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QC Department
We at CoreStaff Co., Ltd., put an emphasis on delivering quality parts to our customers. Each part is inspected with proven methods before being released for sale.
【Inspection equipment】
Micro-Scope 245 magnifications
（Keyence :VH-5000）
X-ray
Curve Tracer
Thermostatic Tank（ESPEC）
Fluorescent X-ray
IC Opener
LCR Meter
Solder Pot
Analytical Balance
Thermal Desorption MS
| Inspection Points | Countermeasures |
| For all Items | |
| Checked for part number discrepencies as well as faults. Ex. Bent pins, oxidation |
Inspected by hand by Specialists
|
| For parts from the open market | |
| Check if parts were used | Inspected by microscope
|
| Check if parts have been written or not | Inspected by microscope
|
| Check if items are fake or not | Inspected by microscope,checking of markings and packaging.
Use of X-ray to compare with orginal samples.
|
| A-1 | Stock from authorized distributor or directly from the MFR. Failure analysis* and other related documents* can be issued from authorized supplier or the MFR upon request. (*Needs to be confirmed) |
|---|---|
| A-2 |
Stock from authorized distributor or directly from the MFR. Failure analysis and other related documents CANNOT be arranged. |
| A-3 |
Excess inventory purchased through authorized channels, securely stored at OEM or CM warehouses and quality-assured by CoreStaff. Should any issues arise, we will cover the cost for failure analysis through our partnered test house. |
| A-4 |
CoreStaff’s own stock. EMS, OEM, MFR and/or distributor excess stock. Includes but not limited to Japanese OEM consignment stock. Quality and availability guaranteed by CoreStaff. |
| B-1 |
Supplier’s own stock; EMS, OEM or MFR excess stock. Reliable supplier, who’s been doing business with CoreStaff for many years. |
| B-2 |
Supplier’s partner stock; not their own stock. Reliable supplier, who has been doing business with CoreStaff for many years. |
| C-1 |
Supplier’s own stock. Secondary supplier with less transaction history. |
| C-2 |
Supplier’s partner stock; not their own stock. Secondary supplier with less transaction history. |
Warranty of quality
| 1. in stock | We offer a 60 day warranty for all parts |
| 2. Items from open market | Based on supplier's warranty |
※ However, the warranty will only cover the price of the purchased product, not including shipping, testing, or any other fees.
Facility of Incoming Inspection
- 「FAKE BLOCKER」An automatic X-ray checking reel device
- X-Ray(Matsusada Precision uB1000)
- Micro-Scope 245 magnifications(Keyence VH-5000)
- Vaccumed Packing Machine
- Precision Digital Scale
- Chip counters
- Static Electricity Removal Device
