Chip RF (vi\u1ebft t\u1eaft c\u1ee7a Radio Frequency) l\u00e0 c\u00e1c m\u1ea1ch t\u00edch h\u1ee3p chuy\u00ean d\u1ee5ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 x\u1eed l\u00fd c\u00e1c t\u00edn hi\u1ec7u kh\u00f4ng d\u00e2y t\u1ea7n s\u1ed1 cao. Ch\u00fang ho\u1ea1t \u0111\u1ed9ng trong d\u1ea3i t\u1ea7n s\u1ed1 r\u1ed9ng, t\u1eeb 30 kHz \u0111\u1ebfn 300 GHz. C\u00e1c chip n\u00e0y \u0111\u00f3ng vai tr\u00f2 kh\u00f4ng th\u1ec3 thi\u1ebfu trong c\u00e1c h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng kh\u00f4ng d\u00e2y hi\u1ec7n \u0111\u1ea1i, t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn c\u00e1c l\u0129nh v\u1ef1c nh\u01b0 5G, Internet of Things (IoT), \u0111\u1ecbnh v\u1ecb v\u1ec7 tinh v\u00e0 \u0111i\u1ec7n t\u1eed \u00f4 t\u00f4.<\/p>\n\n\n\n
T\u1eeb g\u00f3c \u0111\u1ed9 ch\u1ee9c n\u0103ng, chip RF \u0111\u1ea3m nhi\u1ec7m m\u1ed9t s\u1ed1 nhi\u1ec7m v\u1ee5 c\u1ed1t l\u00f5i, bao g\u1ed3m \u0111i\u1ec1u ch\u1ebf v\u00e0 gi\u1ea3i \u0111i\u1ec1u ch\u1ebf t\u00edn hi\u1ec7u, khu\u1ebfch \u0111\u1ea1i c\u00f4ng su\u1ea5t, t\u1ed5ng h\u1ee3p t\u1ea7n s\u1ed1 v\u00e0 kh\u1eed nhi\u1ec5u. C\u00e1c lo\u1ea1i chip RF ph\u1ed5 bi\u1ebfn bao g\u1ed3m b\u1ed9 thu ph\u00e1t RF, b\u1ed9 khu\u1ebfch \u0111\u1ea1i c\u00f4ng su\u1ea5t (PA), b\u1ed9 khu\u1ebfch \u0111\u1ea1i ti\u1ebfng \u1ed3n th\u1ea5p (LNA) v\u00e0 c\u00f4ng t\u1eafc RF. Khi k\u1ebft h\u1ee3p v\u1edbi nhau, c\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y t\u1ea1o th\u00e0nh chu\u1ed7i truy\u1ec1n v\u00e0 nh\u1eadn t\u00edn hi\u1ec7u ho\u00e0n ch\u1ec9nh trong c\u00e1c thi\u1ebft b\u1ecb kh\u00f4ng d\u00e2y.<\/p>\n\n\n\n
Vi\u1ec7c thi\u1ebft k\u1ebf chip RF \u0111i k\u00e8m v\u1edbi nhi\u1ec1u th\u00e1ch th\u1ee9c k\u1ef9 thu\u1eadt. Th\u00e1ch th\u1ee9c l\u1edbn nh\u1ea5t l\u00e0 nhu c\u1ea7u x\u1eed l\u00fd t\u00edn hi\u1ec7u t\u1ea7n s\u1ed1 cao, \u0111\u00f2i h\u1ecfi b\u1ed1 tr\u00ed m\u1ea1ch ch\u00ednh x\u00e1c, kh\u1edbp tr\u1edf kh\u00e1ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI). \u0110\u1ec3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u v\u1ec1 th\u1eddi l\u01b0\u1ee3ng pin c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb di \u0111\u1ed9ng, c\u00e1c chip RF hi\u1ec7n \u0111\u1ea1i th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 CMOS v\u00e0 qu\u1ea3n l\u00fd n\u0103ng l\u01b0\u1ee3ng \u0111\u1ed9ng nh\u1eb1m \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng th\u1ea5p. M\u1ed9t xu h\u01b0\u1edbng quan tr\u1ecdng kh\u00e1c trong ph\u00e1t tri\u1ec3n chip RF l\u00e0 t\u00edch h\u1ee3p. B\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p nhi\u1ec1u m\u00f4-\u0111un nh\u01b0 PA, LNA v\u00e0 b\u1ed9 l\u1ecdc v\u00e0o m\u1ed9t chip duy nh\u1ea5t, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c m\u00f4-\u0111un \u0111\u1ea7u cu\u1ed1i RF (FEM), gi\u00fap n\u00e2ng cao hi\u1ec7u su\u1ea5t v\u00e0 gi\u1ea3m k\u00edch th\u01b0\u1edbc.<\/p>\n\n\n\n
L\u00e0 th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i gi\u00fap hi\u1ec7n th\u1ef1c h\u00f3a ch\u1ee9c n\u0103ng kh\u00f4ng d\u00e2y, chip RF \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u lo\u1ea1i thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed. Trong c\u00e1c h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng 5G, tr\u1ea1m g\u1ed1c v\u00e0 thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i \u0111\u1ec1u d\u1ef1a v\u00e0o chip RF hi\u1ec7u su\u1ea5t cao \u0111\u1ec3 x\u1eed l\u00fd t\u00edn hi\u1ec7u s\u00f3ng milimet v\u00e0 h\u1ed7 tr\u1ee3 c\u00f4ng ngh\u1ec7 Massive MIMO (Multiple Input Multiple Output). Trong l\u0129nh v\u1ef1c IoT, c\u00e1c chip RF chuy\u00ean d\u1ee5ng cho c\u00e1c giao th\u1ee9c BLE, Zigbee v\u00e0 LoRa \u0111\u1ea3m b\u1ea3o k\u1ebft n\u1ed1i \u1ed5n \u0111\u1ecbnh cho s\u1ed1 l\u01b0\u1ee3ng l\u1edbn thi\u1ebft b\u1ecb. T\u01b0\u01a1ng t\u1ef1, trong l\u0129nh v\u1ef1c \u0111i\u1ec7n t\u1eed \u00f4 t\u00f4, c\u00e1c h\u1ec7 th\u1ed1ng radar tr\u00ean xe v\u00e0 h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng V2X (Vehicle-to-Everything) ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c chip RF c\u00f3 \u0111\u1ed9 tin c\u1eady cao \u0111\u1ec3 th\u1ef1c hi\u1ec7n x\u1eed l\u00fd v\u00e0 truy\u1ec1n d\u1eef li\u1ec7u th\u1eddi gian th\u1ef1c.<\/p>\n\n\n\n
