{"id":34190,"date":"2026-06-10T12:28:40","date_gmt":"2026-06-10T12:28:40","guid":{"rendered":"https:\/\/itbusinesstoday.com\/?p=34190"},"modified":"2026-06-10T12:28:40","modified_gmt":"2026-06-10T12:28:40","slug":"japans-compound-semiconductor-push-the-next-battleground-beyond-silicon","status":"publish","type":"post","link":"https:\/\/itbusinesstoday.com\/ja\/industrial-tech\/semiconductorandelectronics\/japans-compound-semiconductor-push-the-next-battleground-beyond-silicon\/","title":{"rendered":"\u65e5\u672c\u306e\u5316\u5408\u7269\u534a\u5c0e\u4f53\u3078\u306e\u6ce8\u529b\uff1a\u30b7\u30ea\u30b3\u30f3\u3092\u8d85\u3048\u308b\u6b21\u306e\u6226\u5834"},"content":{"rendered":"<?xml encoding=\"utf-8\" ?><p>For years, the conversation around Japan&rsquo;s semiconductor revival has revolved around two names. One is TSMC&rsquo;s JASM facility in Kumamoto. The other is Rapidus and its ambitious push toward 2nm manufacturing in Hokkaido. Both projects matter. Both signal that Japan wants a bigger role in advanced chip production again. Yet focusing only on silicon misses a much larger story unfolding beneath the surface.<\/p><p>Japan&rsquo;s approach to compound semiconductors is sort of straightforward on paper, but it&rsquo;s also strong when you look at how it&rsquo;s carried out. Rather than just staying in the usual race for ever smaller silicon chips, Japan is really leaning into Silicon Carbide, also called SiC, and Gallium Nitride, or GaN. These are the two technologies that keep showing up, more and more, across electric vehicles, AI infrastructure, industrial systems and even the next wave of communication networks. And no, the timing isn&rsquo;t random.<\/p><p>JEITA\u306f\u3001\u4e16\u754c\u306e\u96fb\u5b50\u30fbIT\u7523\u696d\u306e\u751f\u7523\u984d\u304c <a href=\"https:\/\/www.jeita.or.jp\/english\/press\/2025\/1216.pdf\" data-no-translation=\"\">$4,510.3 billion<\/a> by 2026, which would be helped along by rising needs for semiconductors, servers, and cloud infrastructure. When that kind of demand climbs, efficiency starts to matter just as much as raw compute. That&rsquo;s also where compound semiconductors kind of slide into the scene, right at the center of it.<\/p><h4>\u3053\u3061\u3089\u3082\u304a\u8aad\u307f\u304f\u3060\u3055\u3044\uff1a <a class=\"p-url\" href=\"https:\/\/itbusinesstoday.com\/ja\/tech\/cybersecurity\/machine-identity-security-the-next-cybersecurity-challenge-in-ai-driven-enterprises\/\" rel=\"bookmark\">\u30de\u30b7\u30f3\u30fb\u30a2\u30a4\u30c7\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\uff1aAI\u4e3b\u5c0e\u578b\u4f01\u696d\u306b\u304a\u3051\u308b\u6b21\u306a\u308b\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u8ab2\u984c<\/a><\/h4><h2>\u30b7\u30ea\u30b3\u30f3\u4ee5\u5916\u306e\u5316\u5408\u7269\u534a\u5c0e\u4f53\u304c\u306a\u305c\u91cd\u8981\u306a\u306e\u304b<\/h2><p>\u30b7\u30ea\u30b3\u30f3\u306f\u73fe\u4ee3\u306e\u30c7\u30b8\u30bf\u30eb\u4e16\u754c\u3092\u7bc9\u304d\u4e0a\u3052\u307e\u3057\u305f\u3002\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3084\u30ce\u30fc\u30c8\u30d1\u30bd\u30b3\u30f3\u3001\u30b5\u30fc\u30d0\u30fc\u3001\u305d\u3057\u3066\u6570\u3048\u5207\u308c\u306a\u3044\u307b\u3069\u306e\u96fb\u5b50\u6a5f\u5668\u306e\u539f\u52d5\u529b\u3068\u306a\u3063\u3066\u3044\u308b\u306e\u3067\u3059\u3002\u3068\u306f\u3044\u3048\u3001\u3069\u3093\u306a\u6280\u8853\u306b\u3082\u3044\u305a\u308c\u9650\u754c\u304c\u8a2a\u308c\u307e\u3059\u3002\u96fb\u529b\u9700\u8981\u304c\u9ad8\u307e\u308a\u3001\u52d5\u4f5c\u74b0\u5883\u304c\u53b3\u3057\u304f\u306a\u308b\u3068\u3001\u30b7\u30ea\u30b3\u30f3\u306f\u305d\u306e\u5229\u70b9\u306e\u4e00\u90e8\u3092\u5931\u3044\u59cb\u3081\u308b\u306e\u3067\u3059\u3002.<\/p><p>That&rsquo;s when compound semiconductors come into the picture.