DFM 鍙埗閫犳€ц璁★細涓轰粈涔堜骇鍓嶈瘎瀹¤兘鐪?80% 鐨勮繑宸ユ垚鏈?/h1>

DFM锛圖esign for Manufacturing锛屽彲鍒堕€犳€ц璁★級鏄繛鎺?PCB 璁捐涓?SMT 鐢熶骇鐨勬ˉ姊併€傚畠鐨勬牳蹇冨師鐞嗗緢绠€鍗曪細鍦ㄨ璁￠樁娈靛鑺?1 灏忔椂锛屼骇绾夸笂灏戣姳 100 灏忔椂銆備絾澶у鏁颁腑灏忔壒閲忛」鐩烦杩?DFM 璇勫鈥斺€旂洿鍒伴噺浜х炕杞︺€?/p>

DFM 瀹′粈涔堬紵浜斿ぇ绫绘鏌?/h2>

1. 鐒婄洏璁捐

妫€鏌ユ竻鍗曪細鐒婄洏灏哄鏄惁绗﹀悎 IPC-7351 鏍囧噯锛烞GA 鐒婄洏鏄惁鏈夐樆鐒婇檺瀹氾紙SMD vs NSMD锛夛紵澶ч摐鐨繛鎺ョ剨鐩樻槸鍚﹀仛浜嗙儹闅旂锛坱hermal relief锛夛紵

甯歌闂锛氱剨鐩樹竴绔繛鎺ュぇ闈㈢Н閾滅毊锛堝 GND 灞傦級锛屽洖娴佺剨鏃堕摐鐨惛鐑繃蹇鑷寸剨鐩樹晶鍗囨俯涓嶈冻锛屽舰鎴?绔嬬"缂洪櫡銆備慨澶嶆柟妗堬細鍦ㄧ剨鐩樹笌閾滅毊涔嬮棿鍔?thermal relief 杩炴帴绾裤€?/p>

2. 闂磋窛涓庡瘑搴?/h3>

妫€鏌ユ竻鍗曪細灏忓瀷鐗囧紡鍏冧欢锛?201/0402锛夋渶灏忛棿璺濃墺0.3mm锛屽ぇ鍨嬪皝瑁呭拰 BGA 闇€鏇村ぇ闂磋窛銆侭GA 鍛ㄥ洿鏄惁鏈夎冻澶熺殑杩斾慨绌洪棿锛堚墺3mm锛夛紵楂樺厓浠舵槸鍚﹂伄鎸＄煯鍏冧欢鐨勭剨鎺ヨ矾寰勶紵

甯歌闂锛歈FP 鑺墖绱ц创 0603 鐢甸樆鎽嗘斁锛屽洖娴佺剨鍚?QFP 寮曡剼鐭矾鏃犳硶杩斾慨鈥斺€旂儥閾佸ご杩涗笉鍘汇€?/p>

3. 涓濆嵃涓庢瀬鎬?/h3>

妫€鏌ユ竻鍗曪細鎵€鏈?IC 鐨?Pin 1 鏍囪瘑鏄惁娓呮櫚锛熶簩鏋佺/閽界數瀹圭殑姝ｈ礋鏋佹爣璇嗘槸鍚︽槑纭紵涓濆嵃鏄惁瑕嗙洊鍦ㄧ剨鐩樹笂锛堝鑷村彲鐒婃€т笅闄嶏級锛?/p>

甯歌闂锛歀ED 鐏彔鐨勬瀬鎬ф爣璇嗚涓濆嵃瑕嗙洊锛岃创鐗囨満鏃犳硶閫氳繃瑙嗚璇嗗埆鏂瑰悜锛屽彧鑳戒汉宸ョ洰妫€銆?/p>

4. 鎷兼澘涓庡伐鑹鸿竟

妫€鏌ユ竻鍗曪細鎷兼澘鏂瑰紡鏄惁鍚堢悊锛圴-Cut vs 閭エ瀛旓級锛熷伐鑹鸿竟瀹藉害鏄惁鈮?mm锛烳ark 鐐规槸鍚﹀湪宸ヨ壓杈逛笂涓斾笉琚伄鎸★紵

甯歌闂锛氫笉瑙勫垯澶栧舰鏉挎嫾鏉垮悗鏈暀宸ヨ壓杈癸紝SMT 璐寸墖鏈烘棤娉曞す鎸佷紶閫侊紝蹇呴』鍔犳不鍏封€斺€旀瘡鍧楁澘澧炲姞娌诲叿鎴愭湰 锟?00+銆?/p>

