{"id":667,"date":"2010-11-11T15:35:08","date_gmt":"2010-11-11T07:35:08","guid":{"rendered":"\/\/m.letratesoro.com\/2010\/11\/smt-solder-preforms\/"},"modified":"2023-12-14T21:39:09","modified_gmt":"2023-12-14T13:39:09","slug":"smt-solder-preforms","status":"publish","type":"post","link":"\/\/m.letratesoro.com\/2010\/11\/smt-solder-preforms\/","title":{"rendered":"SMT\u589e\u52a0\u710a\u932b\u91cf\u7684\u53e6\u4e00\u9078\u64c7 \u2500 Solder preforms (\u9810\u6210\u578b\u932b\u7247)"},"content":{"rendered":"

<\/p>\n

\u300c\u9810\u6210\u578b\u932b\u7247(Solder preforms)<\/font><\/strong>\u300d\u662f\u4e00\u7a2e\u9810\u5148\u64e0\u58d3\u6210\u578b\u7684\u5c0f\u932b\u7247\uff0c\u53ef\u4ee5\u7528\u4f86\u5c40\u90e8\u589e\u52a0\u932b\u818f\u5370\u5237\u91cf\uff0c\u5e6b\u52a9\u56e0\u70ba\u4f7f\u7528\u92fc\u677f\u5370\u5237\u800c\u53d7\u9650\u7684\u932b\u818f\u91cf\uff0c\u7528\u4f86\u6539\u5584\u710a\u932b\u7684\u54c1\u8cea\u8207\u710a\u932b\u5f37\u5ea6\u3002<\/font><\/p>\n

\u73fe\u4eca\u7684\u96fb\u5b50\u96f6\u4ef6\u5927\u90fd\u8d8a\u505a\u8d8a\u5c0f\uff0c\u96fb\u963b\u3001\u96fb\u5bb9\u3001\u96fb\u611f\u7b49small-chip\u96f6\u4ef6\u4e5f\u5f9e\u539f\u672c\u76841206\u5c3a\u5bf8\u4e00\u8def\u7e2e\u5c0f\u52300805\u30010603\u30010402\u30010201\u5230\u5e7e\u4e4e\u662f\u6975\u9650\u768401005\uff0c\u9019\u4e9b\u96fb\u5b50\u96f6\u4ef6\u7684\u5c3a\u5bf8\u505a\u5f97\u8d8a\u5c0f\uff0c\u5176\u5403\u932b\u91cf\u4e5f\u5c31\u8d8a\u7528\u8d8a\u5c11\uff0c\u6240\u4ee5\u76f8\u5c0d\u7684\u92fc\u677f\u7684\u539a\u5ea6\u4e5f\u5c31\u8d8a\u8b8a\u8d8a\u8584\uff0c\u5f9e\u539f\u672c\u6700\u5e38\u7528\u76840.18mm\u539a\u5ea6\u5230\u73fe\u5728\u76840.08mm\uff0c\u4f46\u662f\u4e26\u975e\u6240\u6709\u7684\u96f6\u4ef6\u90fd\u53ef\u4ee5\u9019\u6a23\u7684\u7e2e\u5c0f\u5c3a\u5bf8\uff0c\u50cf\u6709\u4e9b\u8207\u5916\u754c\u6e9d\u901a\u7684IO\u806f\u63a5\u5668(connector)\uff0c\u5982\u96fb\u8a71\u7dda\u63d2\u5b54\u3001\u7db2\u8def\u7dda\u63d2\u5b54\u3001ATM\u8b80\u5361\u5668\u2026\u7b49\uff0c\u9019\u4e9b\u96f6\u4ef6\u9084\u662f\u9700\u8981\u4e00\u5b9a\u7684\u710a\u932b\u91cf\u4f86\u78ba\u4fdd\u5176\u710a\u63a5\u7684\u5f37\u5ea6\u53ca\u54c1\u8cea\uff0c\u53e6\u5916\u6709\u4e9b\u50b3\u7d71\u63d2\u4ef6(THD)<\/a>\u96f6\u4ef6\u62ff\u4f86\u4f5c <\/font>past-in-hole<\/font><\/a> \u88fd\u7a0b\u6642\u4e5f\u9700\u8981\u6dfb\u52a0\u984d\u5916\u7684\u710a\u932b\u91cf\u4ee5\u6eff\u8db3\u6700\u5c0f\u710a\u63a5\u9700\u6c42\u3002<\/font><\/p>\n