<\/p><p>\u5316\u5408\u7269\u534a\u5c0e\u4f53\u3068\u306f\u3001\u57fa\u672c\u7684\u306b\u306f\u8907\u6570\u306e\u5143\u7d20\u3092\u6df7\u5408\u3057\u3066\u4f5c\u3089\u308c\u305f\u6750\u6599\u306e\u3053\u3068\u3067\u3059\u3002\u73fe\u5728\u3001\u4ee3\u8868\u7684\u306a\u3082\u306e\u3068\u3057\u3066\u3001\u70ad\u5316\u30b1\u30a4\u7d20\uff08SiC\uff09\u3084\u7a92\u5316\u30ac\u30ea\u30a6\u30e0\uff08GaN\uff09\u306a\u3069\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u3044\u305a\u308c\u3082\u3001\u300c\u30ef\u30a4\u30c9\u30d0\u30f3\u30c9\u30ae\u30e3\u30c3\u30d7\u534a\u5c0e\u4f53\uff08Wide Bandgap semiconductors\uff09\u300d\u3001\u7565\u3057\u3066\u300cWBG\u300d\u3068\u547c\u3070\u308c\u308b\u3001\u3088\u308a\u5e83\u7bc4\u306a\u30b0\u30eb\u30fc\u30d7\u306b\u5c5e\u3057\u3066\u3044\u307e\u3059\u3002.<\/p><p>\u30ef\u30a4\u30c9\u30d0\u30f3\u30c9\u30ae\u30e3\u30c3\u30d7\u534a\u5c0e\u4f53\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u7528\u9014\u304c\u3042\u308a\u307e\u3059\uff1a<\/p><ul>\n<li>\u3088\u308a\u9ad8\u3044\u96fb\u5727<\/li>\n<li>\u6c17\u6e29\u306e\u4e0a\u6607<\/li>\n<li>\u3088\u308a\u9ad8\u3044\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u5468\u6ce2\u6570<\/li>\n<li>\u30a8\u30cd\u30eb\u30ae\u30fc\u640d\u5931\u306e\u4f4e\u6e1b<\/li>\n<\/ul><p>\u3053\u308c\u3089\u306e\u7279\u5fb4\u306f\u6280\u8853\u7684\u306a\u3082\u306e\u306b\u805e\u3053\u3048\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u5b9f\u969b\u306e\u5f71\u97ff\u306f\u5bb9\u6613\u306b\u7406\u89e3\u3067\u304d\u308b\u3082\u306e\u3067\u3059\u3002.<\/p><p>\u96fb\u6c17\u81ea\u52d5\u8eca\u306b\u304a\u3044\u3066\u3001\u96fb\u529b\u5909\u63db\u52b9\u7387\u306f\u822a\u7d9a\u8ddd\u96e2\u3084\u30d0\u30c3\u30c6\u30ea\u30fc\u6027\u80fd\u306b\u76f4\u63a5\u5f71\u97ff\u3057\u307e\u3059\u3002AI\u306b\u304a\u3044\u3066\u306f <a href=\"https:\/\/itbusinesstoday.com\/ja\/knowledge-hub\/staff-writers\/global-data-localization-laws-what-it-leaders-must-prepare-for-in-2026\/\">\u30c7\u30fc\u30bf<\/a> \u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u306b\u304a\u3044\u3066\u306f\u3001\u308f\u305a\u304b\u306a\u52b9\u7387\u306e\u5411\u4e0a\u3067\u3082\u3001\u81a8\u5927\u306a\u91cf\u306e\u96fb\u529b\u6d88\u8cbb\u3092\u524a\u6e1b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u901a\u4fe1\u5206\u91ce\u3067\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c6G\u5bfe\u5fdc\u3078\u3068\u79fb\u884c\u3059\u308b\u306b\u3064\u308c\u3001\u9ad8\u5468\u6ce2\u5e2f\u57df\u3067\u306e\u6027\u80fd\u304c\u307e\u3059\u307e\u3059\u91cd\u8981\u306b\u306a\u3063\u3066\u304d\u3066\u3044\u307e\u3059\u3002.<\/p><p>\u30b7\u30ea\u30b3\u30f3\u306f\u3001\u591a\u304f\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u7528\u9014\u306b\u304a\u3044\u3066\u4f9d\u7136\u3068\u3057\u3066\u512a\u308c\u305f\u7d20\u6750\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u8ab2\u984c\u304c\u30c7\u30fc\u30bf\u306e\u51e6\u7406\u304b\u3089\u96fb\u529b\u306e\u52b9\u7387\u7684\u306a\u4f1d\u9001\u3078\u3068\u79fb\u308b\u3068\u3001SiC\u3084GaN\u306e\u65b9\u304c\u9069\u3057\u305f\u9078\u629e\u80a2\u3068\u306a\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002.<\/p><p>This sort of distinction is getting more relevant by the day, because the next phase of digital infrastructure won&rsquo;t be constrained only by computing power, not by processing alone. Energy usage is increasingly acting like the key bottleneck. AI models keep getting larger, data centers keep stretching outward, and power requirements keep climbing. So as a result, the technologies that cut energy wastage are starting to matter strategically, in a way that&rsquo;s hard to ignore.