5. 鍏冨櫒浠跺彲閲囪喘鎬?/h3>

妫€鏌ユ竻鍗曪細BOM 涓槸鍚︽湁 EOL锛堝仠浜э級鎴?NRND锛堜笉鎺ㄨ崘鏂拌璁★級鐗╂枡锛熸槸鍚︽湁浜ゆ湡 >12 鍛ㄧ殑绱х己鐗╂枡锛熸槸鍚︽湁鏇夸唬鍨嬪彿锛?/p>

甯歌闂锛欱OM 涓竴棰椾笓鐢ㄧ數婧?IC 浜ゆ湡 20 鍛ㄤ笖鏃犳浛浠ｅ瀷鍙枫€傚彂鐜版椂 PCB 宸叉姇浜р€斺€旂粨鏋滐細200 鍧楄８鏉垮湪浠撳簱鏀?5 涓湀绛?IC銆?/p>

DFM 璇勫鐨勬椂闂寸獥鍙?/h2>

DFM 璇勫鐨勬渶浣虫椂鏈烘槸 Gerber 鏂囦欢鐢熸垚鍚庛€佹墦鏍峰墠銆傝繖涓妭鐐规敼鍔ㄦ垚鏈渶浣庘€斺€旀敼涓€鐗?Gerber 涓嶉渶瑕佷换浣曠墿鏂欐垚鏈€備竴鏃?PCB 宸叉姇浜э紝浠讳綍璁捐淇敼閮芥剰鍛崇潃閲嶆柊鎶曟澘 + 宸叉姇浜ц８鏉挎姤搴熴€?/p>

璋佹潵鍋?DFM锛?/h2>

鐞嗘兂鎯呭喌鏄?PCBA 渚涘簲鍟嗙殑宸ヨ壓宸ョ▼甯堟潵鍋氣€斺€斾粬浠浜х嚎鑳藉姏锛堟渶灏忚创瑁呭厓浠躲€侀挗缃戝伐鑹鸿兘鍔涖€佸洖娴佺剨娓╁尯鏁伴噺锛夋湁鏈€鍑嗙‘鐨勮鐭ャ€傝璁¤€呰嚜宸辩殑 DFM 妫€鏌ュ彲浠ヨ繃婊ゆ帀 70% 鐨勯棶棰橈紝浣嗗墿涓嬬殑 30% 鍙湁浜х嚎涓婄殑浜虹煡閬撱€?/p>

寰峰煄鐨?DFM 娴佺▼

鎵€鏈夎繘鍏ヤ骇绾跨殑 PCB 鍦ㄦ墦鏍峰墠缁忚繃 3 閬?DFM 瀹℃煡锛?1) 鑷姩鍖栨鏌ワ細KiCad/Altium DFM 鎻掍欢璺?35 椤硅鍒欐鏌ワ紝5 鍒嗛挓鍐呭嚭鎶ュ憡銆?2) 浜哄伐澶嶆牳锛氬伐鑹哄伐绋嬪笀閫愰」纭鑷姩鍖栨姤鍛婄殑绾㈣壊椤广€?3) 瀹㈡埛娌熼€氾細灏?DFM 闂鍜屼慨鏀瑰缓璁互涓枃+鎴浘褰㈠紡鍙戠粰瀹㈡埛锛屽鎴风‘璁ゅ悗鏇存柊 Gerber銆?/p>

DFM 鐨勬姇璧勫洖鎶ョ巼

涓€娆?DFM 璇勫鐨勪汉鍔涙垚鏈害 2-4 灏忔椂锛堝伐绋嬫椂闂达級銆傝€屼竴娆￠噺浜ц繑宸ョ殑纭垚鏈細鎷嗙剨浜哄伐 + 鎶ュ簾鍏冧欢 + 閲嶆柊璐寸墖 + 寤惰浜ゆ湡缃氭銆傚吀鍨嬫瘮渚嬶細鎶曞叆 锟?00 鍋?DFM锛岄伩鍏?锟?0,000 鐨勮繑宸ユ崯澶?/strong>銆俁OI 绾?40:1銆?/p>

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