OEMメンブレンスイッチ製品群
Custom メンブレンキーパッド for OEM Control Interfaces
密閉型キーパッド アセンブリは、ツーリング開始前のドーム力、接着剤の選択、テールのルーティングを中心に設計されています。
カスタム メンブレン キーパッドは、印刷されたグラフィック オーバーレイ、触覚または非触覚ドーム回路、および密閉されたテール コネクタを、制御インターフェイス用の薄いドロップイン アセンブリに組み合わせています。
JASPERのスイッチを採用するOEM
キーパッドの故障のほとんどが生産開始前に判明する理由
返品された OEM キーパッドに見られる現場での故障の大部分は、3 つの根本原因によって説明されます。仕様外のドームの力、接着剤の層間剥離、およびテールベンドの亀裂です。どれも生産現場では起こりません。これらは仕様の段階で設計されます。
OEM エンジニアが私たちにレイアウトを送ってくると、最初に質問するのは、作動力の許容範囲、粘着基板の適合性、テール配線の形状についてです。図面の段階でこれら 3 つを適切に準備すれば、キーパッドはそれが管理する製品よりも長持ちします。
信頼性を決める詳細から始める
機械図面、コネクタ要件、ピン配置、ターゲット作動力、シーリングターゲット、オーバーレイ材料の好み、および予想される環境を送信します。 JASPER は、新しい OEM キーパッドの問い合わせを 1 営業日以内に審査します。
製造 and 規格対応
当社の 2,500 m² のクリーンルームは、ラミネート中の接着剤の結合ラインや回路層からの粒子汚染を防ぎます。入荷したシルバーインクと接着剤のロットは、生産にリリースされる前にテストされ、未加工のフィルムストックから完成した組み立てまでの材料の完全なトレーサビリティが保証されます。
設計、製造、検査までの品質管理システム。
EU 指令 2011/65/EU 材料準拠宣言は、ご要望に応じて入手可能です。
選択された材料系には 0.1% w/w を超える非常に懸念の高い物質は含まれていません。
Flame-retardant overlay and circuit substrate material options for qualified projects.
First-article inspection reports and PPAP documentation available for automotive and medical customers.
Engineering notes
The three failures to prevent at spec stage
These checks belong in design review, not after tooling is cut.
Dome force out of tolerance
Metal domes are commonly specified at 160 gf, 200 gf, 260 gf, or 320 gf, but supplier tolerance can be ±15%. JASPER can inspect incoming lots to a tighter agreed window, such as ±10%, before lamination.
Adhesive delamination
PET and PC overlays do not bond the same way. For thermal cycling, specify 3M 9080 or equivalent and request test evidence such as 50 cycles from –40 °C to +85 °C before production release.
Tail-bend cracking
The minimum safe bend radius is 6× tail thickness. A 0.125 mm PET tail needs at least 0.75 mm radius, silver ink should avoid the bend zone, and connector crimp should stay 5 mm away from the first bend.
How a Custom Membrane Keypad Project Starts
We start from your mechanical envelope and electrical interface, then design each layer to match the connector type, pin-out, actuation force, and IP rating. Tooling lead time is typically 10–15 business days; production samples follow within 3–5 days of tooling approval.
Production can include visual standards, electrical test records, force-displacement curves, peel-strength checks, FAIR, and PPAP documentation depending on the application.
- 01Mechanical envelope and artwork review
- 02Connector, pin-out, and tail routing confirmation
- 03Actuation force and IP rating specification
- 04Layer stack-up, tooling, and first-article sampling
- 05Electrical, visual, force, and adhesive inspection
Typical 用途
Medical devices
Patient monitors, infusion pumps, and diagnostic analyzers using IP65 sealing and chemical-resistant overlays for repeated cleaning.
Industrial control panels
PLCs, motor drives, and HVAC controllers with copper flex options and IP67 gasket seals for wash-down environments.
Test and measurement
Handheld analyzers and bench-top testers that need tight dome-force tolerances and ESD-protective overlays.
ホーム appliances
Washing machines, ovens, and air purifiers using cost-optimized carbon ink circuits and EL backlighting where required.
Fitness equipment
Treadmill consoles and elliptical displays with sweat-resistant hard-coat overlays and LED visibility under gym lighting.
Kiosks and vending machines
Ticketing terminals and self-service panels using vandal-resistant PC overlays, selective gloss legends, and IP54 sealing.
Frequently Asked Questions
What is a membrane keypad and how is it custom-built for OEM products?
A membrane keypad is a multi-layer input device in which key presses are registered by flexing a top membrane layer down onto a conductive circuit layer, completing an electrical circuit. The standard construction is: graphic overlay, top spacer, dome retainer, circuit spacer, bottom circuit layer, and mounting adhesive. For OEM customization, JASPER starts from the mechanical envelope and electrical interface, including connector type, pin-out, actuation force, and IP rating, then designs each layer to match.
What options are available when ordering a custom membrane keypad?
The main options are overlay material, key feel, circuit type, backlighting, adhesive, connector, surface finish, and protection rating. Typical choices include PET or PC overlays, non-tactile or 100–400 gf metal dome tactile keys, silver ink or copper flex circuits, 3M 467MP or 9080 adhesives, ZIF or FFC tails, and IP40 through IP67 protection. Secondary options include Braille embossing, selective gloss key legends, EMI shielding layers, and rigid backer plates.
How do I avoid dome-force and tail-bend failures in a membrane keypad?
For dome force, specify the target actuation force and tolerance window, confirm silver ink thickness uniformity, and request a force-displacement curve on first-article samples. For tail bending, enforce a minimum bend radius of 6× tail thickness, route silver ink traces around the bend zone, and keep connector terminations at least 5 mm from the first bend. Both failure modes are preventable at the design review stage.
Related Membrane Switch リソース
Custom membrane switches
See the broader membrane switch assembly options that support custom keypad builds.
Explore product →Membrane switch panels
Compare keypad layouts with larger panel interfaces, windows, LEDs, and enclosure-ready assemblies.
View related page →Membrane switch design guide
Prepare drawings, material callouts, connector details, and environmental requirements before RFQ.
ガイドを読む →Send your keypad drawing, connector requirement, and actuation force spec for engineering review.
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