<\/p><p>\u305d\u306e\u89b3\u70b9\u304b\u3089\u898b\u308c\u3070\u3001\u5316\u5408\u7269\u534a\u5c0e\u4f53\u306f\u30b7\u30ea\u30b3\u30f3\u306b\u53d6\u3063\u3066\u4ee3\u308f\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u308c\u3089\u306f\u3001\u30b7\u30ea\u30b3\u30f3\u3067\u306f\u89e3\u6c7a\u304c\u96e3\u3057\u3044\u8ab2\u984c\u3092\u89e3\u6c7a\u3057\u3066\u3044\u308b\u306e\u3067\u3059\u3002.<\/p><h2>Mapping Japan&rsquo;s Strategic Advantage Through Materials and Infrastructure<\/h2><p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-34192\" src=\"https:\/\/itbusinesstoday.com\/wp-content\/uploads\/2026\/06\/Mapping-Japans-Strategic-Advantage-Through-Materials-and-Infrastructure.webp\" alt=\"Japan&rsquo;s Compound Semiconductor Push\" width=\"1200\" height=\"800\"><\/p><p>\u591a\u304f\u306e\u56fd\u304c\u534a\u5c0e\u4f53\u88fd\u9020\u5de5\u5834\u306e\u8a98\u81f4\u306b\u529b\u3092\u5165\u308c\u3066\u3044\u307e\u3059\u3002\u65e5\u672c\u306f\u305d\u306e\u5148\u3092\u898b\u636e\u3048\u3066\u3044\u307e\u3059\u3002.<\/p><p>The real strength of Japan&rsquo;s semiconductor ecosystem has never been limited to chip manufacturing. It sits within decades of expertise across materials, substrates, specialty chemicals, precision equipment, and industrial engineering. Those capabilities become particularly valuable in the compound semiconductor industry because material quality often determines device performance.<\/p><p>\u3060\u304b\u3089\u3053\u305d\u3001\u4fe1\u8d8a\u5316\u5b66\u5de5\u696d\u3001\u4f4f\u53cb\u96fb\u6c17\u5de5\u696d\u3001\u30ed\u30fc\u30e0\u3068\u3044\u3063\u305f\u4f01\u696d\u304c\u3001\u3053\u306e\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3044\u3066\u3053\u308c\u307b\u3069\u91cd\u8981\u306a\u4f4d\u7f6e\u3092\u5360\u3081\u3066\u3044\u308b\u306e\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u4f01\u696d\u306e\u5c02\u9580\u77e5\u8b58\u306f\u3001\u5358\u306b\u30c1\u30c3\u30d7\u3092\u88fd\u9020\u3059\u308b\u3060\u3051\u306b\u3068\u3069\u307e\u308a\u307e\u305b\u3093\u3002\u305d\u308c\u3089\u306f\u3001\u305d\u3082\u305d\u3082\u6700\u5148\u7aef\u306e\u534a\u5c0e\u4f53\u88fd\u9020\u3092\u53ef\u80fd\u306b\u3059\u308b\u57fa\u76e4\u306e\u69cb\u7bc9\u306b\u8ca2\u732e\u3057\u3066\u3044\u308b\u306e\u3067\u3059\u3002.<\/p><p>\u7814\u7a76\u6a5f\u95a2\u3082\u3001\u3053\u306e\u5206\u91ce\u3067\u5927\u304d\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059\u3002 \u7523\u696d\u6280\u8853\u7dcf\u5408\u7814\u7a76\u6240\uff08AIST\uff09\u3084\u305d\u306e\u534a\u5c0e\u4f53\u30d5\u30ed\u30f3\u30c6\u30a3\u30a2\u7814\u7a76\u30bb\u30f3\u30bf\u30fc\u306e\u3088\u3046\u306a\u7d44\u7e54\u306f\u3001\u7814\u7a76\u5ba4\u3067\u306e\u6210\u679c\u3068\u3001\u305d\u306e\u5f8c\u5546\u696d\u5316\u3055\u308c\u308b\u88fd\u54c1\u3068\u306e\u6a4b\u6e21\u3057\u5f79\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u305d\u306e\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u306f\u5fc5\u305a\u3057\u3082\u30b9\u30e0\u30fc\u30ba\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u3053\u306e\u9023\u643a\u306f\u91cd\u8981\u3067\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u5316\u5408\u7269\u534a\u5c0e\u4f53\u306b\u306f\u7d99\u7d9a\u7684\u306a\u6539\u826f\u304c\u5fc5\u8981\u3067\u3042\u308a\u3001\u6750\u6599\u3001\u6b69\u7559\u307e\u308a\u3001\u305d\u3057\u3066\u88fd\u9020\u30d7\u30ed\u30bb\u30b9\u5168\u4f53\u304c\u3001\u4e00\u5ea6\u304d\u308a\u306e\u6539\u5584\u3067\u306f\u306a\u304f\u3001\u5e38\u306b\u9032\u5316\u3057\u7d9a\u3051\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u304b\u3089\u3067\u3059\u3002.<\/p><p>And then there are regional industrial clusters, they really add another layer to Japan&rsquo;s standing. Instead of keeping know-how in one single place, the country has built together an ecosystem of interconnected networks involving manufacturers, suppliers, researchers, and equipment makers. That whole setup makes the system more resilient, and it lets ideas travel through the supply chain more efficiently, like less friction, more steady momentum.