Climbing the Silicon Value Chain: Why China’s Storage Giants Are Betting Billions on Advanced Packaging

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Selama beberapa dekad, industri memori dan storan semikonduktor global dibahagikan mengikut jurang teknologi yang sangat ketara. Di puncak rantaian nilai, syarikat gergasi bertaraf dunia menguasai pembuatan wafer silikon canggih yang menjana margin keuntungan lumayan. Sebaliknya, kebanyakan pengeluar storan di China sebelum ini berada pada tangga terbawah—sekadar membeli cip mentah daripada pembekal luar, memasangnya di atas papan litar bercetak (PCB), lalu membungkusnya menjadi pemacu kilat USB atau pemacu keadaan pepejal (SSD) asas. Model perniagaan pemasangan modul konvensional ini memberikan margin keuntungan yang kecil serta amat terdedah kepada turun naik harga pasaran cip mentah.

Kini, landskap tersebut sedang melalui transformasi besar. Pengeluar storan China giat melangkah keluar daripada sekadar menjadi pemasang modul biasa kepada pembangun teknologi pembungkusan cip canggih aras wafer (wafer-level advanced packaging). Perkembangan ini dibuktikan oleh Biwin Storage Technology—syarikat storan terkemuka yang tersenarai di bursa saham Shanghai—menerusi komitmen pelaburan sebanyak 4.5 bilion yuan (kira-kira RM3.1 bilion) bagi fasa ketiga pangkalan pembungkusan dan ujian termaju mereka di Dongguan, wilayah Guangdong.

Langkah ini bukan sekadar peluasan kapasiti kilang biasa, sebaliknya merupakan anjakan strategi menyeluruh. Di sebalik cabaran sekatan eksport peralatan litografi canggih global, ekosistem semikonduktor menyedari bahawa teknologi pembungkusan termaju ialah kaedah paling berkesan untuk melonjakkan prestasi dan kepadatan storan tanpa bergantung semata-mata kepada pengecilan saiz transistor secara konvensional.

Analisis Mendalam & Cara Teknologi Ini Berfungsi (Bahasa Mudah)

Bagi memahami perubahan ini, kita boleh mengibaratkan pembungkusan cip tradisional seperti membina deretan rumah setingkat di atas sebidang tanah yang luas. Cip pemproses dan cip memori diletakkan bersebelahan di atas papan litar, kemudian disambungkan menggunakan wayar emas atau tembaga halus yang panjang. Walaupun kaedah ini menjimatkan kos asas, wayar penyambung yang panjang menghasilkan rintangan isyarat elektrik, menjana haba berlebihan, dan mengambil ruang fizikal yang besar.

Pembungkusan termaju (Advanced Packaging) pula diibaratkan seperti membina menara pencakar langit serba moden di atas tapak tanah yang padat. Daripada memotong cip dan menyambungkannya dengan wayar luaran, jurutera menggunakan teknik seperti Wafer-Level Chip Scale Packaging (WLCSP) dan System-in-Package (SiP):

Pemprosesan Aras Wafer: Sambungan litar dan lapisan penebat dibina terus di atas kepingan wafer silikon sebelum ia dipotong.

Tiang Sambungan Mikroskopik: Wayar konvensional digantikan dengan tiang kuprum mikroskopik (micro-bumps), memendekkan jarak laluan isyarat daripada ukuran milimeter kepada mikrometer.

Susunan Menegak 3D: Cip-cip memori digilap sehingga senipis helaian kertas, disusun bertingkat-tingkat ke atas, dan dihubungkan melalui saluran tembus silikon (Through-Silicon Vias atau TSV).

Integrasi Komponen Tunggal: Pengawal storan, litar pengurusan kuasa, dan cip memori flash disatukan ke dalam satu pakej padat.

Pendekatan ini mengurangkan rintangan elektrik, menggandakan kelajuan pemindahan data, serta menjimatkan penggunaan bateri. Pelaburan Biwin di Dongguan memfokuskan kepada keupayaan kejuruteraan berketepatan tinggi ini bagi menghasilkan modul storan seperti eMMC, UFS, dan LPDDR generasi baharu.

