{"product_id":"innosilicon-t2t-t1668b-t1668-asic-chip-tin-fixture-stencil","title":"Innosilicon T2T T1668B T1668 ASIC Chips Tin Fixture Stencil Plate","description":"\u003ch2\u003eT1668B \/ T1668 \/ T1668A Tin Fixture Stencil Plate 100mm | Solder-Paste Tool for Innosilicon T2T Hashboard ASIC Chip Replacement\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eT1668B \/ T1668 \/ T1668A tin fixture stencil plate\u003c\/strong\u003e is a 7\u003cstrong\u003e0mm soldering aid\u003c\/strong\u003e for chip-level repair on \u003cstrong\u003eInnosilicon T2T hashboards\u003c\/strong\u003e. Designed to deposit an even, controlled layer of solder paste over the ASIC chip pad array — reducing bridging, voiding, and solder-starved joints during reflow rework. The same stencil works across the T1668, T1668A, and T1668B chip variants found on T2T-family boards.\u003c\/p\u003e\n\u003cp\u003eUsed with a hot-air station or chip-level reflow rework station: place the stencil over the chip footprint, scrape paste across the openings, lift the stencil, place the chip, and reflow. Pad-level precision that hand-tinning with an iron simply cannot match — critical when one repair board carries dozens of identical ASIC sites.\u003c\/p\u003e\n\u003ch3\u003eWhen You Need the T1668B Tin Stencil\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacing a failed T1668 \/ T1668A \/ T1668B chip\u003c\/strong\u003e after diagnostics on a T2T hashboard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRe-tinning pads\u003c\/strong\u003e after lifting a dead chip — restores even pad geometry for the next reflow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalvaging working chips\u003c\/strong\u003e from a scrap hashboard for reuse on a recoverable board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBench-level repair throughput\u003c\/strong\u003e — speed and consistency improve dramatically over freehand soldering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eT1668B Tin Fixture Stencil Specifications\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; height: 190px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003cth style=\"width: 31.374783%; height: 19px;\"\u003eItem\u003c\/th\u003e\n\u003cth style=\"width: 65.850152%; height: 19px;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.374783%; height: 19px;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"width: 65.850152%; height: 19px;\"\u003eT1668B Stencil Plate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.374783%; height: 19px;\"\u003eCompatible Chips\u003c\/td\u003e\n\u003ctd style=\"width: 65.850152%; height: 19px;\"\u003eT1668, T1668A, T1668B (Innosilicon T2T family)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.374783%; height: 19px;\"\u003eStencil Size\u003c\/td\u003e\n\u003ctd style=\"width: 65.850152%; height: 19px;\"\u003e70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.374783%; height: 19px;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"width: 65.850152%; height: 19px;\"\u003eTin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.374783%; height: 19px;\"\u003ePurpose\u003c\/td\u003e\n\u003ctd style=\"width: 65.850152%; height: 19px;\"\u003eChip fixture \/ solder paste deposition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.374783%; height: 19px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"width: 65.850152%; height: 19px;\"\u003e0.005 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.374783%; height: 19px;\"\u003eReusability\u003c\/td\u003e\n\u003ctd style=\"width: 65.850152%; height: 19px;\"\u003eReusable with proper cleaning between cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.374783%; height: 19px;\"\u003eCompatible Hashboard\u003c\/td\u003e\n\u003ctd style=\"width: 65.850152%; height: 19px;\"\u003eInnosilicon T2T series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.374783%; height: 19px;\"\u003eCondition\u003c\/td\u003e\n\u003ctd style=\"width: 65.850152%; height: 19px;\"\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eFAQ — T1668B Tin Stencil\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Which Innosilicon model is this for?\u003c\/strong\u003e\u003cbr\u003eA: T2T-family hashboards using the T1668, T1668A, or T1668B ASIC chip footprint. The chip pad pattern is shared across the three variants, so one stencil covers all three.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Hot air station temperature for reflow?\u003c\/strong\u003e\u003cbr\u003eA: Use the solder paste manufacturer's profile — typically 220–250°C peak with bottom-side preheat at 130–150°C for proper reflow without thermal shock. Always preheat the entire board before applying top-side heat to avoid PCB warping.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Clean the stencil between uses?\u003c\/strong\u003e\u003cbr\u003eA: Yes — wipe with isopropyl alcohol immediately after use. Dried solder paste in the apertures will cause incomplete deposits on the next chip, leading to opens or starved joints.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Bulk pricing for repair benches?\u003c\/strong\u003e\u003cbr\u003eA: Yes — email contact@lys-sz.com for volume pricing on Innosilicon T2T stencils and matched-set rework kits.\u003c\/p\u003e\n\u003ch3\u003eRelated products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/t1668b-tin-tool-chips-fixture-with-stencil-plate-and-holder-for-innosilicon-t2t\"\u003eT1668B Tin Tool Kit with Holder (Innosilicon T2T)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/bm1485-repair-tin-fixture-tool-antminer-hashboard-l3\"\u003eBM1485 Tin Fixture Kit (Antminer L3 \/ L3+ \/ L3++ \/ L7)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/antminer-bm1387-bm1393-bm1396-bm1397-bm1398-universal-tin-fixture-stencil-plate\"\u003eBM1387–BM1398 Universal Tin Stencil (Antminer)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/universal-tin-fixture-steel-mesh-antminer-bm1362ak-bm1362aj-bm1362bd-asic-chips\"\u003eBM1362 Series Tin Fixture Steel Mesh\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInnosilicon T2T repair benches stocking T1668B tin stencils by the set? Email \u003ca href=\"mailto:contact@lys-sz.com\"\u003econtact@lys-sz.com\u003c\/a\u003e for bulk pricing. Worldwide shipping from our Shenzhen warehouse.\u003c\/p\u003e","brand":"LYS Shenzhen","offers":[{"title":"Default Title","offer_id":41722331857075,"sku":null,"price":4.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6710\/4179\/files\/Innosilicon-T2T-series-T1668B-T1668-Chips-Tin-Fixture-Stencil-Plate-Chip-Replacement.webp?v=1745308871","url":"https:\/\/lys-sz.com\/products\/innosilicon-t2t-t1668b-t1668-asic-chip-tin-fixture-stencil","provider":"LYS Shenzhen","version":"1.0","type":"link"}