<\/p><p>The numbers reinforce this strength. According to SEAJ, sales of semiconductor manufacturing equipment made in Japan are forecast to reach &yen;5.50 trillion in fiscal 2026, up from <a href=\"https:\/\/www.seaj.or.jp\/english\/file\/jan2026seajforecastforpress_e.pdf\" data-no-translation=\"\">&yen;4.91 trillion<\/a> in fiscal 2025. That growth is not simply a reflection of market demand. It highlights the continued relevance of Japan&rsquo;s manufacturing capabilities at a time when global semiconductor competition is intensifying.<\/p><p>\u5de5\u5834\u3092\u5efa\u8a2d\u3067\u304d\u308b\u56fd\u306f\u6570\u591a\u304f\u3042\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u6750\u6599\u3001\u8a2d\u5099\u3001\u88fd\u9020\u30d7\u30ed\u30bb\u30b9\u306b\u304a\u3044\u3066\u6570\u5341\u5e74\u306b\u308f\u305f\u3063\u3066\u84c4\u7a4d\u3055\u308c\u305f\u5c02\u9580\u77e5\u8b58\u3092\u518d\u73fe\u3067\u304d\u308b\u56fd\u306f\u3001\u306f\u308b\u304b\u306b\u5c11\u306a\u3044\u306e\u3067\u3059\u3002\u3053\u306e\u9055\u3044\u3053\u305d\u304c\u3001\u6700\u5148\u7aef\u306e\u534a\u5c0e\u4f53\u88fd\u9020\u5206\u91ce\u3067\u9577\u5e74\u306b\u308f\u305f\u308a\u30b7\u30a7\u30a2\u3092\u843d\u3068\u3057\u3066\u3044\u308b\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u65e5\u672c\u304c\u3044\u307e\u3060\u306b\u3053\u308c\u307b\u3069\u5927\u304d\u306a\u5f71\u97ff\u529b\u3092\u4fdd\u3061\u7d9a\u3051\u3066\u3044\u308b\u7406\u7531\u3092\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002.<\/p><h2>METI&rsquo;s Blueprint Linking Digital Growth and Green Transformation<\/h2><p>Japan&rsquo;s compound semiconductor strategy cannot be understood without examining the role of the Ministry of Economy, Trade and Industry (METI).<\/p><p>\u7d4c\u6e08\u7af6\u4e89\u529b\u306e\u307f\u306b\u7126\u70b9\u3092\u5f53\u3066\u305f\u5f93\u6765\u306e\u7523\u696d\u653f\u7b56\u3068\u306f\u7570\u306a\u308a\u3001\u7d4c\u6e08\u7523\u696d\u7701\u306f\u534a\u5c0e\u4f53\u306b\u3064\u3044\u3066\u3001\u76f8\u4e92\u306b\u95a2\u9023\u3059\u308b2\u3064\u306e\u8996\u70b9\u304b\u3089\u6349\u3048\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u304d\u3066\u3044\u307e\u3059\u30021\u3064\u76ee\u306f\u30c7\u30b8\u30bf\u30eb\u30c8\u30e9\u30f3\u30b9\u30d5\u30a9\u30fc\u30e1\u30fc\u30b7\u30e7\u30f3\u3067\u3059\u30022\u3064\u76ee\u306f\u30b0\u30ea\u30fc\u30f3\u30fb\u30c8\u30e9\u30f3\u30b9\u30d5\u30a9\u30fc\u30e1\u30fc\u30b7\u30e7\u30f3\u3067\u3042\u308a\u3001\u4e00\u822c\u306b <a href=\"https:\/\/www.enecho.meti.go.jp\/en\/category\/others\/basic_plan\/pdf\/7th_outline.pdf\" data-no-translation=\"\">GX<\/a>.<\/p><h3>\u9577\u671f\u7684\u306a\u7523\u696d\u57fa\u76e4\u306e\u69cb\u7bc9<\/h3><p>\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306e\u6700\u3082\u9855\u8457\u306a\u4f8b\u306e\u4e00\u3064\u304c\u3001\u30b0\u30ea\u30fc\u30f3\u30fb\u30a4\u30ce\u30d9\u30fc\u30b7\u30e7\u30f3\u30fb\u30d5\u30a1\u30f3\u30c9\u3067\u3059\u3002.<\/p><p>\u7d4c\u6e08\u7523\u696d\u7701\u306f\u3001\u3053\u306e\u57fa\u91d1\u3092 <a href=\"https:\/\/www.meti.go.jp\/english\/policy\/energy_environment\/global_warming\/gifund\/index.html\" data-no-translation=\"\">&yen;2 trillion<\/a> \u305d\u3057\u3066\u3001\u7814\u7a76\u958b\u767a\u304b\u3089\u5546\u54c1\u5316\u3001\u793e\u4f1a\u5c0e\u5165\u306b\u81f3\u308b\u307e\u3067\u3001\u6700\u592710\u5e74\u9593\u306b\u308f\u305f\u308b\u652f\u63f4\u3092\u63d0\u4f9b\u3067\u304d\u308b\u3088\u3046\u8a2d\u8a08\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u671f\u9593\u8a2d\u5b9a\u306f\u7279\u306b\u91cd\u8981\u3067\u3059\u3002.