link><![CDATA[https://4under1.com/chamber-temperature-mapping/]]></link>
			<title>#08 Temperature Mapping은 왜 수행해야 할까?</title>
			<pubDate><![CDATA[Wed, 16 Sep 2026 13:45:50 +0000]]></pubDate>
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					<item>
			<guid><![CDATA[https://4under1.com/chamber-fat-vs-sat/]]></guid>
			<link><![CDATA[https://4under1.com/chamber-fat-vs-sat/]]></link>
			<title>#06 FAT와 SAT는 무엇이 다를까?</title>
			<pubDate><![CDATA[Wed, 16 Sep 2026 13:39:02 +0000]]></pubDate>
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					<item>
			<guid><![CDATA[https://4under1.com/chamber-thermal-shock/]]></guid>
			<link><![CDATA[https://4under1.com/chamber-thermal-shock/]]></link>
			<title>#04 Thermal Shock Chamber는 왜 두 개의 Zone을 사용할까?</title>
			<pubDate><![CDATA[Wed, 16 Sep 2026 13:18:07 +0000]]></pubDate>
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					<item>
			<guid><![CDATA[https://4under1.com/chamber-thermal-cycle/]]></guid>
			<link><![CDATA[https://4under1.com/chamber-thermal-cycle/]]></link>
			<title>#03 Thermal Cycle Chamber는 어떻게 반복 온도시험을 수행할까?</title>
			<pubDate><![CDATA[Wed, 16 Sep 2026 13:13:00 +0000]]></pubDate>
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					<item>
			<guid><![CDATA[https://4under1.com/chamber-temperature-chamber/]]></guid>
			<link><![CDATA[https://4under1.com/chamber-temperature-chamber/]]></link>
			<title>#02 Temperature Chamber는 어떻게 목표 온도를 정확하게 제어할까?</title>
			<pubDate><![CDATA[Wed, 16 Sep 2026 12:37:59 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://4under1.com/chamber-ramp-stabilization-dwell/]]></guid>
			<link><![CDATA[https://4under1.com/chamber-ramp-stabilization-dwell/]]></link>
			<title>#01 왜 같은 85℃ 시험인데 어떤 챔버는 20분, 어떤 챔버는 40분이 걸릴까?</title>
			<pubDate><![CDATA[Wed, 16 Sep 2026 11:29:27 +0000]]></pubDate>
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					<item>
			<guid><![CDATA[https://4under1.com/chamber-effective-working-space/]]></guid>
			<link><![CDATA[https://4under1.com/chamber-effective-working-space/]]></link>
			<title>#15 Effective Working Space는 어떻게 정의할까?</title>
			<pubDate><![CDATA[Mon, 21 Sep 2026 11:13:26 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://4under1.com/ground-design-guide/]]></guid>
			<link><![CDATA[https://4under1.com/ground-design-guide/]]></link>
			<title>Part 8. Display Chamber Ground 설계 방법</title>
			<pubDate><![CDATA[Mon, 14 Sep 2026 13:25:20 +0000]]></pubDate>
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			<title>Part 7. Display Chamber Ground Trouble Shooting Guide</title>
			<pubDate><![CDATA[Mon, 14 Sep 2026 13:24:43 +0000]]></pubDate>
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					<item>
			<guid><![CDATA[https://4under1.com/ground-esd-source/]]></guid>
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			<title>Part 6. Display Chamber에서 실제 ESD는 어디서 발생하는가?</title>
			<pubDate><![CDATA[Mon, 14 Sep 2026 13:24:18 +0000]]></pubDate>
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			<title>Part 5. ESD와 EOS는 어떻게 다른가?</title>
			<pubDate><![CDATA[Mon, 14 Sep 2026 13:23:54 +0000]]></pubDate>
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					<item>
			<guid><![CDATA[https://4under1.com/ground-dut-jig/]]></guid>
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			<title>Part 4. DUT Jig는 왜 반드시 Ground 해야 하는가?</title>
			<pubDate><![CDATA[Mon, 14 Sep 2026 13:23:30 +0000]]></pubDate>
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					<item>
			<guid><![CDATA[https://4under1.com/ground-loop/]]></guid>
			<link><![CDATA[https://4under1.com/ground-loop/]]></link>
			<title>Part 3. Ground Loop는 어떻게 발생하는가?</title>
			<pubDate><![CDATA[Mon, 14 Sep 2026 13:23:15 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://4under1.com/ground-frame-vs-pe-ground/]]></guid>
			<link><![CDATA[https://4under1.com/ground-frame-vs-pe-ground/]]></link>
			<title>Part 2. Frame Ground와 PE Ground는 왜 분리해서 이해해야 할까?</title>
			<pubDate><![CDATA[Mon, 14 Sep 2026 13:22:43 +0000]]></pubDate>
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			<guid><![CDATA[https://4under1.com/ground-pe-ground/]]></guid>
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			<title>Part 1. 챔버에서 PE(Protective Earth) 접지가 중요한 이유</title>
			<pubDate><![CDATA[Mon, 14 Sep 2026 13:22:41 +0000]]></pubDate>
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