Guides for engineers and buyers sourcing machined parts for semiconductor equipment.https://semicnc.com/https://semicnc.com/blog/molybdenum-titanium-parts-vacuum/https://semicnc.com/blog/molybdenum-titanium-parts-vacuum/Molybdenum machining and titanium parts for vacuum semiconductor tools compared: expansion, heat handling, outgassing and what each metal needs on the drawing.Mon, 19 Oct 2026 00:00:00 GMThttps://semicnc.com/blog/mic-6-aluminum-plate-for-chambers/https://semicnc.com/blog/mic-6-aluminum-plate-for-chambers/How 6061-T651, 5083 and MIC-6 cast aluminum plate compare for vacuum chamber bodies and lids: flatness, stress, welding, anodize response, cost, typical data.Sun, 18 Oct 2026 00:00:00 GMThttps://semicnc.com/blog/load-lock-transfer-chamber-parts/https://semicnc.com/blog/load-lock-transfer-chamber-parts/Load lock chamber and transfer chamber parts explained: materials, flatness, port and sealing faces, shelves and the RFQ lines that keep quotes comparable.Sat, 17 Oct 2026 00:00:00 GMThttps://semicnc.com/blog/helium-leak-testing-vacuum-chamber-parts/https://semicnc.com/blog/helium-leak-testing-vacuum-chamber-parts/How a helium leak test works on machined vacuum parts, which method fits which leak rate, and the five lines a drawing needs so the quote and the test match.Fri, 16 Oct 2026 00:00:00 GMThttps://semicnc.com/blog/gas-showerhead-machining-hole-count-burrs/https://semicnc.com/blog/gas-showerhead-machining-hole-count-burrs/How showerhead machining is priced: hole count, diameter, plate thickness, burr control and coating growth, with a drilling time table and a drawing checklist.Thu, 15 Oct 2026 00:00:00 GMThttps://semicnc.com/blog/electropolishing-316l-uhp-gas-parts/https://semicnc.com/blog/electropolishing-316l-uhp-gas-parts/What electropolishing does to 316L gas parts, how much material it removes, which finish numbers to call and what it cannot fix, with a stage by stage Ra table.Wed, 14 Oct 2026 00:00:00 GMThttps://semicnc.com/blog/efem-frames-plates-robot-brackets/https://semicnc.com/blog/efem-frames-plates-robot-brackets/EFEM parts explained: frames, load port plates, robot mounting plates and brackets, with typical materials, flatness and position callouts and finishes.Tue, 13 Oct 2026 00:00:00 GMThttps://semicnc.com/blog/cmp-tool-retaining-ring-carrier-head/https://semicnc.com/blog/cmp-tool-retaining-ring-carrier-head/CMP retaining ring and carrier head parts explained: PPS and PEEK rings, slurry grooves, flatness and thickness callouts and the drawing notes to add.Mon, 12 Oct 2026 00:00:00 GMThttps://semicnc.com/blog/cmm-flatness-reports-chamber-parts/https://semicnc.com/blog/cmm-flatness-reports-chamber-parts/How CMM inspection of semiconductor chamber parts works: flatness callouts by face, point counts, temperature, report contents and what to write in the RFQ.Sun, 11 Oct 2026 00:00:00 GMThttps://semicnc.com/blog/alumina-aln-ceramics-wafer-tools/https://semicnc.com/blog/alumina-aln-ceramics-wafer-tools/Alumina and aluminum nitride compared for wafer tool parts: thermal conductivity, expansion, strength, tolerances after sintering and how the parts are made.Sat, 10 Oct 2026 00:00:00 GMThttps://semicnc.com/blog/316l-vim-var-stainless-uhp-gas-lines/https://semicnc.com/blog/316l-vim-var-stainless-uhp-gas-lines/What VIM-VAR 316L is, how it differs from standard air-melt stock, where low sulfur and clean inclusions matter and what to ask for on the mill certificate.Mon, 05 Oct 2026 00:00:00 GMThttps://semicnc.com/blog/aluminum-vs-stainless-vacuum-chamber-parts/https://semicnc.com/blog/aluminum-vs-stainless-vacuum-chamber-parts/How to choose between 6061 aluminum and 316L stainless for a vacuum chamber part, and the corrosion, weight and machining tradeoffs that actually decide it.Sun, 27 Sep 2026 00:00:00 GMThttps://semicnc.com/blog/chamber-and-wafer-handling-part-costs/https://semicnc.com/blog/chamber-and-wafer-handling-part-costs/Where the money goes on a chamber lid or an end effector: material and certs, flatness, surface finish, the anodize and electropolish chain, and quantity.Sat, 26 Sep 2026 00:00:00 GMThttps://semicnc.com/blog/cleanliness-surface-finish-vacuum-parts/https://semicnc.com/blog/cleanliness-surface-finish-vacuum-parts/What a vacuum drawing means by cleanliness, which Ra value belongs on which face, which materials are accepted, and how to specify cleaning and packing.Sat, 26 Sep 2026 00:00:00 GMThttps://semicnc.com/blog/machined-parts-for-semiconductor-equipment/https://semicnc.com/blog/machined-parts-for-semiconductor-equipment/What separates a semiconductor equipment part from a general precision part, which part families exist, and what a machine shop must control to make one.Sat, 26 Sep 2026 00:00:00 GMThttps://semicnc.com/blog/qualify-a-machine-shop-for-semiconductor-work/https://semicnc.com/blog/qualify-a-machine-shop-for-semiconductor-work/The questions, documents and sample parts that show whether a precision shop can really run semiconductor hardware, and the answers that end the conversation.Sat, 26 Sep 2026 00:00:00 GMT