<\/p><p>\u534a\u5c0e\u4f53\u7523\u696d\u306f\u9078\u6319\u306e\u30b5\u30a4\u30af\u30eb\u306b\u5408\u308f\u305b\u3066\u52d5\u3044\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u6280\u8853\u30b5\u30a4\u30af\u30eb\u306b\u57fa\u3065\u3044\u3066\u904b\u55b6\u3055\u308c\u3066\u304a\u308a\u3001\u6280\u8853\u304c\u771f\u306b\u6210\u719f\u3059\u308b\u307e\u3067\u306b\u306f\u6570\u5e74\u3092\u8981\u3059\u308b\u3053\u3068\u3082\u3042\u308b\u305f\u3081\u3001\u65e5\u672c\u306f\u9577\u671f\u7684\u306a\u8cc7\u91d1\u78ba\u4fdd\u3092\u9078\u629e\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u76ee\u7684\u306f\u3001\u6975\u3081\u3066\u5358\u7d14\u306a\u3082\u306e\u3067\u3001\u6280\u8853\u7684\u306a\u512a\u4f4d\u6027\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u306f\u9577\u671f\u9593\u306b\u308f\u305f\u308b\u5fcd\u8010\u3068\u6301\u7d9a\u7684\u306a\u6295\u8cc7\u304c\u5fc5\u8981\u3068\u306a\u308b\u3053\u306e\u696d\u754c\u306b\u3001\u3042\u308b\u7a0b\u5ea6\u306e\u5b89\u5b9a\u6027\u3092\u3082\u305f\u3089\u3059\u3053\u3068\u306b\u3042\u308a\u307e\u3059\u3002.<\/p><p>\u5316\u5408\u7269\u534a\u5c0e\u4f53\u30e1\u30fc\u30ab\u30fc\u306b\u3068\u3063\u3066\u3001\u305d\u306e\u3088\u3046\u306a\u652f\u63f4\u304c\u3042\u308c\u3070\u3001\u30a4\u30ce\u30d9\u30fc\u30b7\u30e7\u30f3\u304c\u7814\u7a76\u5ba4\u304b\u3089\u629c\u3051\u51fa\u3057\u3001\u5358\u306a\u308b\u30c7\u30e2\u306b\u3068\u3069\u307e\u3089\u305a\u3001\u5b9f\u969b\u306e\u5927\u578b\u7523\u696d\u898f\u6a21\u3067\u306e\u5b9f\u7528\u5316\u3078\u3068\u3064\u306a\u304c\u308a\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002.<\/p><h3>\u306a\u305c\u30a8\u30cd\u30eb\u30ae\u30fc\u52b9\u7387\u5316\u304c\u56fd\u5bb6\u7684\u306a\u512a\u5148\u8ab2\u984c\u3068\u306a\u3063\u305f\u306e\u304b<\/h3><p>Another important signal comes from Japan&rsquo;s Strategic Energy Plan.<\/p><p>\u653f\u5e9c\u306f\u3001\u30c7\u30b8\u30bf\u30eb\u30c8\u30e9\u30f3\u30b9\u30d5\u30a9\u30fc\u30e1\u30fc\u30b7\u30e7\u30f3\u3084\u30b0\u30ea\u30fc\u30f3\u30fb\u30c8\u30e9\u30f3\u30b9\u30d5\u30a9\u30fc\u30e1\u30fc\u30b7\u30e7\u30f3\u306b\u3088\u3063\u3066\u751f\u3058\u308b\u96fb\u529b\u9700\u8981\u306e\u5897\u52a0\u306b\u5bfe\u51e6\u3059\u308b\u305f\u3081\u3001\u534a\u5c0e\u4f53\u3084\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u306e\u30a8\u30cd\u30eb\u30ae\u30fc\u52b9\u7387\u3092\u5411\u4e0a\u3055\u305b\u308b\u3068\u660e\u8a00\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u58f0\u660e\u306f\u4e00\u898b\u5358\u7d14\u660e\u5feb\u306b\u898b\u3048\u307e\u3059\u304c\u3001\u305d\u3053\u306b\u306f\u8003\u3048\u65b9\u306e\u5927\u304d\u306a\u8ee2\u63db\u304c\u8868\u308c\u3066\u3044\u307e\u3059\u3002.<\/p><p>\u9577\u5e74\u306b\u308f\u305f\u308a\u3001\u534a\u5c0e\u4f53\u653f\u7b56\u306f\u4e3b\u306b\u6f14\u7b97\u6027\u80fd\u306b\u91cd\u70b9\u3092\u7f6e\u3044\u3066\u304d\u307e\u3057\u305f\u3002\u4eca\u65e5\u3067\u306f\u3001\u52b9\u7387\u6027\u3082\u540c\u69d8\u306b\u91cd\u8981\u306b\u306a\u308a\u3064\u3064\u3042\u308a\u307e\u3059\u3002.<\/p><p>AI\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u306f\u3001\u3053\u306e\u8ab2\u984c\u3092\u5982\u5b9f\u306b\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u8a08\u7b97\u80fd\u529b\u304c\u5411\u4e0a\u3059\u308b\u305f\u3073\u306b\u3001\u8ffd\u52a0\u306e\u96fb\u529b\u304c\u5fc5\u8981\u3068\u306a\u308a\u307e\u3059\u3002AI\u306e\u5c0e\u5165\u304c\u52a0\u901f\u3059\u308b\u306b\u3064\u308c\u3001\u96fb\u529b\u6d88\u8cbb\u91cf\u3082\u305d\u308c\u306b\u4f34\u3063\u3066\u5897\u52a0\u3057\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u30a8\u30cd\u30eb\u30ae\u30fc\u640d\u5931\u3092\u524a\u6e1b\u3059\u308b\u6280\u8853\u306f\u3001\u6226\u7565\u7684\u306b\u91cd\u8981\u306a\u4fa1\u5024\u3092\u6301\u3064\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002.<\/p><p>This is where compound semiconductors fit naturally into Japan&rsquo;s broader policy framework.