<\/p>\n

\u90a3\u8981\u6709\u6c92\u6709\u8fa6\u6cd5\u4f7f\u7528\u8f03\u8584\u7684\u92fc\u677f\uff0c\u53c8\u53ef\u4ee5\u5c40\u90e8\u589e\u52a0\u932b\u91cf\u5462\uff1f<\/font>\u6709\u500b\u65b9\u6cd5\u662f\u63a1\u300c<\/font>step-up & step-down stencil \u968e\u68af\u5f0f\u92fc\u677f\u5c40\u90e8\u52a0\u539a\/\u6253\u8584<\/font><\/a>\u300d\u4f86\u5c40\u90e8\u589e\u52a0\u5176\u710a\u932b\u91cf\uff0c\u4f46\u9019\u7a2e\u92fc\u677f\u6240\u80fd\u589e\u52a0\u7684\u710a\u932b\u91cf\u662f\u6709\u9650\u7684\uff0c\u800c\u4e14\u4e5f\u6709\u6240\u9650\u5236\uff0c\u6709\u6642\u5019\u9084\u662f\u6703\u767c\u751f\u932b\u91cf\u4e0d\u8db3\u7684\u554f\u984c\uff0c\u6240\u4ee5\u5e02\u9762\u4e0a\u5c31\u51fa\u73fe\u4e86\u4e00\u7a2e\u6240\u8b02\u7684\u300c\u9810\u6210\u578b\u932b\u7247(Solder preforms<\/font><\/strong>)\u300d\u7684\u96f6\u4ef6\uff0c\u9019\u7a2e\u932b\u7247\u53ef\u4ee5\u4f5c\u6210\u5404\u7a2e\u5f0f\u6a23\u5f62\u72c0\u4f86\u7b26\u5408\u5be6\u969b\u7684\u9700\u6c42\uff0c\u5b83\u57fa\u672c\u4e0a\u5c31\u662f\u4e00\u584a\u7528\u710a\u932b\u64e0\u58d3\u800c\u6210\u7684\u932b\u584a\uff0c\u53ef\u4ee5\u7528\u4f86\u88dc\u8db3\u56e0\u92fc\u677f\u5370\u5237\u9650\u5236\u6240\u9020\u6210\u7684\u932b\u818f\u91cf\u4e0d\u8db3\u7f3a\u9ede\uff0c\u800c\u4e14\u9019\u7a2e\u9810\u6210\u578b\u932b\u7247<\/font><\/strong>\u4e00\u822c\u90fd\u6703\u88ab\u4f5c\u6210\u5377\u5e36\u5305\u88dd(tape and reel)<\/font>\uff0c\u53ef\u4ee5\u5229\u7528SMT\u6a5f\u5668\u4f86\u8cbc\u4ef6\u4ee5\u7bc0\u7701\u4eba\u529b\u6216\u907f\u514d\u4eba\u54e1\u64cd\u4f5c\u7684\u5931\u8aa4\u3002<\/font><\/p>\n

\u9019\u7a2e\u9810\u6210\u578b\u932b\u7247(Preforms)\u7684\u597d\u8655\u8207\u512a\u9ede\u6709\uff1a<\/font><\/h4>\n
    \n
  1. \n
    \u53ef\u4ee5\u5728 paste-in-hole \u7684\u88fd\u7a0b\u4e2d\u589e\u52a0\u932b\u91cf\uff0c\u8b93\u50b3\u7d71\u63d2\u4ef6\u96f6\u4ef6(THD)\u53ef\u4ee5\u6709\u8f03\u5b8c\u5168\u7684\u710a\u932b\u4e26\u6e1b\u5c11\u92b2\u932b\u7684\u4e0d\u8db3\u53ca\u5b54\u6d1e(voids)\u7684\u767c\u751f\u3002<\/font> 
    \"Solder_preforms07_m\" <\/p>\n

    (\u2193\u9810\u6210\u578b\u932b\u65bc\u52a0\u65bcPIN-IN-PASTE\u88fd\u7a0b)
    \"Solder_preforms05_m\"
    \"Solder_preforms04_m\"  <\/div>\n<\/li>\n

  2. \n
    \u53ef\u4ee5\u964d\u4f4e\u56e0\u96f6\u4ef6\u8173\u5e73\u6574\u5ea6(Co-planarity)\u4e0d\u8db3\u6240\u9020\u6210\u7684\u96f6\u4ef6\u7a7a\u710a\u7387\u3001\u4e26\u63d0\u6607\u5176\u53ef\u710a\u932b\u6027\u3002\u53ef\u4ee5\u5c07 Preforms \u7f6e\u653e\u65bc\u710a\u9ede\u4e0a\u4e26\u5c40\u90e8\u589e\u52a0\u5176\u710a\u932b\u91cf\u3002<\/font><\/div>\n<\/li>\n
  3. \n
    \u73fe\u5728\u7684\u300c\u9810\u6210\u578b\u932b\u7247\u300d\u5927\u591a\u5df2\u7d93\u6a19\u6e96\u5316\uff0c\u800c\u4e14\u505a\u6210\u5377\u5e36(tape-on-reel)\u5305\u88dd\uff0c\u53ef\u4ee5\u4f7f\u7528SMT\u6a5f\u5668\u4f86\u8cbc\u7247\uff0c\u5bb9\u6613\u4f5c\u696d\uff0c\u54c1\u8cea\u98a8\u96aa\u4f4e\u3002<\/font><\/div>\n<\/li>\n
  4. \n
    \u5728\u6709Epad\u7684QFN\u6216BTC(Bottom Termination Components)\u5e95\u90e8\u4f7f\u7528\u9810\u6210\u578b\u932b\u7247\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u710a\u932b\u6c23\u6ce1\u7387\u3002
    \u5efa\u8b70\u5ef6\u4f38\u95b1\u8b80\uff1a
    BTC\u53caQFN\u5c01\u88dd\u4e2d\u8b6f\u540d\u7a31\u53caEPad\u6c23\u6ce1\u7a7a\u6d1e\u7387\u5141\u6536\u6a19\u6e96<\/a><\/font><\/div>\n<\/li>\n<\/ol>\n