Vi\u1ec7c thi\u1ebft k\u1ebf m\u1ed9t chip RF \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1ec1 hi\u1ec7u su\u1ea5t \u0111\u00f2i h\u1ecfi ph\u1ea3i s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 EDA (T\u1ef1 \u0111\u1ed9ng h\u00f3a thi\u1ebft k\u1ebf \u0111i\u1ec7n t\u1eed) chuy\u00ean d\u1ee5ng nh\u01b0 Keysight ADS, Cadence Virtuoso v\u00e0 ANSYS HFSS \u0111\u1ec3 m\u00f4 ph\u1ecfng m\u1ea1ch, thi\u1ebft k\u1ebf b\u1ed1 tr\u00ed v\u00e0 ph\u00e2n t\u00edch \u0111i\u1ec7n t\u1eeb. Quy tr\u00ecnh thi\u1ebft k\u1ebf bao g\u1ed3m l\u1eadp k\u1ebf ho\u1ea1ch ki\u1ebfn tr\u00fac h\u1ec7 th\u1ed1ng, thi\u1ebft k\u1ebf m\u1ea1ch, tri\u1ec3n khai b\u1ed1 tr\u00ed, s\u1ea3n xu\u1ea5t wafer v\u00e0 th\u1eed nghi\u1ec7m. Trong giai \u0111o\u1ea1n th\u1eed nghi\u1ec7m, chip RF ph\u1ea3i tr\u1ea3i qua m\u1ed9t s\u1ed1 ki\u1ec3m tra hi\u1ec7u su\u1ea5t quan tr\u1ecdng, bao g\u1ed3m d\u1ea3i t\u1ea7n s\u1ed1, c\u00f4ng su\u1ea5t \u0111\u1ea7u ra, h\u1ec7 s\u1ed1 nhi\u1ec5u v\u00e0 \u0111\u1ed9 tuy\u1ebfn t\u00ednh \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a ch\u00fang trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf.<\/p>\n\n\n\n
Hi\u1ec7n nay, th\u1ecb tr\u01b0\u1eddng chip RF to\u00e0n c\u1ea7u \u0111ang b\u1ecb chi ph\u1ed1i b\u1edfi c\u00e1c t\u1eadp \u0111o\u00e0n qu\u1ed1c t\u1ebf h\u00e0ng \u0111\u1ea7u nh\u01b0 Qualcomm, Skyworks v\u00e0 Qorvo, nh\u1eefng \u0111\u01a1n v\u1ecb cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p to\u00e0n di\u1ec7n, t\u1eeb linh ki\u1ec7n \u0111\u1ea7u cu\u1ed1i RF 5G \u0111\u1ebfn c\u00e1c m\u00f4-\u0111un RF chuy\u00ean d\u1ee5ng. Tuy nhi\u00ean, trong b\u1ed1i c\u1ea3nh th\u00fac \u0111\u1ea9y ch\u00ednh s\u00e1ch thay th\u1ebf h\u00e0ng nh\u1eadp kh\u1ea9u b\u1eb1ng s\u1ea3n ph\u1ea9m n\u1ed9i \u0111\u1ecba, c\u00e1c doanh nghi\u1ec7p Trung Qu\u1ed1c nh\u01b0 Zhuhai Quanxin Microelectronics v\u00e0 Weijiechuang Semiconductor c\u0169ng \u0111ang \u0111\u1ea1t \u0111\u01b0\u1ee3c nh\u1eefng b\u01b0\u1edbc ti\u1ebfn \u0111\u00e1ng k\u1ec3 trong vi\u1ec7c ph\u00e1t tri\u1ec3n v\u00e0 ho\u00e0n thi\u1ec7n c\u00f4ng ngh\u1ec7 chip RF trong n\u01b0\u1edbc, \u0111\u1ed3ng th\u1eddi g\u00f3p ph\u1ea7n v\u00e0o s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a h\u1ec7 sinh th\u00e1i ng\u00e0nh.<\/p>","protected":false},"excerpt":{"rendered":"
RF chips, or Radio Frequency chips, are specialized integrated circuits designed to handle high-frequency wireless signals. They operate over a wide frequency range, from 30 kHz to 300 GHz. These chips play an indispensable role in modern wireless communication systems, impacting sectors such as 5G, the Internet of Things (IoT), satellite navigation, and automotive electronics. […]<\/p>\n","protected":false},"author":1,"featured_media":1343,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[30,31],"tags":[36],"class_list":["post-1342","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-insights","category-blog","tag-yvette-wu"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/posts\/1342","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/comments?post=1342"}],"version-history":[{"count":1,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/posts\/1342\/revisions"}],"predecessor-version":[{"id":1344,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/posts\/1342\/revisions\/1344"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/media\/1343"}],"wp:attachment":[{"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/media?parent=1342"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/categories?post=1342"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/tags?post=1342"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}