<\/p><p>SiC\u304a\u3088\u3073GaN\u30c7\u30d0\u30a4\u30b9\u306f\u3001\u96fb\u529b\u5909\u63db\u52b9\u7387\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u30a8\u30cd\u30eb\u30ae\u30fc\u306e\u7121\u99c4\u3092\u524a\u6e1b\u3057\u3001\u5897\u52a0\u3059\u308b\u96fb\u529b\u9700\u8981\u3078\u306e\u5bfe\u5fdc\u3092\u652f\u63f4\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30c7\u30b8\u30bf\u30eb\u5316\u306e\u9032\u5c55\u3068\u30ab\u30fc\u30dc\u30f3\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u76ee\u6a19\u306e\u4e21\u65b9\u3092\u540c\u6642\u306b\u652f\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p><p>\u305d\u306e\u6574\u5408\u6027\u304c\u3001\u306a\u305c\u8907\u5408\u4f53\u304c <a href=\"https:\/\/itbusinesstoday.com\/ja\/industrial-tech\/how-semiconductors-are-powering-the-ai-economy-the-technology-behind-intelligent-scale\/\">\u534a\u5c0e\u4f53<\/a> occupy such an important place within Japan&rsquo;s industrial strategy. They are not merely another semiconductor category. They sit at the intersection of technology policy, energy policy, and economic competitiveness.<\/p><h2>The Geopolitical Shield Behind Japan&rsquo;s Semiconductor Strategy<\/h2><p><img decoding=\"async\" class=\"alignnone size-full wp-image-34193\" src=\"https:\/\/itbusinesstoday.com\/wp-content\/uploads\/2026\/06\/The-Geopolitical-Shield-Behind-Japans-Semiconductor-Strategy.webp\" alt=\"Japan&rsquo;s Compound Semiconductor Push\" width=\"1200\" height=\"800\"><\/p><p>\u5316\u5408\u7269\u534a\u5c0e\u4f53\u306e\u7269\u8a9e\u306f\u3001\u540c\u6642\u306b\u5730\u653f\u5b66\u7684\u306a\u7269\u8a9e\u3067\u3082\u3042\u308a\u307e\u3059\u3002.<\/p><p>\u65e5\u672c\u306e\u534a\u5c0e\u4f53\u7523\u696d\u306f\u3001\u305d\u306e\u6b74\u53f2\u306e\u5927\u90e8\u5206\u306b\u304a\u3044\u3066\u3001\u3044\u308f\u3070\u72ec\u81ea\u306e\u300c\u30d0\u30d6\u30eb\u300d\u306e\u3088\u3046\u306a\u3001\u304b\u306a\u308a\u9589\u9396\u7684\u306a\u30e2\u30c7\u30eb\u3067\u904b\u55b6\u3055\u308c\u3066\u304d\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u6700\u8fd1\u3067\u306f\u3001\u305d\u306e\u72b6\u6cc1\u306f\u4e00\u5909\u3057\u3001\u3080\u3057\u308d\u3088\u308a\u4e0d\u5b89\u5b9a\u306a\u69d8\u76f8\u3092\u5448\u3057\u3066\u3044\u307e\u3059\u3002\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u306f\u4eca\u3084\u30b0\u30ed\u30fc\u30d0\u30eb\u5316\u3057\u3001\u6280\u8853\u7af6\u4e89\u306f\u6fc0\u5316\u306e\u4e00\u9014\u3092\u305f\u3069\u3063\u3066\u304a\u308a\u3001\u7d4c\u6e08\u5b89\u5168\u4fdd\u969c\u306f\u5358\u306a\u308b\u80cc\u666f\u7684\u306a\u8ab2\u984c\u3067\u306f\u306a\u304f\u3001\u653f\u7b56\u306e\u6838\u5fc3\u7684\u306a\u8ab2\u984c\u3078\u3068\u5909\u8c8c\u3092\u9042\u3052\u307e\u3057\u305f\u3002.<\/p><p>Japan&rsquo;s general move has been to lean into strategic partnerships while still guarding, or shielding, the areas where it genuinely has uncommon strengths.<\/p><p>In Japan&rsquo;s 2025 <a href=\"https:\/\/www5.cao.go.jp\/keizai-shimon\/kaigi\/cabinet\/honebuto\/2025\/2025_basicpolicies_en.pdf\" data-no-translation=\"\">Basic Policy<\/a>, the message is that Japan must push for greater self-reliance, while also securing its technological indispensability by building stronger supply chains for essential goods. The word &lsquo;technological indispensability&rsquo; actually deserves more attention, because it kind of sums up the point of Japan&rsquo;s current approach, in a way that feels almost unavoidable.<\/p><p>Japan doesn&rsquo;t necessarily need to dominate every semiconductor category, all the time, or at all.