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鎮ㄥソ锛屾杩庝締(l谩i)鍒扮董搴�(k霉)闆诲瓙甯傚牬(ch菐ng)缍�(w菐ng) 鐧婚寗 | 鍏嶈不(f猫i)娉ㄥ唺(c猫)

LDMOS
闁辫畝锛�16589鏅�(sh铆)闁擄細2011-06-10 15:42:50

銆�銆�LDMOS锛� Laterally Diffused Metal Oxide Semiconductor;姗悜鎿�(ku貌)鏁ｉ噾灞哀鍖栫墿鍗婂皫(d菐o)楂�锛夐噰鐢ㄩ洐鎿�(ku貌)鏁ｆ妧琛�(sh霉)锛屽湪鍚屼竴绐楀彛鐩哥辜閫�(j矛n)琛岀〖纾峰叐娆℃摯(ku貌)鏁�锛岀敱鍏╂闆滆唱(zh矛)鎿�(ku貌)鏁ｆ┇鍚戠祼(ji茅)娣变箣宸彲绮剧⒑鍦版焙瀹氭簼閬撻暦(zh菐ng)搴�銆傝渹绐╅�氫俊甯傚牬(ch菐ng)鐨勪笉鏂峰闀�(zh菐ng)淇濊瓑浜哃DMOS鏅堕珨绠＄殑鎳�(y墨ng)鐢�锛屼篃浣垮緱LDMOS鐨勬妧琛�(sh霉)涓嶆柗鎴愮啛锛屾垚鏈笉鏂烽檷浣�锛屽洜姝や粖鍚庡湪澶氭暩(sh霉)鎯呮硜涓嬪畠灏囧彇浠ｉ洐妤靛瀷鏅堕珨绠�鎶�琛�(sh霉)銆�

鎬ц兘姒傝堪

銆�銆�鑸囬洐妤靛瀷鏅堕珨绠＄浉姣�锛孡DMOS绠＄殑澧炵泭鏇撮珮锛孡DMOS绠＄殑澧炵泭鍙仈(d谩)14dB浠ヤ笂锛岃�岄洐妤靛瀷鏅堕珨绠″湪5~6dB,閲囩敤LDMOS绠＄殑PA妯″鐨勫鐩婂彲閬�(d谩)60dB宸﹀彸銆傞�欒〃鏄庡皪(du矛)浜庣浉鍚岀殑杓稿嚭鍔熺巼闇�瑕佹洿灏戠殑鍣ㄤ欢锛屽緸鑰屽澶у姛鏀剧殑鍙潬鎬с��

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銆�銆�LDMOS鐢变簬鏇村鏄撹垏CMOS宸ヨ棟鍏煎鑰岃寤ｆ硾閲囩敤銆侺DMOS鍣ㄤ欢绲�(ji茅)妲�(g貌u)濡傚湒1鎵�绀猴紝LDMOS鏄竴绋洐鎿�(ku貌)鏁ｇ祼(ji茅)妲�(g貌u)鐨勫姛鐜囧櫒浠�銆傞�欓爡(xi脿ng)鎶�琛�(sh霉)鏄湪鐩稿悓鐨勬簮/婕忓崁(q奴)鍩熸敞鍏ュ叐娆�锛屼竴娆℃敞鍏ユ績搴﹁純澶э紙鍏稿瀷娉ㄥ叆鍔戦噺 1015cm-2锛夌殑鐮凤紙As锛夛紝鍙︿竴娆℃敞鍏ユ績搴﹁純?銆偳栨公铔ｂ敐?013cm-2锛夌殑纭硷紙B锛�銆傛敞鍏ヤ箣鍚庡啀閫�(j矛n)琛屼竴鍊�(g猫)楂樻韩鎺ㄩ��(j矛n)閬�(gu貌)绋�锛岀敱浜庣〖鎿�(ku貌)鏁ｆ瘮鐮峰揩锛屾墍浠ュ湪鏌垫サ閭婄晫涓嬫渻(hu矛)娌胯憲姗悜鎿�(ku貌)鏁ｆ洿閬�(yu菐n)锛堝湒涓璓闃憋級锛屽舰鎴愪竴鍊�(g猫)鏈夋績搴︽搴︾殑婧濋亾锛屽畠鐨勬簼閬撻暦(zh菐ng)搴︾敱閫欏叐娆℃┇鍚戞摯(ku貌)鏁ｇ殑璺濋洟涔嬪樊姹哄畾銆傜偤浜嗗鍔犳搳绌块浕澹�锛屽湪鏈夋簮鍗�(q奴)鍜屾紡鍗�(q奴)涔嬮枔鏈変竴鍊�(g猫)婕傜Щ鍗�(q奴)銆侺DMOS涓殑婕傜Щ鍗�(q奴)鏄┎椤�(l猫i)鍣ㄤ欢瑷�(sh猫)瑷�(j矛)鐨勯棞(gu膩n)閸�锛屾紓绉诲崁(q奴)鐨勯洔璩�(zh矛)婵冨害姣旇純浣�锛屽洜姝�锛岀暥(d膩ng)LDMOS 鎺ラ珮澹撴檪(sh铆)锛屾紓绉诲崁(q奴)鐢变簬鏄珮闃�锛岃兘澶犳壙鍙楁洿楂樼殑闆诲銆傚湒1鎵�绀篖DMOS鐨勫鏅舵摯(ku貌)灞曞埌婕傜Щ鍗�(q奴)鐨勫牬(ch菐ng)姘т笂闈紝鍏呯暥(d膩ng)鍫�(ch菐ng)妤垫澘锛屾渻(hu矛)寮卞寲婕傜Щ鍗�(q奴)鐨勮〃闈㈤浕鍫�(ch菐ng)锛屾湁鍒╀簬鎻愰珮鎿婄┛闆诲銆傚牬(ch菐ng)妤垫澘鐨勪綔鐢ㄥぇ灏忚垏鍫�(ch菐ng)妤垫澘鐨勯暦(zh菐ng)搴﹀瘑鍒囩浉闂�(gu膩n)銆�

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