Contoh Penggunaan Sebenar & Panduan Praktikal

Peralihan kepada pembungkusan storan termaju ini memberi impak ketara kepada prestasi pelbagai peranti harian:

1. Peranti Boleh Pakai & IoT Kompak: Ruang dalaman jam tangan pintar dan set cermin mata realiti terimbuh (AR) amat terhad. Penggunaan modul SiP membolehkan pengawal sistem dan memori berkapasiti tinggi disatukan ke dalam satu cip mikro kompak. Ini mengurangkan penggunaan ruang papan litar sehingga 40% serta meningkatkan kecekapan pelesapan haba sebanyak 25%.

2. Sistem Automotif & Bantuan Pemandu Pintar (ADAS): Storan gred automotif perlu beroperasi secara konsisten dalam julat suhu ekstrem (-40°C hingga 105°C) serta tahan gegaran jalan raya. Penghapusan sambungan wayar mudah putus melalui pembungkusan aras wafer meningkatkan daya tahan mekanikal modul storan kenderaan dan menepati piawaian ketat AEC-Q100.

3. Telefon Pintar Kelas Mercu & Pemprosesan AI Pada Peranti: Pemprosesan model kecerdasan buatan (AI) secara terus pada telefon pintar menuntut kadar pemindahan data yang sangat pantas. Modul storan UFS 4.0 berasaskan pembungkusan termaju mampu mencapai kelajuan bacaan data sehingga 4,200 MB/s dan kelajuan tulisan 2,800 MB/s, sekali gus melancarkan pemprosesan data tanpa sela masa sambil menjimatkan tenaga bateri.

Impak Kepada Pengguna & Industri di Malaysia

Perkembangan teknologi pembungkusan semikonduktor ini memberi beberapa implikasi penting kepada landskap teknologi di Malaysia:

Peluang dan Cabaran Hab Semikonduktor Tempatan: Malaysia, khususnya Pulau Pinang dan Kulim, merupakan hab penting dunia bagi perkhidmatan pemasangan dan ujian semikonduktor (OSAT). Apabila pemain industri serantau beralih pantas ke arah pembungkusan aras wafer, syarikat tempatan perlu terus mempertingkat keupayaan teknologi ke arah integrasi 2.5D/3D bernilai tinggi agar kekal berdaya saing dalam rantaian bekalan global.

Akses Kepada Peranti Berkualiti Tinggi Pada Kos Optimum: Bagi pengguna dan perniagaan di Malaysia, lonjakan keupayaan pengeluar serantau ini membuka ruang kepada penawaran komputer riba, telefon pintar, dan peralatan elektronik berprestasi tinggi pada harga yang lebih berpatutan.

Panduan Reka Bentuk Untuk Jurutera & Syarikat Pemula: Jurutera perkakasan dan syarikat reka bentuk elektronik tempatan disarankan untuk memanfaatkan modul bersepadu SiP dalam pembangunan produk baharu. Langkah ini membantu menghasilkan produk elektronik yang lebih kompak, tahan lasak, dan bersedia untuk pasaran automasi industri serta Internet Kebendaan (IoT).

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Executive Industry Context & Background

For decades, the global semiconductor memory ecosystem operated under a strict technological hierarchy. Front-end wafer fabrication—dominated by industry incumbents such as Samsung Electronics, SK Hynix, and Micron Technology—commanded the highest capital expenditure, intellectual property defensibility, and gross margins. Conversely, downstream manufacturers in mainland China were predominantly relegated to low-tier assembly roles: sourcing merchant NAND flash and DRAM dies from overseas foundries and surface-mounting them onto consumer solid-state drives (SSDs), USB drives, and generic embedded memory modules. This legacy outsourced semiconductor assembly and test (OSAT) approach offered low single-digit margins and left vendors vulnerable to volatile spot pricing.

A structural transformation is now reshaping this dynamic. Chinese memory specialists are aggressively pivoting from low-margin module packaging toward high-precision, front-to-back-end advanced packaging architectures. Spearheading this shift is Shenzhen-headquartered and Shanghai-listed Biwin Storage Technology, which has earmarked an investment of 4.5 billion yuan (approximately US$672 million) for the third phase of its advanced packaging and testing hub in Dongguan, Guangdong province.

This capital deployment represents a calculated strategic realignment. In an era where export controls restrict access to extreme ultraviolet (EUV) lithography and sub-3nm nodes, packaging has shifted from a back-end manufacturing commodity to the primary frontier for performance scaling. Through advanced wafer-level integration, storage companies can achieve substantial interconnect density and throughput improvements across high-density storage and edge artificial intelligence workloads.