<\/p><p>\u305d\u306e\u4ee3\u308f\u308a\u3001\u305d\u308c\u3092\u7f6e\u304d\u63db\u3048\u308b\u306e\u304c\u96e3\u3057\u304f\u306a\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p><p>\u5316\u5408\u7269\u534a\u5c0e\u4f53\u306f\u3001\u305d\u306e\u76ee\u6a19\u3078\u306e\u9053\u7b4b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u91cd\u8981\u306a\u6750\u6599\u3001\u9ad8\u5ea6\u306a\u57fa\u677f\u3001\u88fd\u9020\u30ce\u30a6\u30cf\u30a6\u3001\u305d\u3057\u3066\u5c02\u7528\u8a2d\u5099\u3092\u638c\u63e1\u3059\u308b\u3053\u3068\u3067\u3001\u751f\u7523\u91cf\u3060\u3051\u306b\u3068\u3069\u307e\u3089\u306a\u3044\u5f71\u97ff\u529b\u3092\u751f\u307f\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p><p>\u3053\u3053\u3067\u3001\u65e5\u672c\u3001\u7c73\u56fd\u3001\u6b27\u5dde\u306e\u4e09\u8005\u9593\u306e\u95a2\u4fc2\u304c\u307e\u3059\u307e\u3059\u91cd\u8981\u306b\u306a\u3063\u3066\u304d\u307e\u3059\u3002\u7c73\u56fd\u306f\u3001\u6700\u5148\u7aef\u306e\u534a\u5c0e\u4f53\u8a2d\u8a08\u3068\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u5206\u91ce\u306b\u304a\u3051\u308b\u30ea\u30fc\u30c0\u30fc\u30b7\u30c3\u30d7\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u6b27\u5dde\u306f\u3001\u7523\u696d\u9700\u8981\u3068\u5c02\u9580\u6280\u8853\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u65e5\u672c\u306f\u3001\u4e0d\u53ef\u6b20\u306a\u6750\u6599\u3001\u88fd\u9020\u80fd\u529b\u3001\u305d\u3057\u3066\u5f37\u56fa\u306a\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002.<\/p><p>\u53cc\u65b9\u304c\u4e92\u3044\u306b\u4f9d\u5b58\u3057\u5408\u3063\u3066\u3044\u307e\u3059\u3002.<\/p><p>\u305d\u306e\u76f8\u4e92\u4f9d\u5b58\u95a2\u4fc2\u304c\u30ec\u30b8\u30ea\u30a8\u30f3\u30b9\u3092\u751f\u307f\u51fa\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u7279\u5b9a\u306e\u56fd\u304c\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306b\u5bfe\u3057\u3066\u904e\u5ea6\u306e\u5f71\u97ff\u529b\u3092\u884c\u4f7f\u3059\u308b\u30ea\u30b9\u30af\u3082\u4f4e\u6e1b\u3057\u307e\u3059\u3002.<\/p><p>\u305d\u306e\u610f\u5473\u3067\u3001\u5316\u5408\u7269\u534a\u5c0e\u4f53\u306f\u5358\u306a\u308b\u5de5\u696d\u88fd\u54c1\u4ee5\u4e0a\u306e\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u308c\u3089\u306f\u3001\u3088\u308a\u5e83\u7bc4\u306a\u7d4c\u6e08\u5b89\u5168\u4fdd\u969c\u306e\u67a0\u7d44\u307f\u306e\u4e2d\u3067\u3001\u6226\u7565\u7684\u8cc7\u7523\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3066\u3044\u308b\u306e\u3067\u3059\u3002.<\/p><h2>The Real Measure of Japan&rsquo;s Semiconductor Resurgence<\/h2><p>\u65e5\u672c\u3092\u3081\u3050\u308b\u4e16\u754c\u7684\u306a\u8b70\u8ad6\u306e\u591a\u304f\u306f\u3001\u540c\u56fd\u304c\u30b7\u30ea\u30b3\u30f3\u88fd\u9020\u306e\u6700\u5148\u7aef\u306b\u8fd4\u308a\u54b2\u3051\u308b\u304b\u3069\u3046\u304b\u306b\u7126\u70b9\u304c\u5f53\u3066\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u554f\u3044\u306f\u91cd\u8981\u3067\u3059\u304c\u3001\u6700\u3082\u91cd\u8981\u306a\u554f\u984c\u3067\u306f\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002.<\/p><p>\u3088\u308a\u91cd\u8981\u306a\u554f\u984c\u306f\u3001\u65e5\u672c\u304c\u4e16\u754c\u304b\u3089\u5bb9\u6613\u306b\u7121\u8996\u3067\u304d\u306a\u3044\u7acb\u5834\u3092\u78ba\u4fdd\u3067\u304d\u308b\u304b\u3069\u3046\u304b\u3067\u3059\u3002.<\/p><p>\u6700\u5148\u7aef\u306e2nm\u30d7\u30ed\u30bb\u30b9 <a href=\"https:\/\/itbusinesstoday.com\/ja\/industrial-tech\/semiconductorandelectronics\/beyond-silicon-how-japan-is-advancing-gallium-nitride-and-silicon-carbide-for-next-gen-chips\/\">\u30c1\u30c3\u30d7\u30b9<\/a> \u5a01\u4fe1\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002\u5316\u5408\u7269\u534a\u5c0e\u4f53\u306f\u3001\u305d\u306e\u5b58\u5728\u610f\u7fa9\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u3001\u96fb\u6c17\u81ea\u52d5\u8eca\u3001\u7523\u696d\u7528\u30b7\u30b9\u30c6\u30e0\u3001\u518d\u751f\u53ef\u80fd\u30a8\u30cd\u30eb\u30ae\u30fc\u30a4\u30f3\u30d5\u30e9\u3001\u901a\u4fe1\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3001\u305d\u3057\u3066\u307e\u3059\u307e\u3059AI\u305d\u306e\u3082\u306e\u3092\u652f\u3048\u308b\u96fb\u529b\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u5185\u90e8\u306b\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u307e\u3059\u3002.