    \u9810\u6210\u578b\u932b\u7247\u7f3a\u9ede\u6709\uff1a<\/font><\/h4>\n
      \n
    • \n
      \u9019\u662f\u4e00\u7b46\u984d\u5916\u7684\u82b1\u8cbb\uff0c\u800c\u4e14\u5377\u5e36\u5305\u88dd\u53ef\u80fd\u6bd4\u9810\u6210\u578b\u932b\u7247\u672c\u8eab\u7684\u50f9\u9322\u9084\u8cb4\u3002\u5982\u679c\u53ef\u4ee5\u7684\u8a71\uff0c\u8cb7\u6563\u88dd\u6599\u4f86\u81ea\u5df1\u5377\u6599\uff0c\u6216\u8a31\u53ef\u4ee5\u7bc0\u7701\u4e00\u4e9b\u50f9\u9322\u3002<\/font> \u500b\u4eba\u5efa\u8b70\u5728\u5176\u4ed6\u589e\u52a0\u548c\u606f\u65b9\u6848\u90fd\u6c92\u8fa6\u6cd5\u7684\u60c5\u6cc1\u4e0b\u624d\u9078\u64c7\u9019\u7a2e\u9810\u6210\u578b\u932b\u7247\u65b9\u6848\u3002<\/font><\/div>\n<\/li>\n
    • \n
      Preforms\u5fc5\u9808\u653e\u7f6e\u65bc\u53ef\u4ee5\u63a5\u89f8\u5230\u96f6\u4ef6\u710a\u588a\u7684\u5730\u65b9\uff0c\u66f4\u6b63\u78ba\u7684\u8aaa\u6cd5\u662f\u8981\u653e\u7f6e\u5728\u8207\u932b\u818f\u63a5\u89f8\u7684\u5730\u65b9\uff0c\u9019\u6a23\u878d\u932b\u4e4b\u5f8c\u624d\u53ef\u4ee5\u9054\u5230\u589e\u52a0\u710a\u932b\u91cf\u7684\u76ee\u7684\u3002\u53e6\u5916\uff0c\u932b\u818f\u4e5f\u53ef\u4ee5\u5728\u904e\u56de\u710a\u524d\u9ecf\u4f4f\u932b\u7247\u3002<\/font><\/div>\n<\/li>\n<\/ul>\n

      \u9810\u6210\u578b\u932b\u7247(Solder preforms)\u4e5f\u53ef\u4ee5\u6709\u4e0d\u540c\u7684\u7528\u9014\uff0c\u6bd4\u5982\u8aaa\u7576\u4f5c\u63a5\u89f8\u7de9\u885d\uff0c\u5c07\u5176\u76f4\u63a5\u52a0\u5728\u5169\u500b\u91d1\u5c6c\u4ef6\u7684\u4e2d\u9593\uff1b\u6216\u662f\u7576\u4f5c\u5b89\u5168\u958b\u95dc(\u4fdd\u96aa\u7d72)\uff0c\u7576\u6eab\u5ea6\u9054\u5230\u7194\u878d\u6eab\u5ea6\u6642\u5c31\u6703\u77ed\u8def\uff0c\u8df3\u958b\u96fb\u6e90\u3002<\/font><\/p>\n

      \u9810\u6210\u578b\u932b\u7247\u7684\u6a19\u6e96\u5c3a\u5bf8\u898f\u683c<\/strong><\/font><\/p>\n

      \u9019\u662f\u67d0\u5bb6\u932b\u818f\u5ee0\u5546\u300c\u9810\u6210\u578b\u932b\u7247\u300d\u7684\u898f\u683c\uff0c\u5176\u4ed6\u7684\u932b\u818f\u5ee0\u5546\u61c9\u8a72\u4e5f\u90fd\u5927\u540c\u5c0f\u7570\u3002<\/font><\/p>\n