Deep Architectural Breakdown & Core Engineering

To appreciate the significance of this transition, it is necessary to examine the physical constraints separating legacy printed circuit board (PCB) module assembly from wafer-level advanced packaging. Traditional memory packaging relied on wire bonding and conventional surface-mount technology (SMT). In these legacy setups, individual dies were diced from silicon wafers, attached to a substrate, and connected to contact pads via microscopic gold or copper wire loops before encapsulation in epoxy resin. While cost-effective, wire-bonded architectures suffer from significant parasitic capacitance, high inductance, limited pin density, and thermal throttling—rendering them inadequate for multi-gigahertz, dense memory stacking.

Advanced packaging frameworks, notably Wafer-Level Chip Scale Packaging (WLCSP) and System-in-Package (SiP) integrated with Through-Silicon Vias (TSV) and high-density Redistribution Layers (RDL), fundamentally re-engineer the interconnect topology:

Wafer-Level Processing: Instead of dicing the wafer into individual chips before packaging, critical routing, insulation, and interconnection steps are executed across the entire wafer concurrently.

Interconnect Miniaturization: Microscopic copper pillars and high-density micro-bumps replace looping wire bonds. This slashes interconnect pitch from hundreds of micrometers to the sub-20-micron regime, drastically lowering parasitic resistance and signal degradation.

Vertical Die Stacking (3D NAND & HBM): Modern high-capacity storage demands vertical stacking of up to 16 or 32 NAND dies within ultra-thin form factors (under 0.8 mm). This architecture requires sub-micron chemical-mechanical polishing (CMP), ultra-thin wafer grinding, and high-precision thermal dissipation layers.

Heterogeneous Integration: Advanced SiP allows logic controllers, power management integrated circuits (PMICs), and multi-channel LPDDR or NAND arrays to sit on a unified high-density silicon interposer, closing the latency gap between memory arrays and host processors.

Biwin's multi-billion yuan facility directly scales these precision capabilities, accelerating volume production for low-latency, compact embedded storage modules such as eMMC 5.1, UFS 3.1/4.0, and integrated LPDDR arrays.

Real-World Applications & Benchmark Performance

Moving to wafer-level advanced packaging delivers measurable real-world performance benefits across demanding hardware segments:

1. Ultra-Compact Smart Wearables & IoT: In smartwatches, AR/VR headsets, and medical wearables, internal chassis volume is at an absolute premium. Consolidating storage, memory, and controllers into a single monolithic SiP module reduces motherboard footprint by over 40% compared to discrete layouts, while optimizing thermal dissipation efficiency by upwards of 25% under continuous read/write cycles.

2. Automotive Cockpits & Level 2+/3 ADAS: Automotive-grade memory demands rigorous operational stability under thermal extremes (-40°C to 105°C) and continuous vibration. Eliminating fragile wire bonds via wafer-level packaging reduces defect rates measured in parts-per-billion (DPPM), ensuring compliance with stringent AEC-Q100 Grade 2/1 automotive standards.

3. On-Device AI & Flagship Mobile Devices: As smartphones run generative AI models locally, memory throughput serves as the key performance bottleneck. Advanced packaging architectures enable UFS 4.0 modules to hit sequential read speeds of up to 4,200 MB/s and sequential write speeds of 2,800 MB/s, cutting energy consumption per bit transferred by nearly 30% compared to previous generations.

Strategic Market Outlook & Key Takeaways

Biwin's 4.5 billion yuan facility underscores a wider industry reality: packaging is no longer just a protective shell for silicon; it is a primary driver of compute efficiency. As Moore’s Law slows down, "More than Moore" techniques—such as 2.5D/3D heterogeneous integration and wafer-level packaging—are vital for next-generation system performance.

Key takeaways for technology strategists and hardware engineers:

Vertical Supply Chain Integration: The era of basic module assemblers is drawing to a close. Device makers increasingly partner with storage vendors that operate in-house wafer-level packaging facilities to secure tighter quality control and customized form factors.

Ecosystem Resilience: Developing indigenous, high-density packaging capabilities provides regional supply chains with structural insulation against external equipment bottlenecks.

Bill-of-Materials (BOM) Optimization: Consolidating multiple discrete memory chips and controllers into integrated SiP modules reduces overall PCB complexity, lowers assembly costs, and improves long-term product reliability.

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