<\/p><p>That reality changes how Japan&rsquo;s semiconductor resurgence should be measured. The future will not belong only to the countries that build the fastest chips. It will also belong to those that control the materials, technologies, and infrastructure that keep the digital economy running efficiently. On that front, Japan is not chasing the next semiconductor era. It is quietly helping define it.<\/p>","protected":false},"excerpt":{"rendered":"<p>For years, the conversation around Japan&rsquo;s semiconductor revival has revolved around two names. One is TSMC&rsquo;s JASM facility in Kumamoto. The other is Rapidus and its ambitious push toward 2nm manufacturing in Hokkaido. Both projects matter. Both signal that Japan wants a bigger role in advanced chip production again. Yet focusing only on silicon misses a much larger story unfolding beneath the surface.Japan&rsquo;s approach to compound semiconductors is sort of straightforward on paper, but it&rsquo;s also strong when you look at how it&rsquo;s carried out. Rather than just staying in the usual race for ever smaller silicon chips, Japan is really leaning into Silicon Carbide, also called SiC, and Gallium [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":34191,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"wprm-recipe-roundup-name":"","wprm-recipe-roundup-description":"","postBodyCss":"","postBodyMargin":[],"postBodyPadding":[],"postBodyBackground":{"backgroundType":"classic","gradient":""},"footnotes":""},"categories":[84,180,192,201],"tags":[6033,346,172,13447,923],"ppma_author":[325],"class_list":["post-34190","post","type-post","status-publish","format-standard","has-post-thumbnail","category-industrial-tech","category-knowledge-hub","category-semiconductorandelectronics","category-staff-writers","tag-green-transformation","tag-manufacturing","tag-semiconductor","tag-silicon","tag-telecommunications"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Japan\u2019s Compound Semiconductor Push<\/title>\n<meta name=\"description\" content=\"Japan\u2019s strategic pivot to compound semiconductors. 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Explore how METI leverages SiC & GaN to dominate EV, 6G, and green tech beyond silicon.","og_url":"https:\/\/itbusinesstoday.com\/ja\/industrial-tech\/semiconductorandelectronics\/japans-compound-semiconductor-push-the-next-battleground-beyond-silicon\/","og_site_name":"itbusinesstoday","article_published_time":"2026-06-10T12:28:40+00:00","og_image":[{"width":1200,"height":800,"url":"https:\/\/itbusinesstoday.com\/wp-content\/uploads\/2026\/06\/Japans-Compound-Semiconductor-Push-The-Next-Battleground-Beyond-Silicon.webp","type":"image\/webp"}],"author":"Ren Yamaguchi","twitter_card":"summary_large_image","twitter_misc":{"\u57f7\u7b46\u8005":"Ren Yamaguchi","\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593":"8\u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/itbusinesstoday.com\/industrial-tech\/semiconductorandelectronics\/japans-compound-semiconductor-push-the-next-battleground-beyond-silicon\/#article","isPartOf":{"@id":"https:\/\/itbusinesstoday.com\/industrial-tech\/semiconductorandelectronics\/japans-compound-semiconductor-push-the-next-battleground-beyond-silicon\/"},"author":{"name":"Ren Yamaguchi","@id":"https:\/\/itbusinesstoday-68b209.ingress-baronn.ewp.live\/#\/schema\/person\/b8203deb010619b22b097ae20ba697f7"},"headline":"Japan\u2019s Compound Semiconductor Push: The Next Battleground Beyond 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